{"title":"Weil-McLain","description":"","products":[{"product_id":"weil-mclain-ab-120h-aquabalance-series-2-120000-btu-heat-only-condensing-gas-boiler","title":"Weil-McLain AB-120H AquaBalance Series 2 120,000 BTU Heat-Only Condensing Gas Boiler","description":"\u003ch2\u003eWeil-McLain AB-120H AquaBalance Series 2 120,000 BTU Heat-Only Condensing Gas Boiler\u003c\/h2\u003e\n\u003cp\u003eWeil-McLain is a leading North American Brand of hydronic comfort heating systems for residential, commercial and institutional buildings, since 1881. Contractors, engineers, architects, homeowners, and facility managers alike rely on Weil-McLain boilers for their comfort heating needs. Installed in homes, offices, schools, restaurants, hotels, and other facilities throughout North America, the Weil-McLain brand is among the most trusted and often used in the building industry.\u003c\/p\u003e\n\u003ch5\u003eFeatures\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eCompact design to increase placement options\u003c\/li\u003e\n\u003cli\u003eHeavy gauge insulated jacket provides quiet operation\u003c\/li\u003e\n\u003cli\u003eContractor-friendly removable sides\u003c\/li\u003e\n\u003cli\u003ePre-wired, plug-in ready electrical design\u003c\/li\u003e\n\u003cli\u003eCommercial grade 120V power 6' cord with 3 prong plug\u003c\/li\u003e\n\u003cli\u003e24 VAC thermostat relay, fuse protected with prewired terminal strip\u003c\/li\u003e\n\u003cli\u003eHoneywell control with digital display\u003c\/li\u003e\n\u003cli\u003eWall mounting bracket and hardware included\u003c\/li\u003e\n\u003cli\u003eUnique \"3-in-1\" vent adapter readily accepts PVC, CPVC, SS, or PP vent materials\u003c\/li\u003e\n\u003cli\u003eMultiple vent options includes direct vent, 2 pipes or concentric, through roof or sidewall\u003c\/li\u003e\n\u003cli\u003eStrategically placed sensors used instead of additional bulky boiler controls\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"0\" data-end=\"30\"\u003eWhat Our Experts Think\u003c\/h5\u003e\n\u003cul data-start=\"31\" data-end=\"734\"\u003e\n\u003cli data-start=\"31\" data-end=\"279\"\u003e\n\u003cp data-start=\"33\" data-end=\"279\"\u003e\u003cstrong data-start=\"33\" data-end=\"65\"\u003eEfficient condensing design:\u003c\/strong\u003e The \u003cstrong data-start=\"70\" data-end=\"158\"\u003eWeil‑McLain AB‑120H AquaBalance Series 2 120,000 BTU Heat‑Only Condensing Gas Boiler\u003c\/strong\u003e uses condensing technology to extract more heat from combustion, lowering fuel costs compared to non‑condensing units.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"280\" data-end=\"439\"\u003e\n\u003cp data-start=\"282\" data-end=\"439\"\u003e\u003cstrong data-start=\"282\" data-end=\"302\"\u003eHeat‑only focus:\u003c\/strong\u003e Built to deliver \u003cstrong data-start=\"320\" data-end=\"342\"\u003espace heating only\u003c\/strong\u003e, it pairs well with a separate domestic hot‑water system, keeping design simple and efficient.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"440\" data-end=\"579\"\u003e\n\u003cp data-start=\"442\" data-end=\"579\"\u003e\u003cstrong data-start=\"442\" data-end=\"476\"\u003eQuiet, dependable performance:\u003c\/strong\u003e Smooth combustion and well‑engineered components provide \u003cstrong data-start=\"534\" data-end=\"555\"\u003econsistent warmth\u003c\/strong\u003e and stable operation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"580\" data-end=\"734\"\u003e\n\u003cp data-start=\"582\" data-end=\"734\"\u003e\u003cstrong data-start=\"582\" data-end=\"615\"\u003eDurable and service‑friendly:\u003c\/strong\u003e Corrosion‑resistant heat exchanger and accessible service points make maintenance easier and help extend service life.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"736\" data-end=\"755\"\u003eProduct Q\u0026amp;A\u003c\/h5\u003e\n\u003cul data-start=\"756\" data-end=\"1403\"\u003e\n\u003cli data-start=\"756\" data-end=\"942\"\u003e\n\u003cp data-start=\"758\" data-end=\"942\"\u003e\u003cstrong data-start=\"758\" data-end=\"789\"\u003eWhat does “heat‑only” mean?\u003c\/strong\u003e\u003cbr data-start=\"789\" data-end=\"792\"\u003eThe boiler provides \u003cstrong data-start=\"814\" data-end=\"836\"\u003espace heating only\u003c\/strong\u003e — it does not produce domestic hot water; a separate water heater or indirect tank is required for DHW.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"943\" data-end=\"1073\"\u003e\n\u003cp data-start=\"945\" data-end=\"1073\"\u003e\u003cstrong data-start=\"945\" data-end=\"971\"\u003eWhat fuel does it use?\u003c\/strong\u003e\u003cbr data-start=\"971\" data-end=\"974\"\u003e\u003cstrong data-start=\"976\" data-end=\"991\"\u003eNatural gas\u003c\/strong\u003e; a licensed HVAC tech can install a propane conversion kit if LP gas is needed.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1074\" data-end=\"1242\"\u003e\n\u003cp data-start=\"1076\" data-end=\"1242\"\u003e\u003cstrong data-start=\"1076\" data-end=\"1104\"\u003eWhere is this best used?\u003c\/strong\u003e\u003cbr data-start=\"1104\" data-end=\"1107\"\u003eIdeal for \u003cstrong data-start=\"1119\" data-end=\"1170\"\u003esingle‑family homes or light commercial systems\u003c\/strong\u003e with separate hot water sources that need efficient hydronic heating.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1243\" data-end=\"1403\"\u003e\n\u003cp data-start=\"1245\" data-end=\"1403\"\u003e\u003cstrong data-start=\"1245\" data-end=\"1269\"\u003eHow efficient is it?\u003c\/strong\u003e\u003cbr data-start=\"1269\" data-end=\"1272\"\u003eCondensing design boosts heat extraction from exhaust gases, improving \u003cstrong data-start=\"1345\" data-end=\"1374\"\u003eoverall system efficiency\u003c\/strong\u003e and lowering operating cost.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"1405\" data-end=\"1429\"\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cul data-start=\"1430\" data-end=\"2207\"\u003e\n\u003cli data-start=\"1430\" data-end=\"1609\"\u003e\n\u003cp data-start=\"1432\" data-end=\"1609\"\u003e\u003cstrong data-start=\"1432\" data-end=\"1462\"\u003eAnnual professional check:\u003c\/strong\u003e Have a licensed HVAC technician inspect and tune the boiler before the heating season — burner, heat exchanger, condensate system, and controls.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1610\" data-end=\"1740\"\u003e\n\u003cp data-start=\"1612\" data-end=\"1740\"\u003e\u003cstrong data-start=\"1612\" data-end=\"1639\"\u003eClear condensate lines:\u003c\/strong\u003e Ensure condensate drains and traps are clear and properly pitched to avoid clogs or freeze issues.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1741\" data-end=\"1850\"\u003e\n\u003cp data-start=\"1743\" data-end=\"1850\"\u003e\u003cstrong data-start=\"1743\" data-end=\"1779\"\u003eMonitor pressure \u0026amp; water levels:\u003c\/strong\u003e Maintain correct boiler pressure and verify expansion tank function.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1851\" data-end=\"1963\"\u003e\n\u003cp data-start=\"1853\" data-end=\"1963\"\u003e\u003cstrong data-start=\"1853\" data-end=\"1879\"\u003eClean vents \u0026amp; intakes:\u003c\/strong\u003e Keep air intake and exhaust terminations free of debris to ensure safe operation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1964\" data-end=\"2069\"\u003e\n\u003cp data-start=\"1966\" data-end=\"2069\"\u003e\u003cstrong data-start=\"1966\" data-end=\"1988\"\u003eInspect for leaks:\u003c\/strong\u003e Periodically check valves, joints, and piping for signs of water or gas leaks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2070\" data-end=\"2207\"\u003e\n\u003cp data-start=\"2072\" data-end=\"2207\"\u003e\u003cstrong data-start=\"2072\" data-end=\"2099\"\u003eMaintain water quality:\u003c\/strong\u003e Use recommended inhibitors and schedule periodic system flushing to reduce scale and extend component life.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Weil-McLain","offers":[{"title":"Default Title","offer_id":45440111083711,"sku":"W383100045","price":2187.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/Weil-McLain-AB-120H-AquaBalance-Series-2-120000-BTU-Heat-Only-Condensing-Gas-Boiler-Main-Image_27.jpg?v=1775023126"},{"product_id":"weil-mclain-cgi™-series-5-gas-boiler-381359364-cast-iron-induced-draft-84-afue","title":"Weil-McLain CGi Series 5 Gas Boiler 381359364 Cast Iron, Induced Draft, 84% AFUE","description":"\u003ch2 data-end=\"1001\" data-start=\"612\"\u003eWeil-McLain CGi Series 5 Gas Boiler 381359364 Cast Iron, Induced Draft, 84% AFUE\u003c\/h2\u003e\n\u003cp data-end=\"1001\" data-start=\"612\"\u003eThe \u003cstrong data-end=\"665\" data-start=\"616\"\u003eWeil-McLain CGi  Series 5 (Model 381-359-364)\u003c\/strong\u003e is a premium cast-iron, gas-fired hot-water boiler engineered for long-lasting comfort and efficiency. Designed for both residential and light commercial installations, this unit offers \u003cstrong data-end=\"881\" data-start=\"852\"\u003einduced-draft performance\u003c\/strong\u003e, an \u003cstrong data-end=\"916\" data-start=\"886\"\u003e84% AFUE efficiency rating\u003c\/strong\u003e, and a durable cast-iron heat exchanger that ensures reliable operation for decades.\u003c\/p\u003e\n\u003cp data-end=\"1394\" data-start=\"1003\"\u003eThis CGi model includes \u003cstrong data-end=\"1059\" data-start=\"1027\"\u003eUnity-CI text-based controls\u003c\/strong\u003e, a \u003cstrong data-end=\"1092\" data-start=\"1063\"\u003ebuilt-in low water cutoff\u003c\/strong\u003e, and a fully insulated jacket for improved thermal performance. With flexible venting, quiet operation, and proven reliability from Weil-McLain — North America’s most trusted boiler manufacturer — this system is an excellent choice for hydronic heating systems.\u003c\/p\u003e\n\u003ch5 data-end=\"1423\" data-start=\"1401\"\u003e\u003cstrong data-end=\"1423\" data-start=\"1404\"\u003eFeatures\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul data-end=\"2173\" data-start=\"1425\"\u003e\n\u003cli data-end=\"1526\" data-start=\"1425\"\u003e\n\u003cp data-end=\"1526\" data-start=\"1427\"\u003e\u003cstrong data-end=\"1450\" data-start=\"1427\"\u003e84% AFUE Efficiency\u003c\/strong\u003e for dependable heating performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1620\" data-start=\"1527\"\u003e\n\u003cp data-end=\"1620\" data-start=\"1529\"\u003e\u003cstrong data-end=\"1560\" data-start=\"1529\"\u003eUnity-CI electronic control\u003c\/strong\u003e with digital text display for simple setup \u0026amp; diagnostics.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1702\" data-start=\"1621\"\u003e\n\u003cp data-end=\"1702\" data-start=\"1623\"\u003e\u003cstrong data-end=\"1647\" data-start=\"1623\"\u003eInduced-draft design\u003c\/strong\u003e — improves venting reliability and system stability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1763\" data-start=\"1703\"\u003e\n\u003cp data-end=\"1763\" data-start=\"1705\"\u003e\u003cstrong data-end=\"1743\" data-start=\"1705\"\u003eIntegrated low-water cutoff system\u003c\/strong\u003e for added safety.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1839\" data-start=\"1764\"\u003e\n\u003cp data-end=\"1839\" data-start=\"1766\"\u003e\u003cstrong data-end=\"1805\" data-start=\"1766\"\u003eHeavy-duty cast-iron heat exchanger\u003c\/strong\u003e designed for long service life.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1906\" data-start=\"1840\"\u003e\n\u003cp data-end=\"1906\" data-start=\"1842\"\u003e\u003cstrong data-end=\"1862\" data-start=\"1842\"\u003eFlexible venting\u003c\/strong\u003e: natural draft or direct exhaust options.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1983\" data-start=\"1907\"\u003e\n\u003cp data-end=\"1983\" data-start=\"1909\"\u003e\u003cstrong data-end=\"1953\" data-start=\"1909\"\u003eCompatible with ECO-HP heat pump systems\u003c\/strong\u003e (Weil-McLain hybrid-ready).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2037\" data-start=\"1984\"\u003e\n\u003cp data-end=\"2037\" data-start=\"1986\"\u003e\u003cstrong data-end=\"2005\" data-start=\"1986\"\u003eQuiet operation\u003c\/strong\u003e with stainless-steel burners.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2097\" data-start=\"2038\"\u003e\n\u003cp data-end=\"2097\" data-start=\"2040\"\u003e\u003cstrong data-end=\"2078\" data-start=\"2040\"\u003eTested for 50 PSI working pressure\u003c\/strong\u003e (CSA certified).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2173\" data-start=\"2098\"\u003e\n\u003cp data-end=\"2173\" data-start=\"2100\"\u003e\u003cstrong data-end=\"2119\" data-start=\"2100\"\u003eMade in the USA\u003c\/strong\u003e heat exchanger.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"_tableContainer_1rjym_1\"\u003e\n\u003ch5 data-end=\"28\" data-start=\"0\"\u003eWhat Our Experts Think\u003c\/h5\u003e\n\u003cul data-end=\"727\" data-start=\"29\"\u003e\n\u003cli data-end=\"285\" data-start=\"29\"\u003e\n\u003cp data-end=\"285\" data-start=\"31\"\u003e\u003cstrong data-end=\"65\" data-start=\"31\"\u003eTrusted cast‑iron performance:\u003c\/strong\u003e The \u003cstrong data-end=\"127\" data-start=\"70\"\u003eWeil‑McLain CGi Series 5 Gas Boiler (Model 381359364)\u003c\/strong\u003e delivers \u003cstrong data-end=\"187\" data-start=\"137\"\u003edurable, corrosion‑resistant cast‑iron heating\u003c\/strong\u003e with stable, steady output — ideal for space‑heating in homes or small commercial applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"453\" data-start=\"286\"\u003e\n\u003cp data-end=\"453\" data-start=\"288\"\u003e\u003cstrong data-end=\"322\" data-start=\"288\"\u003eReliable induced draft design:\u003c\/strong\u003e The induced‑draft system improves combustion efficiency and airflow control, enhancing performance over older atmospheric units.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"593\" data-start=\"454\"\u003e\n\u003cp data-end=\"593\" data-start=\"456\"\u003e\u003cstrong data-end=\"480\" data-start=\"456\"\u003eEfficient operation:\u003c\/strong\u003e \u003cstrong data-end=\"493\" data-start=\"481\"\u003e84% AFUE\u003c\/strong\u003e provides respectable fuel savings and consistent warmth compared with older conventional boilers.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"727\" data-start=\"594\"\u003e\n\u003cp data-end=\"727\" data-start=\"596\"\u003e\u003cstrong data-end=\"617\" data-start=\"596\"\u003eService‑friendly:\u003c\/strong\u003e Well‑engineered with accessible components, making routine maintenance and technician tuning straightforward.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-end=\"746\" data-start=\"729\"\u003eProduct Q\u0026amp;A\u003c\/h5\u003e\n\u003cul data-end=\"1466\" data-start=\"747\"\u003e\n\u003cli data-end=\"908\" data-start=\"747\"\u003e\n\u003cp data-end=\"908\" data-start=\"749\"\u003e\u003cstrong data-end=\"781\" data-start=\"749\"\u003eWhat type of boiler is this?\u003c\/strong\u003e\u003cbr data-end=\"784\" data-start=\"781\"\u003eA \u003cstrong data-end=\"836\" data-start=\"788\"\u003ecast‑iron, natural gas‑fired hydronic boiler\u003c\/strong\u003e that generates hot water for baseboard, radiator, or radiant systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1115\" data-start=\"909\"\u003e\n\u003cp data-end=\"1115\" data-start=\"911\"\u003e\u003cstrong data-end=\"939\" data-start=\"911\"\u003eWhat does 84% AFUE mean?\u003c\/strong\u003e\u003cbr data-end=\"942\" data-start=\"939\"\u003eIt means \u003cstrong data-end=\"981\" data-start=\"953\"\u003e84% of the fuel’s energy\u003c\/strong\u003e is converted into usable heat — the rest is lost through exhaust. This efficiency is typical for traditional induced‑draft designs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1278\" data-start=\"1116\"\u003e\n\u003cp data-end=\"1278\" data-start=\"1118\"\u003e\u003cstrong data-end=\"1146\" data-start=\"1118\"\u003eWhere is this best used?\u003c\/strong\u003e\u003cbr data-end=\"1149\" data-start=\"1146\"\u003eIdeal for \u003cstrong data-end=\"1222\" data-start=\"1161\"\u003esingle‑family homes, duplexes, or small commercial spaces\u003c\/strong\u003e where dependable, straightforward heating is desired.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1466\" data-start=\"1279\"\u003e\n\u003cp data-end=\"1466\" data-start=\"1281\"\u003e\u003cstrong data-end=\"1317\" data-start=\"1281\"\u003eDoes it require special venting?\u003c\/strong\u003e\u003cbr data-end=\"1320\" data-start=\"1317\"\u003eYes — induced‑draft boilers require \u003cstrong data-end=\"1417\" data-start=\"1358\"\u003eproper venting (typically mechanical\/vent fan and flue)\u003c\/strong\u003e per local codes and manufacturer specifications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-end=\"1490\" data-start=\"1468\"\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cul data-end=\"2304\" data-start=\"1491\"\u003e\n\u003cli data-end=\"1669\" data-start=\"1491\"\u003e\n\u003cp data-end=\"1669\" data-start=\"1493\"\u003e\u003cstrong data-end=\"1525\" data-start=\"1493\"\u003eAnnual professional service:\u003c\/strong\u003e Have a licensed HVAC technician inspect the burner, heat exchanger, combustion performance, and controls each year before the heating season.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1802\" data-start=\"1670\"\u003e\n\u003cp data-end=\"1802\" data-start=\"1672\"\u003e\u003cstrong data-end=\"1700\" data-start=\"1672\"\u003eMonitor system pressure:\u003c\/strong\u003e Keep boiler pressure within manufacturer‑recommended ranges and check expansion tank functionality.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1916\" data-start=\"1803\"\u003e\n\u003cp data-end=\"1916\" data-start=\"1805\"\u003e\u003cstrong data-end=\"1833\" data-start=\"1805\"\u003eBleed air from circuits:\u003c\/strong\u003e Release trapped air in radiators or baseboards to ensure even heat distribution.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2037\" data-start=\"1917\"\u003e\n\u003cp data-end=\"2037\" data-start=\"1919\"\u003e\u003cstrong data-end=\"1948\" data-start=\"1919\"\u003eCheck venting and intake:\u003c\/strong\u003e Ensure vents, flue, and air intake remain clear of debris for safe combustion airflow.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2157\" data-start=\"2038\"\u003e\n\u003cp data-end=\"2157\" data-start=\"2040\"\u003e\u003cstrong data-end=\"2062\" data-start=\"2040\"\u003eInspect for leaks:\u003c\/strong\u003e Periodically check valves, fittings, and pipe connections for signs of water or gas leakage.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2304\" data-start=\"2158\"\u003e\n\u003cp data-end=\"2304\" data-start=\"2160\"\u003e\u003cstrong data-end=\"2183\" data-start=\"2160\"\u003eFlush periodically:\u003c\/strong\u003e Sediment and scale may accumulate over time — periodic flushing helps maintain efficiency and prolongs component life\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Weil-McLain","offers":[{"title":"Default Title","offer_id":45440111116479,"sku":"W381359364","price":3435.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/Weil-McLain-CGi-5-Series-4-119000-BTU-Cast-Iron-Natural-Gas-Boiler-Angled-View-2_26876a1c-8bd8-4fd3-80a2-17501c58c531_7.jpg?v=1775023128"},{"product_id":"weil-mclain-cgi-25-series-3-boilers-gas-conversion-kit-model-w510811260","title":"Weil-McLain CGi-25 Series 3 Boilers Gas Conversion Kit Model W510811260","description":"\u003ch2 data-start=\"219\" data-end=\"564\"\u003eWeil-McLain CGi-25 Series 3 Boilers Gas Conversion Kit Model W510811260\u003c\/h2\u003e\n\u003cp data-start=\"219\" data-end=\"564\"\u003eUpgrade your Weil-McLain CGi-25 Series 3 boiler with the \u003cstrong data-start=\"276\" data-end=\"333\"\u003eW510811260 Natural Gas to Propane (LP) Conversion Kit\u003c\/strong\u003e—designed to deliver seamless fuel flexibility without compromising performance. Whether you're switching to propane for availability, efficiency, or preference, this OEM-approved kit ensures a safe and reliable conversion process.\u003c\/p\u003e\n\u003ch5 data-start=\"566\" data-end=\"583\"\u003e\u003cstrong data-start=\"566\" data-end=\"583\"\u003eFeatures:\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul data-start=\"584\" data-end=\"1045\"\u003e\n\u003cli data-start=\"584\" data-end=\"687\"\u003e\n\u003cp data-start=\"586\" data-end=\"687\"\u003e\u003cstrong data-start=\"586\" data-end=\"619\"\u003eOEM-Engineered Compatibility:\u003c\/strong\u003e Specifically designed for Weil-McLain CGi-25 Series 3 gas boilers\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"688\" data-end=\"761\"\u003e\n\u003cp data-start=\"690\" data-end=\"761\"\u003e\u003cstrong data-start=\"690\" data-end=\"710\"\u003eFuel Conversion:\u003c\/strong\u003e Converts from natural gas to liquid propane (LP)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"762\" data-end=\"857\"\u003e\n\u003cp data-start=\"764\" data-end=\"857\"\u003e\u003cstrong data-start=\"764\" data-end=\"781\"\u003eComplete Kit:\u003c\/strong\u003e Includes all essential components for a proper, code-compliant conversion\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"858\" data-end=\"956\"\u003e\n\u003cp data-start=\"860\" data-end=\"956\"\u003e\u003cstrong data-start=\"860\" data-end=\"884\"\u003eTested and Approved:\u003c\/strong\u003e Meets manufacturer standards for safety, performance, and reliability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"957\" data-end=\"1045\"\u003e\n\u003cp data-start=\"959\" data-end=\"1045\"\u003e\u003cstrong data-start=\"959\" data-end=\"981\"\u003eEasy Installation:\u003c\/strong\u003e Straightforward instructions for qualified HVAC professionals\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"0\" data-end=\"30\"\u003eWhat Our Experts Think\u003c\/h5\u003e\n\u003cul data-start=\"31\" data-end=\"779\"\u003e\n\u003cli data-start=\"31\" data-end=\"283\"\u003e\n\u003cp data-start=\"33\" data-end=\"283\"\u003e\u003cstrong data-start=\"33\" data-end=\"65\"\u003eOEM‑matched fuel conversion:\u003c\/strong\u003e The \u003cstrong data-start=\"70\" data-end=\"139\"\u003eWeil‑McLain CGi‑25 Series 3 Gas Conversion Kit (Model W510811260)\u003c\/strong\u003e lets HVAC pros safely \u003cstrong data-start=\"162\" data-end=\"229\"\u003econvert compatible boilers between natural gas and propane (LP)\u003c\/strong\u003e while maintaining proper combustion and efficiency.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"284\" data-end=\"482\"\u003e\n\u003cp data-start=\"286\" data-end=\"482\"\u003e\u003cstrong data-start=\"286\" data-end=\"322\"\u003ePrecision‑calibrated components:\u003c\/strong\u003e Includes the correct \u003cstrong data-start=\"344\" data-end=\"374\"\u003ejets\/orifices and hardware\u003c\/strong\u003e sized for the CGi‑25 platform, ensuring accurate flame, heat output, and safe operation after conversion.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"483\" data-end=\"651\"\u003e\n\u003cp data-start=\"485\" data-end=\"651\"\u003e\u003cstrong data-start=\"485\" data-end=\"515\"\u003eQuality and compatibility:\u003c\/strong\u003e Designed by Weil‑McLain to meet \u003cstrong data-start=\"548\" data-end=\"579\"\u003emanufacturer specifications\u003c\/strong\u003e, reducing guesswork and helping preserve performance and reliability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"652\" data-end=\"779\"\u003e\n\u003cp data-start=\"654\" data-end=\"779\"\u003e\u003cstrong data-start=\"654\" data-end=\"682\"\u003eService‑friendly layout:\u003c\/strong\u003e Parts are organized for efficient installation by a licensed technician, saving time on the job.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"781\" data-end=\"800\"\u003eProduct Q\u0026amp;A\u003c\/h5\u003e\n\u003cul data-start=\"801\" data-end=\"1464\"\u003e\n\u003cli data-start=\"801\" data-end=\"944\"\u003e\n\u003cp data-start=\"803\" data-end=\"944\"\u003e\u003cstrong data-start=\"803\" data-end=\"839\"\u003eWhat is this conversion kit for?\u003c\/strong\u003e\u003cbr data-start=\"839\" data-end=\"842\"\u003eTo \u003cstrong data-start=\"847\" data-end=\"895\"\u003econvert a Weil‑McLain CGi‑25 Series 3 boiler\u003c\/strong\u003e between natural gas and \u003cstrong data-start=\"920\" data-end=\"936\"\u003epropane (LP)\u003c\/strong\u003e fuel.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"945\" data-end=\"1110\"\u003e\n\u003cp data-start=\"947\" data-end=\"1110\"\u003e\u003cstrong data-start=\"947\" data-end=\"980\"\u003eWill it work on other models?\u003c\/strong\u003e\u003cbr data-start=\"980\" data-end=\"983\"\u003eNo — this kit is made specifically for the \u003cstrong data-start=\"1028\" data-end=\"1047\"\u003eCGi‑25 Series 3\u003c\/strong\u003e platform; always confirm your exact model before purchasing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1111\" data-end=\"1274\"\u003e\n\u003cp data-start=\"1113\" data-end=\"1274\"\u003e\u003cstrong data-start=\"1113\" data-end=\"1150\"\u003eDoes it include all parts needed?\u003c\/strong\u003e\u003cbr data-start=\"1150\" data-end=\"1153\"\u003eYes — it typically includes \u003cstrong data-start=\"1183\" data-end=\"1256\"\u003epropane‑ or natural‑gas‑specific jets\/orifices and necessary hardware\u003c\/strong\u003e for conversion.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1275\" data-end=\"1464\"\u003e\n\u003cp data-start=\"1277\" data-end=\"1464\"\u003e\u003cstrong data-start=\"1277\" data-end=\"1305\"\u003eCan I install it myself?\u003c\/strong\u003e\u003cbr data-start=\"1305\" data-end=\"1308\"\u003e\u003cstrong data-start=\"1310\" data-end=\"1316\"\u003eNo\u003c\/strong\u003e — propane\/natural gas conversions must be done by a \u003cstrong data-start=\"1369\" data-end=\"1414\"\u003equalified HVAC or gas‑licensed technician\u003c\/strong\u003e to ensure safe, code‑compliant combustion tuning.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"1466\" data-end=\"1490\"\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cul data-start=\"1491\" data-end=\"2233\"\u003e\n\u003cli data-start=\"1491\" data-end=\"1653\"\u003e\n\u003cp data-start=\"1493\" data-end=\"1653\"\u003e\u003cstrong data-start=\"1493\" data-end=\"1530\"\u003ePost‑conversion combustion check:\u003c\/strong\u003e After installation, have a technician \u003cstrong data-start=\"1569\" data-end=\"1617\"\u003everify flame quality and combustion settings\u003c\/strong\u003e for safe and efficient operation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1654\" data-end=\"1778\"\u003e\n\u003cp data-start=\"1656\" data-end=\"1778\"\u003e\u003cstrong data-start=\"1656\" data-end=\"1691\"\u003eInspect gas fittings and lines:\u003c\/strong\u003e Regularly check connections and regulators to confirm secure, leak‑free performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1779\" data-end=\"1943\"\u003e\n\u003cp data-start=\"1781\" data-end=\"1943\"\u003e\u003cstrong data-start=\"1781\" data-end=\"1811\"\u003eInclude in annual service:\u003c\/strong\u003e Add the converted boiler to your \u003cstrong data-start=\"1845\" data-end=\"1876\"\u003eyearly maintenance schedule\u003c\/strong\u003e so burner, heat exchanger, and controls are routinely evaluated.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1944\" data-end=\"2080\"\u003e\n\u003cp data-start=\"1946\" data-end=\"2080\"\u003e\u003cstrong data-start=\"1946\" data-end=\"1964\"\u003eUse OEM parts:\u003c\/strong\u003e Always use \u003cstrong data-start=\"1976\" data-end=\"2020\"\u003eWeil‑McLain‑approved kits and components\u003c\/strong\u003e to maintain performance, safety, and warranty compliance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2081\" data-end=\"2233\"\u003e\n\u003cp data-start=\"2083\" data-end=\"2233\"\u003e\u003cstrong data-start=\"2083\" data-end=\"2114\"\u003eMonitor system performance:\u003c\/strong\u003e Keep an eye on pressure, temperature, and heat delivery — abnormal changes may indicate tuning needs after conversion.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Weil-McLain","offers":[{"title":"Default Title","offer_id":45440111149247,"sku":"SP-W510811260","price":258.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/510811262_15.webp?v=1775023130"},{"product_id":"weil-mclain-ab-155h-aquabalance-series-2-155000-btu-heat-only-condensing-gas-boiler","title":"Weil-McLain AB-155H AquaBalance Series 2 155,000 BTU Heat-Only Condensing Gas Boiler","description":"\u003ch2\u003eWeil-McLain AB-155H AquaBalance Series 2 155,000 BTU Heat-Only Condensing Gas Boiler\u003c\/h2\u003e\n\u003cp\u003eWeil-McLain is a leading North American Brand of hydronic comfort heating systems for residential, commercial and institutional buildings, since 1881. Contractors, engineers, architects, homeowners, and facility managers alike rely on Weil-McLain boilers for their comfort heating needs. Installed in homes, offices, schools, restaurants, hotels, and other facilities throughout North America, the Weil-McLain brand is among the most trusted and often used in the building industry.\u003c\/p\u003e\n\u003ch5\u003eFeatures\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eCompact design to increase placement options\u003c\/li\u003e\n\u003cli\u003eHeavy gauge insulated jacket provides quiet operation\u003c\/li\u003e\n\u003cli\u003eContractor-friendly removable sides\u003c\/li\u003e\n\u003cli\u003ePre-wired, plug-in ready electrical design\u003c\/li\u003e\n\u003cli\u003eCommercial grade 120V power 6' cord with 3 prong plug\u003c\/li\u003e\n\u003cli\u003e24 VAC thermostat relay, fuse protected with prewired terminal strip\u003c\/li\u003e\n\u003cli\u003eHoneywell control with digital display\u003c\/li\u003e\n\u003cli\u003eWall mounting bracket and hardware included\u003c\/li\u003e\n\u003cli\u003eUnique \"3-in-1\" vent adapter readily accepts PVC, CPVC, SS, or PP vent materials\u003c\/li\u003e\n\u003cli\u003eMultiple vent options includes direct vent, 2 pipes or concentric, through roof or sidewall\u003c\/li\u003e\n\u003cli\u003eStrategically placed sensors used instead of additional bulky boiler controls\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"0\" data-end=\"30\"\u003eWhat Our Experts Think\u003c\/h5\u003e\n\u003cul data-start=\"31\" data-end=\"824\"\u003e\n\u003cli data-start=\"31\" data-end=\"310\"\u003e\n\u003cp data-start=\"33\" data-end=\"310\"\u003e\u003cstrong data-start=\"33\" data-end=\"69\"\u003eHigh‑efficiency condensing heat:\u003c\/strong\u003e The \u003cstrong data-start=\"74\" data-end=\"162\"\u003eWeil‑McLain AB‑155H AquaBalance Series 2 155,000 BTU Heat‑Only Condensing Gas Boiler\u003c\/strong\u003e delivers \u003cstrong data-start=\"172\" data-end=\"197\"\u003econdensing efficiency\u003c\/strong\u003e that lowers fuel use and operating costs compared to traditional boilers while producing steady hydronic heat.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"311\" data-end=\"512\"\u003e\n\u003cp data-start=\"313\" data-end=\"512\"\u003e\u003cstrong data-start=\"313\" data-end=\"333\"\u003eHeat‑only focus:\u003c\/strong\u003e Designed specifically for \u003cstrong data-start=\"360\" data-end=\"377\"\u003espace‑heating\u003c\/strong\u003e, this model is ideal when \u003cstrong data-start=\"404\" data-end=\"482\"\u003edomestic hot water is provided by a separate water heater or indirect tank\u003c\/strong\u003e, simplifying system design.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"513\" data-end=\"655\"\u003e\n\u003cp data-start=\"515\" data-end=\"655\"\u003e\u003cstrong data-start=\"515\" data-end=\"547\"\u003eQuiet, dependable operation:\u003c\/strong\u003e Smooth combustion and robust controls deliver \u003cstrong data-start=\"594\" data-end=\"621\"\u003econsistent temperatures\u003c\/strong\u003e and low noise during operation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"656\" data-end=\"824\"\u003e\n\u003cp data-start=\"658\" data-end=\"824\"\u003e\u003cstrong data-start=\"658\" data-end=\"683\"\u003eBuilt for durability:\u003c\/strong\u003e Corrosion‑resistant heat exchangers and service‑friendly components promote long service life and easier maintenance for HVAC professionals.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"826\" data-end=\"845\"\u003eProduct Q\u0026amp;A\u003c\/h5\u003e\n\u003cul data-start=\"846\" data-end=\"1592\"\u003e\n\u003cli data-start=\"846\" data-end=\"1048\"\u003e\n\u003cp data-start=\"848\" data-end=\"1048\"\u003e\u003cstrong data-start=\"848\" data-end=\"879\"\u003eWhat does “heat‑only” mean?\u003c\/strong\u003e\u003cbr data-start=\"879\" data-end=\"882\"\u003eIt means the boiler is dedicated to \u003cstrong data-start=\"920\" data-end=\"942\"\u003espace‑heating only\u003c\/strong\u003e — it does not provide domestic hot water. A separate water heater or indirect tank is required for DHW.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1049\" data-end=\"1239\"\u003e\n\u003cp data-start=\"1051\" data-end=\"1239\"\u003e\u003cstrong data-start=\"1051\" data-end=\"1077\"\u003eWhat fuel does it use?\u003c\/strong\u003e\u003cbr data-start=\"1077\" data-end=\"1080\"\u003e\u003cstrong data-start=\"1082\" data-end=\"1097\"\u003eNatural gas\u003c\/strong\u003e — a propane (LP) conversion kit is often available and must be installed by a \u003cstrong data-start=\"1176\" data-end=\"1208\"\u003elicensed HVAC\/gas technician\u003c\/strong\u003e if propane fuel is required.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1240\" data-end=\"1405\"\u003e\n\u003cp data-start=\"1242\" data-end=\"1405\"\u003e\u003cstrong data-start=\"1242\" data-end=\"1275\"\u003eWhat systems does it support?\u003c\/strong\u003e\u003cbr data-start=\"1275\" data-end=\"1278\"\u003eCompatible with \u003cstrong data-start=\"1296\" data-end=\"1362\"\u003ehydronic baseboards, radiant floor systems, and fan‑coil units\u003c\/strong\u003e tied into a hot‑water distribution loop.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1406\" data-end=\"1592\"\u003e\n\u003cp data-start=\"1408\" data-end=\"1592\"\u003e\u003cstrong data-start=\"1408\" data-end=\"1436\"\u003eIs this high‑efficiency?\u003c\/strong\u003e\u003cbr data-start=\"1436\" data-end=\"1439\"\u003eYes — condensing technology extracts extra heat from combustion gases, raising overall \u003cstrong data-start=\"1528\" data-end=\"1565\"\u003eefficiency and lowering fuel cost\u003c\/strong\u003e over non‑condensing units.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"1594\" data-end=\"1618\"\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cul data-start=\"1619\" data-end=\"2519\"\u003e\n\u003cli data-start=\"1619\" data-end=\"1827\"\u003e\n\u003cp data-start=\"1621\" data-end=\"1827\"\u003e\u003cstrong data-start=\"1621\" data-end=\"1653\"\u003eAnnual professional service:\u003c\/strong\u003e Have a \u003cstrong data-start=\"1661\" data-end=\"1689\"\u003elicensed HVAC technician\u003c\/strong\u003e inspect and tune the boiler annually before the heating season — checking burner, heat exchanger, controls, and combustion performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1828\" data-end=\"1971\"\u003e\n\u003cp data-start=\"1830\" data-end=\"1971\"\u003e\u003cstrong data-start=\"1830\" data-end=\"1857\"\u003eCheck condensate drain:\u003c\/strong\u003e Ensure condensate lines and traps are clear and properly sloped to avoid blockages or freezing in cold weather.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1972\" data-end=\"2112\"\u003e\n\u003cp data-start=\"1974\" data-end=\"2112\"\u003e\u003cstrong data-start=\"1974\" data-end=\"2019\"\u003eMonitor system pressure \u0026amp; expansion tank:\u003c\/strong\u003e Maintain correct boiler pressure and verify the expansion tank’s condition as recommended.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2113\" data-end=\"2235\"\u003e\n\u003cp data-start=\"2115\" data-end=\"2235\"\u003e\u003cstrong data-start=\"2115\" data-end=\"2151\"\u003eClean intake \u0026amp; exhaust openings:\u003c\/strong\u003e Keep air intake and vent terminations free of debris for safe, efficient airflow.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2236\" data-end=\"2362\"\u003e\n\u003cp data-start=\"2238\" data-end=\"2362\"\u003e\u003cstrong data-start=\"2238\" data-end=\"2260\"\u003eInspect for leaks:\u003c\/strong\u003e Regularly check valves, pipe fittings, and connection points for signs of \u003cstrong data-start=\"2335\" data-end=\"2359\"\u003ewater or gas leakage\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2363\" data-end=\"2519\"\u003e\n\u003cp data-start=\"2365\" data-end=\"2519\"\u003e\u003cstrong data-start=\"2365\" data-end=\"2392\"\u003eMaintain water quality:\u003c\/strong\u003e Use recommended hydronic corrosion inhibitors and schedule periodic system flushing to reduce scale and extend component life.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Weil-McLain","offers":[{"title":"Default Title","offer_id":45440111247551,"sku":"W383100055","price":2396.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/Weil-McLain-AB-155H-AquaBalance-Series-2-155000-BTU-Heat-Only-Condensing-Gas-Boiler-Main-Image_20.jpg?v=1775023131"},{"product_id":"weil-mclain-ab-80c-aquabalance-series-2-80000-btu-condensing-gas-combi-boiler","title":"Weil-McLain AB-80C AquaBalance Series 2 80,000 BTU Condensing Gas Combi-Boiler","description":"\u003ch2\u003eWeil-McLain AB-80C AquaBalance Series 2 80,000 BTU Condensing Gas Combi-Boiler\u003c\/h2\u003e\n\u003cp\u003eWeil-McLain is a leading North American Brand of hydronic comfort heating systems for residential, commercial and institutional buildings, since 1881. Contractors, engineers, architects, homeowners, and facility managers alike rely on Weil-McLain boilers for their comfort heating needs. Installed in homes, offices, schools, restaurants, hotels, and other facilities throughout North America, the Weil-McLain brand is among the most trusted and often used in the building industry.\u003c\/p\u003e\n\u003ch5\u003eFeatures\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eCompact design to increase placement options\u003c\/li\u003e\n\u003cli\u003eHeavy gauge insulated jacket provides quiet operation\u003c\/li\u003e\n\u003cli\u003eContractor-friendly removable sides\u003c\/li\u003e\n\u003cli\u003ePre-wired, plug-in ready electrical design\u003c\/li\u003e\n\u003cli\u003eCommercial grade 120V power 6' cord with 3 prong plug\u003c\/li\u003e\n\u003cli\u003e24 VAC thermostat relay, fuse protected with prewired terminal strip\u003c\/li\u003e\n\u003cli\u003eHoneywell control with digital display\u003c\/li\u003e\n\u003cli\u003eWall mounting bracket and hardware included\u003c\/li\u003e\n\u003cli\u003eUnique \"3-in-1\" vent adapter readily accepts PVC, CPVC, SS, or PP vent materials\u003c\/li\u003e\n\u003cli\u003eMultiple vent options includes direct vent, 2 pipes or concentric, through roof or sidewall\u003c\/li\u003e\n\u003cli\u003eStrategically placed sensors used instead of additional bulky boiler controls\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"0\" data-end=\"30\"\u003eWhat Our Experts Think\u003c\/h5\u003e\n\u003cul data-start=\"31\" data-end=\"791\"\u003e\n\u003cli data-start=\"31\" data-end=\"282\"\u003e\n\u003cp data-start=\"33\" data-end=\"282\"\u003e\u003cstrong data-start=\"33\" data-end=\"56\"\u003eAll‑in‑one comfort:\u003c\/strong\u003e The \u003cstrong data-start=\"61\" data-end=\"143\"\u003eWeil‑McLain AB‑80C AquaBalance Series 2 80,000 BTU Condensing Gas Combi‑Boiler\u003c\/strong\u003e combines \u003cstrong data-start=\"153\" data-end=\"209\"\u003ehigh‑efficiency space heating and domestic hot water\u003c\/strong\u003e in a single unit — ideal for homes where space and performance matter.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"283\" data-end=\"462\"\u003e\n\u003cp data-start=\"285\" data-end=\"462\"\u003e\u003cstrong data-start=\"285\" data-end=\"317\"\u003eEfficient condensing design:\u003c\/strong\u003e Uses condensing technology to extract extra heat from combustion gases, resulting in \u003cstrong data-start=\"403\" data-end=\"418\"\u003ehigher AFUE\u003c\/strong\u003e, lower fuel costs, and reduced emissions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"463\" data-end=\"626\"\u003e\n\u003cp data-start=\"465\" data-end=\"626\"\u003e\u003cstrong data-start=\"465\" data-end=\"492\"\u003eSmart, compact package:\u003c\/strong\u003e Space‑saving footprint and integrated design reduce installation complexity compared with separate boiler and water heater systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"627\" data-end=\"791\"\u003e\n\u003cp data-start=\"629\" data-end=\"791\"\u003e\u003cstrong data-start=\"629\" data-end=\"650\"\u003eQuiet \u0026amp; reliable:\u003c\/strong\u003e Smooth combustion, corrosion‑resistant heat exchangers, and accessible service points provide dependable performance and easier maintenance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"793\" data-end=\"812\"\u003eProduct Q\u0026amp;A\u003c\/h5\u003e\n\u003cul data-start=\"813\" data-end=\"1508\"\u003e\n\u003cli data-start=\"813\" data-end=\"1022\"\u003e\n\u003cp data-start=\"815\" data-end=\"1022\"\u003e\u003cstrong data-start=\"815\" data-end=\"842\"\u003eWhat is a combi‑boiler?\u003c\/strong\u003e\u003cbr data-start=\"842\" data-end=\"845\"\u003eA \u003cstrong data-start=\"849\" data-end=\"871\"\u003ecombination boiler\u003c\/strong\u003e that provides both \u003cstrong data-start=\"891\" data-end=\"908\"\u003espace heating\u003c\/strong\u003e (hydronic baseboards\/radiant systems) and \u003cstrong data-start=\"951\" data-end=\"973\"\u003edomestic hot water\u003c\/strong\u003e from one unit without a separate water heater.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1023\" data-end=\"1155\"\u003e\n\u003cp data-start=\"1025\" data-end=\"1155\"\u003e\u003cstrong data-start=\"1025\" data-end=\"1051\"\u003eWhat fuel does it use?\u003c\/strong\u003e\u003cbr data-start=\"1051\" data-end=\"1054\"\u003eNatural gas; qualified HVAC technicians can install an \u003cstrong data-start=\"1111\" data-end=\"1142\"\u003eLP (propane) conversion kit\u003c\/strong\u003e if needed.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1156\" data-end=\"1322\"\u003e\n\u003cp data-start=\"1158\" data-end=\"1322\"\u003e\u003cstrong data-start=\"1158\" data-end=\"1184\"\u003eWhere is it best used?\u003c\/strong\u003e\u003cbr data-start=\"1184\" data-end=\"1187\"\u003eIdeal for \u003cstrong data-start=\"1199\" data-end=\"1255\"\u003esingle‑family homes or smaller multi‑unit residences\u003c\/strong\u003e where compact efficiency and integrated hot water are desirable.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1323\" data-end=\"1508\"\u003e\n\u003cp data-start=\"1325\" data-end=\"1508\"\u003e\u003cstrong data-start=\"1325\" data-end=\"1361\"\u003eDoes it require special venting?\u003c\/strong\u003e\u003cbr data-start=\"1361\" data-end=\"1364\"\u003eYes — like other condensing units, it uses \u003cstrong data-start=\"1409\" data-end=\"1462\"\u003elow‑temperature PVC\/CPVC or polypropylene venting\u003c\/strong\u003e to handle cool exhaust and condensate safely.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"1510\" data-end=\"1534\"\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cul data-start=\"1535\" data-end=\"2315\"\u003e\n\u003cli data-start=\"1535\" data-end=\"1701\"\u003e\n\u003cp data-start=\"1537\" data-end=\"1701\"\u003e\u003cstrong data-start=\"1537\" data-end=\"1569\"\u003eAnnual professional tune‑up:\u003c\/strong\u003e Have a licensed HVAC technician inspect the burner, heat exchanger, controls, and combustion to ensure safe, efficient operation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1702\" data-end=\"1830\"\u003e\n\u003cp data-start=\"1704\" data-end=\"1830\"\u003e\u003cstrong data-start=\"1704\" data-end=\"1731\"\u003eCheck condensate drain:\u003c\/strong\u003e Ensure condensate lines and traps are \u003cstrong data-start=\"1770\" data-end=\"1800\"\u003eclear and properly pitched\u003c\/strong\u003e to avoid clogs or freezing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1831\" data-end=\"1958\"\u003e\n\u003cp data-start=\"1833\" data-end=\"1958\"\u003e\u003cstrong data-start=\"1833\" data-end=\"1874\"\u003eMonitor system pressure \u0026amp; water temp:\u003c\/strong\u003e Keep boiler pressure within recommended range; verify expansion tank performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1959\" data-end=\"2075\"\u003e\n\u003cp data-start=\"1961\" data-end=\"2075\"\u003e\u003cstrong data-start=\"1961\" data-end=\"1994\"\u003eClean intake \u0026amp; exhaust paths:\u003c\/strong\u003e Keep air intake and vent terminations free of debris to maintain safe airflow.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2076\" data-end=\"2190\"\u003e\n\u003cp data-start=\"2078\" data-end=\"2190\"\u003e\u003cstrong data-start=\"2078\" data-end=\"2100\"\u003eInspect for leaks:\u003c\/strong\u003e Periodically examine valves, fittings, and connections for signs of water or gas leaks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2191\" data-end=\"2315\"\u003e\n\u003cp data-start=\"2193\" data-end=\"2315\"\u003e\u003cstrong data-start=\"2193\" data-end=\"2220\"\u003eMaintain water quality:\u003c\/strong\u003e Use proper inhibitors and schedule periodic system flushing to reduce scale and extend life\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Weil-McLain","offers":[{"title":"Default Title","offer_id":45440111313087,"sku":"W383100030","price":2347.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/Weil-McLain-AB-80C-AquaBalance-Series-2-80000-BTU-Condensing-Gas-Combi-Boiler-Main-Image_18.jpg?v=1775023134"},{"product_id":"weil-mclain-eco-tec-150-h-150000-btu-heat-only-condensing-gas-boiler","title":"Weil-McLain ECO Tec 150-H 150,000 BTU Heat-Only Condensing Gas Boiler","description":"\u003ch2\u003eWeil-McLain ECO Tec 150-H 150,000 BTU Heat-Only Condensing Gas Boiler\u003c\/h2\u003e\n\u003cp\u003eWeil-McLain is a leading North American Brand of hydronic comfort heating systems for residential, commercial and institutional buildings, since 1881. Contractors, engineers, architects, homeowners, and facility managers alike rely on Weil-McLain boilers for their comfort heating needs. Installed in homes, offices, schools, restaurants, hotels, and other facilities throughout North America, the Weil-McLain brand is among the most trusted and often used in the building industry.\u003c\/p\u003e\n\u003ch5\u003eFeatures\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eSpacious cabinet allows full access to all critical parts that are strategically positioned\u003c\/li\u003e\n\u003cli\u003eDurable, high-grade stainless steel firetube primary heat exchanger maximizes heat transfer, and its vertical design promotes self-rinsing during operation\u003c\/li\u003e\n\u003cli\u003eCorrosion-resistant polypropylene heat exchanger base protects against acidic condensate\u003c\/li\u003e\n\u003cli\u003eSound-dampening air silencer for whisper-quiet operation\u003c\/li\u003e\n\u003cli\u003eInsulated heat exchanger and DHW pipes further reduce heat loss and noise\u003c\/li\u003e\n\u003cli\u003eSealed cabinet preheats incoming air for smooth starting, and does not pull any potential outside debris directly into blower and burner\u003c\/li\u003e\n\u003cli\u003eRemovable, unique control terminal blocks eliminate potential field wiring errors\u003c\/li\u003e\n\u003cli\u003eBuilt-in, variable speed ECM circulator saves electrical energy and installation time\u003c\/li\u003e\n\u003cli\u003e3-in-1 universal air and vent adapters readily accept different types of pipe materials along with built-in test ports to aid combustion testing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"0\" data-end=\"30\"\u003eWhat Our Experts Think\u003c\/h5\u003e\n\u003cul data-start=\"31\" data-end=\"684\"\u003e\n\u003cli data-start=\"31\" data-end=\"252\"\u003e\n\u003cp data-start=\"33\" data-end=\"252\"\u003e\u003cstrong data-start=\"33\" data-end=\"70\"\u003eHigh‑efficiency heat‑only design:\u003c\/strong\u003e The \u003cstrong data-start=\"75\" data-end=\"148\"\u003eWeil‑McLain ECO‑Tec 150‑H 150,000 BTU Heat‑Only Condensing Gas Boiler\u003c\/strong\u003e delivers \u003cstrong data-start=\"158\" data-end=\"190\"\u003emodern condensing efficiency\u003c\/strong\u003e to lower fuel costs while providing reliable hydronic heat.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"253\" data-end=\"407\"\u003e\n\u003cp data-start=\"255\" data-end=\"407\"\u003e\u003cstrong data-start=\"255\" data-end=\"275\"\u003eHeat‑only focus:\u003c\/strong\u003e Designed specifically for \u003cstrong data-start=\"302\" data-end=\"332\"\u003espace‑heating applications\u003c\/strong\u003e — ideal when domestic hot water is handled by a separate tank or heater.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"408\" data-end=\"531\"\u003e\n\u003cp data-start=\"410\" data-end=\"531\"\u003e\u003cstrong data-start=\"410\" data-end=\"442\"\u003eQuiet, dependable operation:\u003c\/strong\u003e Smooth combustion and advanced controls mean \u003cstrong data-start=\"488\" data-end=\"509\"\u003estable, even heat\u003c\/strong\u003e with minimal noise.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"532\" data-end=\"684\"\u003e\n\u003cp data-start=\"534\" data-end=\"684\"\u003e\u003cstrong data-start=\"534\" data-end=\"552\"\u003eDurable build:\u003c\/strong\u003e Engineered with corrosion‑resistant heat exchangers and service‑accessible components for long service life and easier maintenance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"686\" data-end=\"705\"\u003eProduct Q\u0026amp;A\u003c\/h5\u003e\n\u003cul data-start=\"706\" data-end=\"1483\"\u003e\n\u003cli data-start=\"706\" data-end=\"865\"\u003e\n\u003cp data-start=\"708\" data-end=\"865\"\u003e\u003cstrong data-start=\"708\" data-end=\"739\"\u003eWhat does “heat‑only” mean?\u003c\/strong\u003e\u003cbr data-start=\"739\" data-end=\"742\"\u003eIt \u003cem data-start=\"747\" data-end=\"776\"\u003eonly provides space heating\u003c\/em\u003e — domestic hot water must be supplied by a \u003cstrong data-start=\"820\" data-end=\"862\"\u003eseparate water heater or indirect tank\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"866\" data-end=\"1011\"\u003e\n\u003cp data-start=\"868\" data-end=\"1011\"\u003e\u003cstrong data-start=\"868\" data-end=\"894\"\u003eWhat fuel does it use?\u003c\/strong\u003e\u003cbr data-start=\"894\" data-end=\"897\"\u003e\u003cstrong data-start=\"899\" data-end=\"914\"\u003eNatural gas\u003c\/strong\u003e — propane conversion kits (installed by a licensed technician) are often available separately.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1012\" data-end=\"1172\"\u003e\n\u003cp data-start=\"1014\" data-end=\"1172\"\u003e\u003cstrong data-start=\"1014\" data-end=\"1040\"\u003eWhere is it best used?\u003c\/strong\u003e\u003cbr data-start=\"1040\" data-end=\"1043\"\u003eIdeal for \u003cstrong data-start=\"1055\" data-end=\"1126\"\u003esingle‑family homes, large residences, and light commercial systems\u003c\/strong\u003e requiring a dedicated hydronic heat source.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1173\" data-end=\"1350\"\u003e\n\u003cp data-start=\"1175\" data-end=\"1350\"\u003e\u003cstrong data-start=\"1175\" data-end=\"1202\"\u003eIs it energy efficient?\u003c\/strong\u003e\u003cbr data-start=\"1202\" data-end=\"1205\"\u003eYes — condensing technology extracts more heat from combustion than traditional boilers, improving overall \u003cstrong data-start=\"1314\" data-end=\"1347\"\u003eefficiency and operating cost\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1351\" data-end=\"1483\"\u003e\n\u003cp data-start=\"1353\" data-end=\"1483\"\u003e\u003cstrong data-start=\"1353\" data-end=\"1394\"\u003eWhat heating systems does it support?\u003c\/strong\u003e\u003cbr data-start=\"1394\" data-end=\"1397\"\u003eWorks with \u003cstrong data-start=\"1410\" data-end=\"1474\"\u003ebaseboard, radiant floor, and fan‑coil hydronic distribution\u003c\/strong\u003e systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"1485\" data-end=\"1509\"\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cul data-start=\"1510\" data-end=\"2316\"\u003e\n\u003cli data-start=\"1510\" data-end=\"1705\"\u003e\n\u003cp data-start=\"1512\" data-end=\"1705\"\u003e\u003cstrong data-start=\"1512\" data-end=\"1544\"\u003eAnnual professional service:\u003c\/strong\u003e Have a licensed HVAC technician inspect and tune the boiler annually before heating season — check burner performance, heat exchanger condition, and controls.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1706\" data-end=\"1833\"\u003e\n\u003cp data-start=\"1708\" data-end=\"1833\"\u003e\u003cstrong data-start=\"1708\" data-end=\"1735\"\u003eCheck condensate drain:\u003c\/strong\u003e Ensure condensate lines and traps are clear and correctly pitched to prevent clogs or freezing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1834\" data-end=\"1948\"\u003e\n\u003cp data-start=\"1836\" data-end=\"1948\"\u003e\u003cstrong data-start=\"1836\" data-end=\"1871\"\u003eMonitor pressure \u0026amp; water level:\u003c\/strong\u003e Maintain boiler pressure and check expansion tank function as recommended.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1949\" data-end=\"2065\"\u003e\n\u003cp data-start=\"1951\" data-end=\"2065\"\u003e\u003cstrong data-start=\"1951\" data-end=\"1984\"\u003eClean intake \u0026amp; exhaust paths:\u003c\/strong\u003e Keep vent openings free of debris and obstruction for safe combustion airflow.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2066\" data-end=\"2177\"\u003e\n\u003cp data-start=\"2068\" data-end=\"2177\"\u003e\u003cstrong data-start=\"2068\" data-end=\"2090\"\u003eInspect for leaks:\u003c\/strong\u003e Regularly check valves, fittings, and connections for signs of water or gas leakage.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2178\" data-end=\"2316\"\u003e\n\u003cp data-start=\"2180\" data-end=\"2316\"\u003e\u003cstrong data-start=\"2180\" data-end=\"2207\"\u003eMaintain water quality:\u003c\/strong\u003e Use recommended corrosion inhibitors and periodic system flushing to reduce scale and extend component life.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Weil-McLain","offers":[{"title":"Default Title","offer_id":45440111640767,"sku":"W383900155","price":3004.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/Weil-McLain-ECO-Tec-150-H-150000-BTU-Heat-Only-Condensing-Gas-Boiler-Front-View_28_3bd638a9-e5ff-4302-89b2-7946b5f4c7fa.jpg?v=1775023136"},{"product_id":"weil-mclain-cga-6-series-3-166000-btu-cast-iron-natural-gas-boiler","title":"Weil-McLain CGa-6 Series 3 166,000 BTU Cast Iron Natural Gas Boiler","description":"\u003ch2\u003eWeil-McLain CGa-6 Series 3 166,000 BTU Cast Iron Natural Gas Boiler\u003c\/h2\u003e\n\u003cp\u003eWeil-McLain is a leading North American Brand of hydronic comfort heating systems for residential, commercial and institutional buildings, since 1881. Contractors, engineers, architects, homeowners, and facility managers alike rely on Weil-McLain boilers for their comfort heating needs. Installed in homes, offices, schools, restaurants, hotels, and other facilities throughout North America, the Weil-McLain brand is among the most trusted and often used in the building industry.\u003c\/p\u003e\n\u003ch5\u003eFeatures\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eNatural draft, silent operation\u003c\/li\u003e\n\u003cli\u003eIntegrated Boiler Control Module with intermittent electronic ignition system and indicator\/diagnostic lights\u003c\/li\u003e\n\u003cli\u003eCompact design saves valuable living space\u003c\/li\u003e\n\u003cli\u003eBuilt-in low water cut off functionality\u003c\/li\u003e\n\u003cli\u003eStainless steel burners for quieter ignition, longer life, and improved combustion\u003c\/li\u003e\n\u003cli\u003eGas fired water boiler with cast iron sections\u003c\/li\u003e\n\u003cli\u003eEasily accessible controls, vertical flueways, and top cleaning for easy and quick servicing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"0\" data-end=\"30\"\u003eWhat Our Experts Think\u003c\/h5\u003e\n\u003cul data-start=\"31\" data-end=\"808\"\u003e\n\u003cli data-start=\"31\" data-end=\"304\"\u003e\n\u003cp data-start=\"33\" data-end=\"304\"\u003e\u003cstrong data-start=\"33\" data-end=\"69\"\u003eDependable hydronic performance:\u003c\/strong\u003e The \u003cstrong data-start=\"74\" data-end=\"145\"\u003eWeil‑McLain CGa‑6 Series 3 166,000 BTU Cast Iron Natural Gas Boiler\u003c\/strong\u003e delivers \u003cstrong data-start=\"155\" data-end=\"180\"\u003econsistent, even heat\u003c\/strong\u003e for \u003cstrong data-start=\"185\" data-end=\"249\"\u003elarger homes, multifamily units, and light commercial spaces\u003c\/strong\u003e, providing comfort and reliability you can count on.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"305\" data-end=\"495\"\u003e\n\u003cp data-start=\"307\" data-end=\"495\"\u003e\u003cstrong data-start=\"307\" data-end=\"341\"\u003eRugged cast‑iron construction:\u003c\/strong\u003e Heavy‑duty cast iron offers \u003cstrong data-start=\"370\" data-end=\"421\"\u003eexcellent thermal mass and corrosion resistance\u003c\/strong\u003e, helping the boiler maintain stable temperatures and long service life.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"496\" data-end=\"650\"\u003e\n\u003cp data-start=\"498\" data-end=\"650\"\u003e\u003cstrong data-start=\"498\" data-end=\"525\"\u003eStraightforward design:\u003c\/strong\u003e Proven conventional boiler architecture makes \u003cstrong data-start=\"572\" data-end=\"624\"\u003eservice, maintenance, and troubleshooting easier\u003c\/strong\u003e for HVAC professionals.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"651\" data-end=\"808\"\u003e\n\u003cp data-start=\"653\" data-end=\"808\"\u003e\u003cstrong data-start=\"653\" data-end=\"679\"\u003eTrusted brand history:\u003c\/strong\u003e Weil‑McLain’s CGa range has a strong reputation for \u003cstrong data-start=\"732\" data-end=\"767\"\u003edurable, long‑lasting operation\u003c\/strong\u003e in traditional hydronic heating systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"810\" data-end=\"829\"\u003eProduct Q\u0026amp;A\u003c\/h5\u003e\n\u003cul data-start=\"830\" data-end=\"1520\"\u003e\n\u003cli data-start=\"830\" data-end=\"989\"\u003e\n\u003cp data-start=\"832\" data-end=\"989\"\u003e\u003cstrong data-start=\"832\" data-end=\"864\"\u003eWhat type of boiler is this?\u003c\/strong\u003e\u003cbr data-start=\"864\" data-end=\"867\"\u003eA \u003cstrong data-start=\"871\" data-end=\"919\"\u003ecast‑iron, natural gas‑fired hydronic boiler\u003c\/strong\u003e that heats water for baseboards, radiators, or radiant floor loops.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"990\" data-end=\"1161\"\u003e\n\u003cp data-start=\"992\" data-end=\"1161\"\u003e\u003cstrong data-start=\"992\" data-end=\"1025\"\u003eWhat is the heating capacity?\u003c\/strong\u003e\u003cbr data-start=\"1025\" data-end=\"1028\"\u003e\u003cstrong data-start=\"1030\" data-end=\"1050\"\u003e166,000 BTU\/hour\u003c\/strong\u003e — suitable for \u003cstrong data-start=\"1066\" data-end=\"1096\"\u003emedium‑large heating loads\u003c\/strong\u003e in residential, multifamily, or light commercial applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1162\" data-end=\"1348\"\u003e\n\u003cp data-start=\"1164\" data-end=\"1348\"\u003e\u003cstrong data-start=\"1164\" data-end=\"1200\"\u003eDoes it require special venting?\u003c\/strong\u003e\u003cbr data-start=\"1200\" data-end=\"1203\"\u003eYes — like all conventional gas boilers, it needs \u003cstrong data-start=\"1255\" data-end=\"1289\"\u003eproper chimney or flue venting\u003c\/strong\u003e installed per local codes and manufacturer instructions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1349\" data-end=\"1520\"\u003e\n\u003cp data-start=\"1351\" data-end=\"1520\"\u003e\u003cstrong data-start=\"1351\" data-end=\"1393\"\u003eIs this suitable for new construction?\u003c\/strong\u003e\u003cbr data-start=\"1393\" data-end=\"1396\"\u003eYes — especially in systems where \u003cstrong data-start=\"1432\" data-end=\"1464\"\u003erobust cast‑iron performance\u003c\/strong\u003e is preferred and condensing efficiency is not required.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"1522\" data-end=\"1546\"\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cul data-start=\"1547\" data-end=\"2336\"\u003e\n\u003cli data-start=\"1547\" data-end=\"1732\"\u003e\n\u003cp data-start=\"1549\" data-end=\"1732\"\u003e\u003cstrong data-start=\"1549\" data-end=\"1584\"\u003eAnnual professional inspection:\u003c\/strong\u003e Have a licensed HVAC technician check the boiler before each heating season — examining the \u003cstrong data-start=\"1677\" data-end=\"1729\"\u003eburner, heat exchanger, combustion, and controls\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1733\" data-end=\"1875\"\u003e\n\u003cp data-start=\"1735\" data-end=\"1875\"\u003e\u003cstrong data-start=\"1735\" data-end=\"1772\"\u003eMonitor pressure and water level:\u003c\/strong\u003e Keep system pressure within manufacturer‑recommended ranges and verify \u003cstrong data-start=\"1844\" data-end=\"1872\"\u003eexpansion tank condition\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1876\" data-end=\"1977\"\u003e\n\u003cp data-start=\"1878\" data-end=\"1977\"\u003e\u003cstrong data-start=\"1878\" data-end=\"1902\"\u003eBleed heat circuits:\u003c\/strong\u003e Release trapped air from radiators or baseboards to ensure even heating.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1978\" data-end=\"2098\"\u003e\n\u003cp data-start=\"1980\" data-end=\"2098\"\u003e\u003cstrong data-start=\"1980\" data-end=\"2000\"\u003eInspect venting:\u003c\/strong\u003e Ensure chimney or flue paths remain \u003cstrong data-start=\"2037\" data-end=\"2066\"\u003eclear and properly sealed\u003c\/strong\u003e to prevent combustion issues.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2099\" data-end=\"2211\"\u003e\n\u003cp data-start=\"2101\" data-end=\"2211\"\u003e\u003cstrong data-start=\"2101\" data-end=\"2121\"\u003eCheck for leaks:\u003c\/strong\u003e Regularly inspect around valves, connections, and pipe joints for water or gas leakage.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2212\" data-end=\"2336\"\u003e\n\u003cp data-start=\"2214\" data-end=\"2336\"\u003e\u003cstrong data-start=\"2214\" data-end=\"2243\"\u003ePeriodic system flushing:\u003c\/strong\u003e Flushing helps remove sediment and scale, improving efficiency and extending component life.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Weil-McLain","offers":[{"title":"Default Title","offer_id":45440111673535,"sku":"W381359078","price":3134.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/Weil-McLain-CGa-6-Series-3-166000-BTU-Cast-Iron-Natural-Gas-Boiler-Main-Image_29.jpg?v=1775023138"},{"product_id":"weil-mclain-eco-tec-110-h-110000-btu-heat-only-condensing-gas-boiler","title":"Weil-McLain ECO Tec 110-H 110,000 BTU Heat-Only Condensing Gas Boiler","description":"\u003ch2\u003eWeil-McLain ECO Tec 110-H 110,000 BTU Heat-Only Condensing Gas Boiler\u003c\/h2\u003e\n\u003cp\u003eWeil-McLain is a leading North American Brand of hydronic comfort heating systems for residential, commercial and institutional buildings, since 1881. Contractors, engineers, architects, homeowners, and facility managers alike rely on Weil-McLain boilers for their comfort heating needs. Installed in homes, offices, schools, restaurants, hotels, and other facilities throughout North America, the Weil-McLain brand is among the most trusted and often used in the building industry.\u003c\/p\u003e\n\u003ch5\u003eFeatures\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eSpacious cabinet allows full access to all critical parts that are strategically positioned\u003c\/li\u003e\n\u003cli\u003eDurable, high-grade stainless steel firetube primary heat exchanger maximizes heat transfer, and its vertical design promotes self-rinsing during operation\u003c\/li\u003e\n\u003cli\u003eCorrosion-resistant polypropylene heat exchanger base protects against acidic condensate\u003c\/li\u003e\n\u003cli\u003eSound-dampening air silencer for whisper-quiet operation\u003c\/li\u003e\n\u003cli\u003eInsulated heat exchanger and DHW pipes further reduce heat loss and noise\u003c\/li\u003e\n\u003cli\u003eSealed cabinet preheats incoming air for smooth starting, and does not pull any potential outside debris directly into blower and burner\u003c\/li\u003e\n\u003cli\u003eRemovable, unique control terminal blocks eliminate potential field wiring errors\u003c\/li\u003e\n\u003cli\u003eBuilt-in, variable speed ECM circulator saves electrical energy and installation time\u003c\/li\u003e\n\u003cli\u003e3-in-1 universal air and vent adapters readily accept different types of pipe materials along with built-in test ports to aid combustion testing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"0\" data-end=\"30\"\u003eWhat Our Experts Think\u003c\/h5\u003e\n\u003cul data-start=\"31\" data-end=\"789\"\u003e\n\u003cli data-start=\"31\" data-end=\"283\"\u003e\n\u003cp data-start=\"33\" data-end=\"283\"\u003e\u003cstrong data-start=\"33\" data-end=\"71\"\u003eHigh‑efficiency condensing design:\u003c\/strong\u003e The \u003cstrong data-start=\"76\" data-end=\"149\"\u003eWeil‑McLain ECO‑Tec 110‑H 110,000 BTU Heat‑Only Condensing Gas Boiler\u003c\/strong\u003e delivers \u003cstrong data-start=\"159\" data-end=\"184\"\u003estrong energy savings\u003c\/strong\u003e by capturing extra heat from exhaust gases, boosting efficiency compared to traditional boilers.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"284\" data-end=\"434\"\u003e\n\u003cp data-start=\"286\" data-end=\"434\"\u003e\u003cstrong data-start=\"286\" data-end=\"306\"\u003eHeat‑only focus:\u003c\/strong\u003e Designed exclusively for \u003cstrong data-start=\"332\" data-end=\"349\"\u003espace heating\u003c\/strong\u003e, this model pairs well with separate domestic hot‑water systems or indirect tanks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"435\" data-end=\"597\"\u003e\n\u003cp data-start=\"437\" data-end=\"597\"\u003e\u003cstrong data-start=\"437\" data-end=\"467\"\u003eQuiet, reliable operation:\u003c\/strong\u003e Smooth combustion and advanced controls provide consistent hydronic heat with low operational noise and dependable performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"598\" data-end=\"789\"\u003e\n\u003cp data-start=\"600\" data-end=\"789\"\u003e\u003cstrong data-start=\"600\" data-end=\"625\"\u003eDurable construction:\u003c\/strong\u003e Engineered for long service life with corrosion‑resistant heat exchangers and service‑accessible components — a solid choice for homes or light commercial systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"791\" data-end=\"810\"\u003eProduct Q\u0026amp;A\u003c\/h5\u003e\n\u003cul data-start=\"811\" data-end=\"1417\"\u003e\n\u003cli data-start=\"811\" data-end=\"964\"\u003e\n\u003cp data-start=\"813\" data-end=\"964\"\u003e\u003cstrong data-start=\"813\" data-end=\"844\"\u003eWhat does “heat‑only” mean?\u003c\/strong\u003e\u003cbr data-start=\"844\" data-end=\"847\"\u003eIt \u003cem data-start=\"852\" data-end=\"881\"\u003eonly provides space heating\u003c\/em\u003e — domestic hot water is handled by a \u003cstrong data-start=\"919\" data-end=\"944\"\u003eseparate water heater\u003c\/strong\u003e or indirect tank.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"965\" data-end=\"1091\"\u003e\n\u003cp data-start=\"967\" data-end=\"1091\"\u003e\u003cstrong data-start=\"967\" data-end=\"993\"\u003eWhat fuel does it use?\u003c\/strong\u003e\u003cbr data-start=\"993\" data-end=\"996\"\u003eNatural gas; propane conversion kits are available through qualified technicians if needed.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1092\" data-end=\"1259\"\u003e\n\u003cp data-start=\"1094\" data-end=\"1259\"\u003e\u003cstrong data-start=\"1094\" data-end=\"1147\"\u003eWhat heating distribution systems work with this?\u003c\/strong\u003e\u003cbr data-start=\"1147\" data-end=\"1150\"\u003eCompatible with \u003cstrong data-start=\"1168\" data-end=\"1229\"\u003ehydronic baseboards, radiant floor systems, and fan coils\u003c\/strong\u003e tied into a hot‑water loop.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1260\" data-end=\"1417\"\u003e\n\u003cp data-start=\"1262\" data-end=\"1417\"\u003e\u003cstrong data-start=\"1262\" data-end=\"1290\"\u003eIs this high efficiency?\u003c\/strong\u003e\u003cbr data-start=\"1290\" data-end=\"1293\"\u003eYes — condensing technology extracts more heat from the combustion process, increasing efficiency and lowering fuel costs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"1419\" data-end=\"1443\"\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cul data-start=\"1444\" data-end=\"2220\"\u003e\n\u003cli data-start=\"1444\" data-end=\"1616\"\u003e\n\u003cp data-start=\"1446\" data-end=\"1616\"\u003e\u003cstrong data-start=\"1446\" data-end=\"1478\"\u003eAnnual professional service:\u003c\/strong\u003e Have a licensed HVAC technician inspect and tune the boiler before each heating season — checking burner, heat exchanger, and controls.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1617\" data-end=\"1749\"\u003e\n\u003cp data-start=\"1619\" data-end=\"1749\"\u003e\u003cstrong data-start=\"1619\" data-end=\"1646\"\u003eCheck condensate drain:\u003c\/strong\u003e Ensure condensate lines and traps remain clear and properly pitched to avoid clogs or freeze issues.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1750\" data-end=\"1852\"\u003e\n\u003cp data-start=\"1752\" data-end=\"1852\"\u003e\u003cstrong data-start=\"1752\" data-end=\"1787\"\u003eMonitor pressure \u0026amp; water level:\u003c\/strong\u003e Maintain correct boiler pressure and expansion tank condition.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1853\" data-end=\"1973\"\u003e\n\u003cp data-start=\"1855\" data-end=\"1973\"\u003e\u003cstrong data-start=\"1855\" data-end=\"1895\"\u003eClean intake \u0026amp; exhaust terminations:\u003c\/strong\u003e Keep vent openings and combustion air paths free of debris and obstruction.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1974\" data-end=\"2088\"\u003e\n\u003cp data-start=\"1976\" data-end=\"2088\"\u003e\u003cstrong data-start=\"1976\" data-end=\"1998\"\u003eInspect for leaks:\u003c\/strong\u003e Periodically check around valves, fittings, and piping for signs of water or gas leaks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2089\" data-end=\"2220\"\u003e\n\u003cp data-start=\"2091\" data-end=\"2220\"\u003e\u003cstrong data-start=\"2091\" data-end=\"2109\"\u003eWater quality:\u003c\/strong\u003e Use recommended corrosion inhibitors and schedule periodic flushing to reduce scale and preserve efficiency.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Weil-McLain","offers":[{"title":"Default Title","offer_id":45440111706303,"sku":"W383900154","price":2648.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/Weil-McLain-ECO-Tec-110-H-110000-BTU-Heat-Only-Condensing-Gas-Boiler-Front-View_25.jpg?v=1775023140"},{"product_id":"weil-mclain-cga-8-series-3-233000-btu-cast-iron-natural-gas-boiler","title":"Weil-McLain CGa-8 Series 3 233,000 BTU Cast Iron Natural Gas Boiler","description":"\u003ch2\u003eWeil-McLain CGa-8 Series 3 233,000 BTU Cast Iron Natural Gas Boiler\u003c\/h2\u003e\n\u003cp\u003eWeil-McLain is a leading North American Brand of hydronic comfort heating systems for residential, commercial and institutional buildings, since 1881. Contractors, engineers, architects, homeowners, and facility managers alike rely on Weil-McLain boilers for their comfort heating needs. Installed in homes, offices, schools, restaurants, hotels, and other facilities throughout North America, the Weil-McLain brand is among the most trusted and often used in the building industry.\u003c\/p\u003e\n\u003ch5\u003eFeatures\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eNatural draft, silent operation\u003c\/li\u003e\n\u003cli\u003eIntegrated Boiler Control Module with intermittent electronic ignition system and indicator\/diagnostic lights\u003c\/li\u003e\n\u003cli\u003eCompact design saves valuable living space\u003c\/li\u003e\n\u003cli\u003eBuilt-in low water cut off functionality\u003c\/li\u003e\n\u003cli\u003eStainless steel burners for quieter ignition, longer life, and improved combustion\u003c\/li\u003e\n\u003cli\u003eGas fired water boiler with cast iron sections\u003c\/li\u003e\n\u003cli\u003eEasily accessible controls, vertical flueways, and top cleaning for easy and quick servicing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"0\" data-end=\"30\"\u003eWhat Our Experts Think\u003c\/h5\u003e\n\u003cul data-start=\"31\" data-end=\"814\"\u003e\n\u003cli data-start=\"31\" data-end=\"289\"\u003e\n\u003cp data-start=\"33\" data-end=\"289\"\u003e\u003cstrong data-start=\"33\" data-end=\"60\"\u003eReliable hydronic heat:\u003c\/strong\u003e The \u003cstrong data-start=\"65\" data-end=\"136\"\u003eWeil‑McLain CGa‑8 Series 3 233,000 BTU Cast Iron Natural Gas Boiler\u003c\/strong\u003e delivers \u003cstrong data-start=\"146\" data-end=\"175\"\u003econsistent, steady warmth\u003c\/strong\u003e — ideal for \u003cstrong data-start=\"188\" data-end=\"257\"\u003elarge homes, multifamily properties, and light commercial systems\u003c\/strong\u003e with substantial heat demand.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"290\" data-end=\"486\"\u003e\n\u003cp data-start=\"292\" data-end=\"486\"\u003e\u003cstrong data-start=\"292\" data-end=\"325\"\u003eTough cast‑iron construction:\u003c\/strong\u003e Durable cast‑iron sections resist corrosion and provide \u003cstrong data-start=\"382\" data-end=\"408\"\u003eexcellent thermal mass\u003c\/strong\u003e, helping the boiler absorb and distribute heat evenly with reduced cycling.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"487\" data-end=\"636\"\u003e\n\u003cp data-start=\"489\" data-end=\"636\"\u003e\u003cstrong data-start=\"489\" data-end=\"534\"\u003eStraightforward, service‑friendly design:\u003c\/strong\u003e Proven, accessible components make routine maintenance and servicing easier for HVAC professionals.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"637\" data-end=\"814\"\u003e\n\u003cp data-start=\"639\" data-end=\"814\"\u003e\u003cstrong data-start=\"639\" data-end=\"669\"\u003eTrusted brand performance:\u003c\/strong\u003e Weil‑McLain’s CGa series has a strong reputation for \u003cstrong data-start=\"723\" data-end=\"773\"\u003elong‑term reliability and dependable operation\u003c\/strong\u003e in conventional gas boiler applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"816\" data-end=\"835\"\u003eProduct Q\u0026amp;A\u003c\/h5\u003e\n\u003cul data-start=\"836\" data-end=\"1440\"\u003e\n\u003cli data-start=\"836\" data-end=\"997\"\u003e\n\u003cp data-start=\"838\" data-end=\"997\"\u003e\u003cstrong data-start=\"838\" data-end=\"870\"\u003eWhat type of boiler is this?\u003c\/strong\u003e\u003cbr data-start=\"870\" data-end=\"873\"\u003eA \u003cstrong data-start=\"877\" data-end=\"925\"\u003ecast‑iron, natural gas‑fired hydronic boiler\u003c\/strong\u003e that heats water for baseboards, radiators, or radiant floor systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"998\" data-end=\"1107\"\u003e\n\u003cp data-start=\"1000\" data-end=\"1107\"\u003e\u003cstrong data-start=\"1000\" data-end=\"1028\"\u003eWhat is the heat output?\u003c\/strong\u003e\u003cbr data-start=\"1028\" data-end=\"1031\"\u003e\u003cstrong data-start=\"1033\" data-end=\"1053\"\u003e233,000 BTU\/hour\u003c\/strong\u003e — well‑suited for \u003cstrong data-start=\"1072\" data-end=\"1104\"\u003elarge building heating loads\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1108\" data-end=\"1293\"\u003e\n\u003cp data-start=\"1110\" data-end=\"1293\"\u003e\u003cstrong data-start=\"1110\" data-end=\"1146\"\u003eDoes it require special venting?\u003c\/strong\u003e\u003cbr data-start=\"1146\" data-end=\"1149\"\u003eYes — like all conventional gas boilers, it needs \u003cstrong data-start=\"1201\" data-end=\"1235\"\u003eproper chimney or flue venting\u003c\/strong\u003e installed per local code and manufacturer requirements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1294\" data-end=\"1440\"\u003e\n\u003cp data-start=\"1296\" data-end=\"1440\"\u003e\u003cstrong data-start=\"1296\" data-end=\"1335\"\u003eIs this good for new installations?\u003c\/strong\u003e\u003cbr data-start=\"1335\" data-end=\"1338\"\u003eYes — especially where \u003cstrong data-start=\"1363\" data-end=\"1404\"\u003edurable, robust cast‑iron performance\u003c\/strong\u003e is preferred over condensing units.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"1442\" data-end=\"1466\"\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cul data-start=\"1467\" data-end=\"2188\"\u003e\n\u003cli data-start=\"1467\" data-end=\"1617\"\u003e\n\u003cp data-start=\"1469\" data-end=\"1617\"\u003e\u003cstrong data-start=\"1469\" data-end=\"1504\"\u003eAnnual professional inspection:\u003c\/strong\u003e Have a licensed HVAC technician check the boiler each year — burner, heat exchanger, combustion, and controls.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1618\" data-end=\"1746\"\u003e\n\u003cp data-start=\"1620\" data-end=\"1746\"\u003e\u003cstrong data-start=\"1620\" data-end=\"1655\"\u003eMonitor pressure \u0026amp; water level:\u003c\/strong\u003e Maintain system pressure within recommended ranges and inspect expansion tank condition.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1747\" data-end=\"1855\"\u003e\n\u003cp data-start=\"1749\" data-end=\"1855\"\u003e\u003cstrong data-start=\"1749\" data-end=\"1782\"\u003eBleed air from heat circuits:\u003c\/strong\u003e Release trapped air in radiators or baseboards to ensure even heating.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1856\" data-end=\"1961\"\u003e\n\u003cp data-start=\"1858\" data-end=\"1961\"\u003e\u003cstrong data-start=\"1858\" data-end=\"1878\"\u003eInspect venting:\u003c\/strong\u003e Ensure chimney\/flue paths and intake air openings are clear and properly sealed.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1962\" data-end=\"2081\"\u003e\n\u003cp data-start=\"1964\" data-end=\"2081\"\u003e\u003cstrong data-start=\"1964\" data-end=\"1984\"\u003eCheck for leaks:\u003c\/strong\u003e Periodically look for signs of water or gas leaks around valves, joints, and pipe connections.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Weil-McLain","offers":[{"title":"Default Title","offer_id":45440112099519,"sku":"W381359082","price":3701.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/Weil-McLain-CGa-8-Series-3-233000-BTU-Cast-Iron-Natural-Gas-Boiler-Main-Image_14.jpg?v=1775023150"},{"product_id":"weil-mclain-ultra-series-4-399000-btu-condensing-gas-boiler","title":"Weil-McLain Ultra Series 4 399,000 BTU Condensing Gas Boiler","description":"\u003ch2\u003eWeil-McLain Ultra Series 4 399,000 BTU Condensing Gas Boiler\u003c\/h2\u003e\n\u003cp\u003eWeil-McLain is a leading North American Brand of hydronic comfort heating systems for residential, commercial and institutional buildings, since 1881. Contractors, engineers, architects, homeowners, and facility managers alike rely on Weil-McLain boilers for their comfort heating needs. Installed in homes, offices, schools, restaurants, hotels, and other facilities throughout North America, the Weil-McLain brand is among the most trusted and often used in the building industry.\u003c\/p\u003e\n\u003ch5\u003eFeatures\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eCast aluminum coated heat exchanger\u003c\/li\u003e\n\u003cli\u003eDesigned to operate in low temperature condensing applications\u003c\/li\u003e\n\u003cli\u003eOutdoor reset and domestic hot water priority\u003c\/li\u003e\n\u003cli\u003eModulates with 5:1 turn-down ratio\u003c\/li\u003e\n\u003cli\u003eHigh grade stainless steel burner features quiet operation\u003c\/li\u003e\n\u003cli\u003eU-Control gives the power for easy set-up and maintenance\u003c\/li\u003e\n\u003cli\u003eMultiple set-up and zone options\u003c\/li\u003e\n\u003cli\u003eSystem sensing recognizes system and outdoor temperatures\u003c\/li\u003e\n\u003cli\u003eTemperature management for up to three different set-points\u003c\/li\u003e\n\u003cli\u003eControl multiple boilers from a single control panel\u003c\/li\u003e\n\u003cli\u003eStandard screen messages provide service alerts and maintenance reminders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"0\" data-end=\"30\"\u003eWhat Our Experts Think\u003c\/h5\u003e\n\u003cul data-start=\"31\" data-end=\"745\"\u003e\n\u003cli data-start=\"31\" data-end=\"262\"\u003e\n\u003cp data-start=\"33\" data-end=\"262\"\u003e\u003cstrong data-start=\"33\" data-end=\"57\"\u003eTop‑tier efficiency:\u003c\/strong\u003e The \u003cstrong data-start=\"62\" data-end=\"126\"\u003eWeil‑McLain Ultra Series 4 399,000 BTU Condensing Gas Boiler\u003c\/strong\u003e delivers \u003cstrong data-start=\"136\" data-end=\"179\"\u003eindustry‑leading condensing performance\u003c\/strong\u003e (typically up to ~95% AFUE), maximizing heat output while minimizing fuel costs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"263\" data-end=\"440\"\u003e\n\u003cp data-start=\"265\" data-end=\"440\"\u003e\u003cstrong data-start=\"265\" data-end=\"291\"\u003eHigh heating capacity:\u003c\/strong\u003e With \u003cstrong data-start=\"297\" data-end=\"314\"\u003e399,000 BTU\/h\u003c\/strong\u003e, this model powers \u003cstrong data-start=\"334\" data-end=\"401\"\u003elarge homes, multifamily buildings, and light commercial spaces\u003c\/strong\u003e requiring substantial hydronic heat.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"441\" data-end=\"588\"\u003e\n\u003cp data-start=\"443\" data-end=\"588\"\u003e\u003cstrong data-start=\"443\" data-end=\"471\"\u003eSmooth, quiet operation:\u003c\/strong\u003e Advanced burner and heat‑transfer design provide stable combustion with reduced noise and more even heat delivery.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"589\" data-end=\"745\"\u003e\n\u003cp data-start=\"591\" data-end=\"745\"\u003e\u003cstrong data-start=\"591\" data-end=\"622\"\u003eDurable \u0026amp; service‑friendly:\u003c\/strong\u003e Corrosion‑resistant heat exchanger and accessible service points support long life and easier maintenance for technicians.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"747\" data-end=\"766\"\u003eProduct Q\u0026amp;A\u003c\/h5\u003e\n\u003cul data-start=\"767\" data-end=\"1597\"\u003e\n\u003cli data-start=\"767\" data-end=\"937\"\u003e\n\u003cp data-start=\"769\" data-end=\"937\"\u003e\u003cstrong data-start=\"769\" data-end=\"801\"\u003eWhat type of boiler is this?\u003c\/strong\u003e\u003cbr data-start=\"801\" data-end=\"804\"\u003eA \u003cstrong data-start=\"808\" data-end=\"849\"\u003ehigh‑efficiency condensing gas boiler\u003c\/strong\u003e that uses a secondary heat exchanger to extract extra energy from combustion exhaust.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"938\" data-end=\"1118\"\u003e\n\u003cp data-start=\"940\" data-end=\"1118\"\u003e\u003cstrong data-start=\"940\" data-end=\"966\"\u003eWhere is it best used?\u003c\/strong\u003e\u003cbr data-start=\"966\" data-end=\"969\"\u003eIdeal for \u003cstrong data-start=\"981\" data-end=\"1083\"\u003elarge residential properties, multifamily units, schools, offices, and light commercial facilities\u003c\/strong\u003e with significant heating demand.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1119\" data-end=\"1277\"\u003e\n\u003cp data-start=\"1121\" data-end=\"1277\"\u003e\u003cstrong data-start=\"1121\" data-end=\"1162\"\u003eWhat heating systems does it support?\u003c\/strong\u003e\u003cbr data-start=\"1162\" data-end=\"1165\"\u003eWorks with \u003cstrong data-start=\"1178\" data-end=\"1274\"\u003ehydronic baseboard, radiant floor systems, fan coils, and other hot‑water distribution loops\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1278\" data-end=\"1417\"\u003e\n\u003cp data-start=\"1280\" data-end=\"1417\"\u003e\u003cstrong data-start=\"1280\" data-end=\"1306\"\u003eWhat fuel does it use?\u003c\/strong\u003e\u003cbr data-start=\"1306\" data-end=\"1309\"\u003eNatural gas (propane conversion kits may be available from Weil‑McLain via a qualified HVAC technician).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1418\" data-end=\"1597\"\u003e\n\u003cp data-start=\"1420\" data-end=\"1597\"\u003e\u003cstrong data-start=\"1420\" data-end=\"1453\"\u003eDoes it need special venting?\u003c\/strong\u003e\u003cbr data-start=\"1453\" data-end=\"1456\"\u003eYes — condensing boilers typically use \u003cstrong data-start=\"1497\" data-end=\"1534\"\u003ePVC\/CPVC or polypropylene venting\u003c\/strong\u003e because of lower exhaust temperatures and condensate handling.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"1599\" data-end=\"1623\"\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cul data-start=\"1624\" data-end=\"2460\"\u003e\n\u003cli data-start=\"1624\" data-end=\"1824\"\u003e\n\u003cp data-start=\"1626\" data-end=\"1824\"\u003e\u003cstrong data-start=\"1626\" data-end=\"1658\"\u003eAnnual professional service:\u003c\/strong\u003e Have a licensed HVAC technician inspect and tune the boiler before each heating season — checking the burner, heat exchanger, controls, and combustion performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1825\" data-end=\"1969\"\u003e\n\u003cp data-start=\"1827\" data-end=\"1969\"\u003e\u003cstrong data-start=\"1827\" data-end=\"1857\"\u003eCheck condensate drainage:\u003c\/strong\u003e Make sure condensate outlets and trap lines are clear and properly pitched to avoid buildup or freeze issues.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1970\" data-end=\"2079\"\u003e\n\u003cp data-start=\"1972\" data-end=\"2079\"\u003e\u003cstrong data-start=\"1972\" data-end=\"2000\"\u003eMonitor system pressure:\u003c\/strong\u003e Maintain proper boiler pressure and expansion tank condition as recommended.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2080\" data-end=\"2195\"\u003e\n\u003cp data-start=\"2082\" data-end=\"2195\"\u003e\u003cstrong data-start=\"2082\" data-end=\"2122\"\u003eClean intake \u0026amp; exhaust terminations:\u003c\/strong\u003e Keep vents free of debris and obstruction for safe combustion airflow.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2196\" data-end=\"2310\"\u003e\n\u003cp data-start=\"2198\" data-end=\"2310\"\u003e\u003cstrong data-start=\"2198\" data-end=\"2220\"\u003eInspect for leaks:\u003c\/strong\u003e Check around valves, fittings, and piping periodically for signs of water or gas leaks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2311\" data-end=\"2460\"\u003e\n\u003cp data-start=\"2313\" data-end=\"2460\"\u003e\u003cstrong data-start=\"2313\" data-end=\"2340\"\u003eMaintain water quality:\u003c\/strong\u003e Use recommended corrosion inhibitors and schedule periodic system flushing to reduce scale and extend component life.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Weil-McLain","offers":[{"title":"Default Title","offer_id":45440112165055,"sku":"W383500738","price":6378.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/Weil-McLain-Ultra-Series-4-399000-BTU-Condensing-Gas-Boiler-Main-Image_22.jpg?v=1775023152"},{"product_id":"weil-mclain-cga-25-series-3-38000-btu-cast-iron-natural-gas-boiler","title":"Weil-McLain CGa-25 Series 3 38,000 BTU Cast Iron Natural Gas Boiler","description":"\u003ch2\u003eWeil-McLain CGa-25 Series 3 38,000 BTU Cast Iron Natural Gas Boiler\u003c\/h2\u003e\n\u003cp\u003eWeil-McLain is a leading North American Brand of hydronic comfort heating systems for residential, commercial and institutional buildings, since 1881. Contractors, engineers, architects, homeowners, and facility managers alike rely on Weil-McLain boilers for their comfort heating needs. Installed in homes, offices, schools, restaurants, hotels, and other facilities throughout North America, the Weil-McLain brand is among the most trusted and often used in the building industry.\u003c\/p\u003e\n\u003ch5\u003eFeatures\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eNatural draft, silent operation\u003c\/li\u003e\n\u003cli\u003eIntegrated Boiler Control Module with intermittent electronic ignition system and indicator\/diagnostic lights\u003c\/li\u003e\n\u003cli\u003eCompact design saves valuable living space\u003c\/li\u003e\n\u003cli\u003eBuilt-in low water cut off functionality\u003c\/li\u003e\n\u003cli\u003eStainless steel burners for quieter ignition, longer life, and improved combustion\u003c\/li\u003e\n\u003cli\u003eGas fired water boiler with cast iron sections\u003c\/li\u003e\n\u003cli\u003eEasily accessible controls, vertical flueways, and top cleaning for easy and quick servicing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"0\" data-end=\"30\"\u003eWhat Our Experts Think\u003c\/h5\u003e\n\u003cul data-start=\"31\" data-end=\"755\"\u003e\n\u003cli data-start=\"31\" data-end=\"284\"\u003e\n\u003cp data-start=\"33\" data-end=\"284\"\u003e\u003cstrong data-start=\"33\" data-end=\"63\"\u003eReliable everyday heating:\u003c\/strong\u003e The \u003cstrong data-start=\"68\" data-end=\"139\"\u003eWeil‑McLain CGa‑25 Series 3 38,000 BTU Cast Iron Natural Gas Boiler\u003c\/strong\u003e delivers \u003cstrong data-start=\"149\" data-end=\"183\"\u003econsistent, even hydronic heat\u003c\/strong\u003e — ideal for \u003cstrong data-start=\"196\" data-end=\"258\"\u003esmall to mid‑size homes, cottages, or supplemental systems\u003c\/strong\u003e with lower heat demand.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"285\" data-end=\"461\"\u003e\n\u003cp data-start=\"287\" data-end=\"461\"\u003e\u003cstrong data-start=\"287\" data-end=\"314\"\u003eProven cast‑iron build:\u003c\/strong\u003e Cast‑iron sections offer \u003cstrong data-start=\"340\" data-end=\"391\"\u003eexcellent thermal mass and corrosion resistance\u003c\/strong\u003e, helping the boiler deliver stable warmth and long‑lasting service.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"462\" data-end=\"610\"\u003e\n\u003cp data-start=\"464\" data-end=\"610\"\u003e\u003cstrong data-start=\"464\" data-end=\"499\"\u003eStraightforward and dependable:\u003c\/strong\u003e Classic, no‑nonsense design with accessible components makes service and maintenance easier for technicians.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"611\" data-end=\"755\"\u003e\n\u003cp data-start=\"613\" data-end=\"755\"\u003e\u003cstrong data-start=\"613\" data-end=\"634\"\u003eTrusted heritage:\u003c\/strong\u003e Weil‑McLain’s CGa series has a strong track record for \u003cstrong data-start=\"690\" data-end=\"723\"\u003edurable, dependable operation\u003c\/strong\u003e across many years of field use.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"757\" data-end=\"776\"\u003eProduct Q\u0026amp;A\u003c\/h5\u003e\n\u003cul data-start=\"777\" data-end=\"1428\"\u003e\n\u003cli data-start=\"777\" data-end=\"946\"\u003e\n\u003cp data-start=\"779\" data-end=\"946\"\u003e\u003cstrong data-start=\"779\" data-end=\"811\"\u003eWhat type of boiler is this?\u003c\/strong\u003e\u003cbr data-start=\"811\" data-end=\"814\"\u003eA \u003cstrong data-start=\"818\" data-end=\"866\"\u003ecast‑iron, natural gas‑fired hydronic boiler\u003c\/strong\u003e designed for space heating via baseboards, radiators, or radiant floor loops.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"947\" data-end=\"1100\"\u003e\n\u003cp data-start=\"949\" data-end=\"1100\"\u003e\u003cstrong data-start=\"949\" data-end=\"977\"\u003eWhat is the heat output?\u003c\/strong\u003e\u003cbr data-start=\"977\" data-end=\"980\"\u003e\u003cstrong data-start=\"982\" data-end=\"1001\"\u003e38,000 BTU\/hour\u003c\/strong\u003e — well‑suited for \u003cstrong data-start=\"1020\" data-end=\"1067\"\u003esmaller homes or lower load heating systems\u003c\/strong\u003e where moderate heat is needed.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1101\" data-end=\"1266\"\u003e\n\u003cp data-start=\"1103\" data-end=\"1266\"\u003e\u003cstrong data-start=\"1103\" data-end=\"1139\"\u003eDoes it require special venting?\u003c\/strong\u003e\u003cbr data-start=\"1139\" data-end=\"1142\"\u003eYes — conventional gas boilers need \u003cstrong data-start=\"1180\" data-end=\"1209\"\u003eproper chimney or venting\u003c\/strong\u003e in accordance with local codes and manufacturer specs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1267\" data-end=\"1428\"\u003e\n\u003cp data-start=\"1269\" data-end=\"1428\"\u003e\u003cstrong data-start=\"1269\" data-end=\"1309\"\u003eCan it be used for new construction?\u003c\/strong\u003e\u003cbr data-start=\"1309\" data-end=\"1312\"\u003eYes — especially where a \u003cstrong data-start=\"1339\" data-end=\"1377\"\u003ecompact, reliable cast‑iron boiler\u003c\/strong\u003e is preferred for heating efficiency and longevity.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"1430\" data-end=\"1454\"\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cul data-start=\"1455\" data-end=\"2225\"\u003e\n\u003cli data-start=\"1455\" data-end=\"1638\"\u003e\n\u003cp data-start=\"1457\" data-end=\"1638\"\u003e\u003cstrong data-start=\"1457\" data-end=\"1489\"\u003eAnnual professional service:\u003c\/strong\u003e Schedule a licensed HVAC technician to inspect and tune the boiler before each heating season — checking the burner, heat exchanger, and controls.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1639\" data-end=\"1771\"\u003e\n\u003cp data-start=\"1641\" data-end=\"1771\"\u003e\u003cstrong data-start=\"1641\" data-end=\"1683\"\u003eMonitor system pressure \u0026amp; water level:\u003c\/strong\u003e Keep the pressure within recommended ranges and check the expansion tank’s condition.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1772\" data-end=\"1890\"\u003e\n\u003cp data-start=\"1774\" data-end=\"1890\"\u003e\u003cstrong data-start=\"1774\" data-end=\"1791\"\u003eAir bleeding:\u003c\/strong\u003e Release trapped air from baseboards or radiators periodically to promote even heat distribution.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1891\" data-end=\"2003\"\u003e\n\u003cp data-start=\"1893\" data-end=\"2003\"\u003e\u003cstrong data-start=\"1893\" data-end=\"1930\"\u003eInspect venting \u0026amp; combustion air:\u003c\/strong\u003e Ensure flue and air intakes remain clear of debris and operate safely.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2004\" data-end=\"2113\"\u003e\n\u003cp data-start=\"2006\" data-end=\"2113\"\u003e\u003cstrong data-start=\"2006\" data-end=\"2026\"\u003eCheck for leaks:\u003c\/strong\u003e Regularly inspect around valves, joints, and piping for signs of water or gas leaks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2114\" data-end=\"2225\"\u003e\n\u003cp data-start=\"2116\" data-end=\"2225\"\u003e\u003cstrong data-start=\"2116\" data-end=\"2143\"\u003eFlush system as needed:\u003c\/strong\u003e Periodic flushing helps reduce sediment buildup and maintain boiler efficiency.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Weil-McLain","offers":[{"title":"Default Title","offer_id":45440112197823,"sku":"W381359070","price":2038.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/Weil-McLain-CGa-25-Series-3-38000-BTU-Cast-Iron-Natural-Gas-Boiler-Main-Image_16.jpg?v=1775023154"},{"product_id":"weil-mclain-cga-5-series-3-133000-btu-cast-iron-natural-gas-boiler","title":"Weil-McLain CGa-5 Series 3 133,000 BTU Cast Iron Natural Gas Boiler","description":"\u003ch2\u003eWeil-McLain CGa-5 Series 3 133,000 BTU Cast Iron Natural Gas Boiler\u003c\/h2\u003e\n\u003cp\u003eWeil-McLain is a leading North American Brand of hydronic comfort heating systems for residential, commercial and institutional buildings, since 1881. Contractors, engineers, architects, homeowners, and facility managers alike rely on Weil-McLain boilers for their comfort heating needs. Installed in homes, offices, schools, restaurants, hotels, and other facilities throughout North America, the Weil-McLain brand is among the most trusted and often used in the building industry.\u003c\/p\u003e\n\u003ch5\u003eFeatures\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eNatural draft, silent operation\u003c\/li\u003e\n\u003cli\u003eIntegrated Boiler Control Module with intermittent electronic ignition system and indicator\/diagnostic lights\u003c\/li\u003e\n\u003cli\u003eCompact design saves valuable living space\u003c\/li\u003e\n\u003cli\u003eBuilt-in low water cut off functionality\u003c\/li\u003e\n\u003cli\u003eStainless steel burners for quieter ignition, longer life, and improved combustion\u003c\/li\u003e\n\u003cli\u003eGas fired water boiler with cast iron sections\u003c\/li\u003e\n\u003cli\u003eEasily accessible controls, vertical flueways, and top cleaning for easy and quick servicing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"0\" data-end=\"30\"\u003eWhat Our Experts Think\u003c\/h5\u003e\n\u003cul data-start=\"31\" data-end=\"784\"\u003e\n\u003cli data-start=\"31\" data-end=\"267\"\u003e\n\u003cp data-start=\"33\" data-end=\"267\"\u003e\u003cstrong data-start=\"33\" data-end=\"60\"\u003eDependable heat output:\u003c\/strong\u003e The \u003cstrong data-start=\"65\" data-end=\"136\"\u003eWeil‑McLain CGa‑5 Series 3 133,000 BTU Cast Iron Natural Gas Boiler\u003c\/strong\u003e offers \u003cstrong data-start=\"144\" data-end=\"178\"\u003esteady, reliable hydronic heat\u003c\/strong\u003e — well‑suited for \u003cstrong data-start=\"197\" data-end=\"264\"\u003emid‑ to large‑sized homes, duplexes, or light commercial spaces\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"268\" data-end=\"472\"\u003e\n\u003cp data-start=\"270\" data-end=\"472\"\u003e\u003cstrong data-start=\"270\" data-end=\"295\"\u003eCast‑iron durability:\u003c\/strong\u003e Classic cast‑iron construction provides \u003cstrong data-start=\"336\" data-end=\"387\"\u003eexcellent thermal mass and corrosion resistance\u003c\/strong\u003e, helping the boiler deliver long service life with smooth, even heat distribution.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"473\" data-end=\"616\"\u003e\n\u003cp data-start=\"475\" data-end=\"616\"\u003e\u003cstrong data-start=\"475\" data-end=\"502\"\u003eStraightforward design:\u003c\/strong\u003e Conventional boiler architecture with proven components makes \u003cstrong data-start=\"565\" data-end=\"603\"\u003eservice and maintenance accessible\u003c\/strong\u003e for techs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"617\" data-end=\"784\"\u003e\n\u003cp data-start=\"619\" data-end=\"784\"\u003e\u003cstrong data-start=\"619\" data-end=\"643\"\u003eTrusted performance:\u003c\/strong\u003e Weil‑McLain’s CGa series has a longstanding reputation for \u003cstrong data-start=\"703\" data-end=\"748\"\u003erobust operation and dependable start‑ups\u003c\/strong\u003e in a wide range of heating systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"786\" data-end=\"805\"\u003eProduct Q\u0026amp;A\u003c\/h5\u003e\n\u003cul data-start=\"806\" data-end=\"1461\"\u003e\n\u003cli data-start=\"806\" data-end=\"967\"\u003e\n\u003cp data-start=\"808\" data-end=\"967\"\u003e\u003cstrong data-start=\"808\" data-end=\"840\"\u003eWhat type of boiler is this?\u003c\/strong\u003e\u003cbr data-start=\"840\" data-end=\"843\"\u003eA \u003cstrong data-start=\"847\" data-end=\"895\"\u003ecast‑iron, natural gas‑fired hydronic boiler\u003c\/strong\u003e that heats water for baseboards, radiators, or radiant floor systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"968\" data-end=\"1146\"\u003e\n\u003cp data-start=\"970\" data-end=\"1146\"\u003e\u003cstrong data-start=\"970\" data-end=\"1003\"\u003eWhat is the heating capacity?\u003c\/strong\u003e\u003cbr data-start=\"1003\" data-end=\"1006\"\u003eProvides \u003cstrong data-start=\"1017\" data-end=\"1037\"\u003e133,000 BTU\/hour\u003c\/strong\u003e — ideal for \u003cstrong data-start=\"1050\" data-end=\"1115\"\u003emedium to larger residential or light commercial applications\u003c\/strong\u003e with moderate heating loads.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1147\" data-end=\"1309\"\u003e\n\u003cp data-start=\"1149\" data-end=\"1309\"\u003e\u003cstrong data-start=\"1149\" data-end=\"1182\"\u003eDoes it need special venting?\u003c\/strong\u003e\u003cbr data-start=\"1182\" data-end=\"1185\"\u003eYes — conventional natural gas boilers require \u003cstrong data-start=\"1234\" data-end=\"1263\"\u003eproper chimney or venting\u003c\/strong\u003e per local codes and Weil‑McLain guidelines.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1310\" data-end=\"1461\"\u003e\n\u003cp data-start=\"1312\" data-end=\"1461\"\u003e\u003cstrong data-start=\"1312\" data-end=\"1353\"\u003eCan this be used in new construction?\u003c\/strong\u003e\u003cbr data-start=\"1353\" data-end=\"1356\"\u003eYes — especially where \u003cstrong data-start=\"1381\" data-end=\"1425\"\u003etraditional cast‑iron boiler performance\u003c\/strong\u003e is preferred over condensing units.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"1463\" data-end=\"1487\"\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cul data-start=\"1488\" data-end=\"2291\"\u003e\n\u003cli data-start=\"1488\" data-end=\"1680\"\u003e\n\u003cp data-start=\"1490\" data-end=\"1680\"\u003e\u003cstrong data-start=\"1490\" data-end=\"1522\"\u003eAnnual professional service:\u003c\/strong\u003e Have a licensed HVAC technician inspect the boiler \u003cstrong data-start=\"1574\" data-end=\"1604\"\u003ebefore each heating season\u003c\/strong\u003e — check the burner, heat exchanger, combustion performance, and controls.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1681\" data-end=\"1807\"\u003e\n\u003cp data-start=\"1683\" data-end=\"1807\"\u003e\u003cstrong data-start=\"1683\" data-end=\"1718\"\u003eMonitor pressure \u0026amp; water level:\u003c\/strong\u003e Keep system pressure within recommended ranges and check the expansion tank regularly.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1808\" data-end=\"1928\"\u003e\n\u003cp data-start=\"1810\" data-end=\"1928\"\u003e\u003cstrong data-start=\"1810\" data-end=\"1838\"\u003eBleed air from circuits:\u003c\/strong\u003e Release trapped air in baseboards or radiators to maintain efficient heat distribution.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1929\" data-end=\"2059\"\u003e\n\u003cp data-start=\"1931\" data-end=\"2059\"\u003e\u003cstrong data-start=\"1931\" data-end=\"1970\"\u003eInspect venting and combustion air:\u003c\/strong\u003e Clear any blockages and ensure flues and intakes are properly sealed and unobstructed.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2060\" data-end=\"2174\"\u003e\n\u003cp data-start=\"2062\" data-end=\"2174\"\u003e\u003cstrong data-start=\"2062\" data-end=\"2082\"\u003eWatch for leaks:\u003c\/strong\u003e Periodically check around fittings, valves, and piping for signs of water or gas leakage.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2175\" data-end=\"2291\"\u003e\n\u003cp data-start=\"2177\" data-end=\"2291\"\u003e\u003cstrong data-start=\"2177\" data-end=\"2207\"\u003eFlush system periodically:\u003c\/strong\u003e Remove sediment and scale to help maintain efficiency and prolong component life\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Weil-McLain","offers":[{"title":"Default Title","offer_id":45440112296127,"sku":"W381359076","price":2745.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/Weil-McLain-CGa-5-Series-3-133000-BTU-Cast-Iron-Natural-Gas-Boiler-Main-Image_15.jpg?v=1775023156"},{"product_id":"weil-mclain-cga-7-series-3-200000-btu-cast-iron-natural-gas-boiler","title":"Weil-McLain CGa-7 Series 3 200,000 BTU Cast Iron Natural Gas Boiler","description":"\u003ch2\u003eWeil-McLain CGa-7 Series 3 200,000 BTU Cast Iron Natural Gas Boiler\u003c\/h2\u003e\n\u003cp\u003eWeil-McLain is a leading North American Brand of hydronic comfort heating systems for residential, commercial and institutional buildings, since 1881. Contractors, engineers, architects, homeowners, and facility managers alike rely on Weil-McLain boilers for their comfort heating needs. Installed in homes, offices, schools, restaurants, hotels, and other facilities throughout North America, the Weil-McLain brand is among the most trusted and often used in the building industry.\u003c\/p\u003e\n\u003ch5\u003eFeatures\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eNatural draft, silent operation\u003c\/li\u003e\n\u003cli\u003eIntegrated Boiler Control Module with intermittent electronic ignition system and indicator\/diagnostic lights\u003c\/li\u003e\n\u003cli\u003eCompact design saves valuable living space\u003c\/li\u003e\n\u003cli\u003eBuilt-in low water cut off functionality\u003c\/li\u003e\n\u003cli\u003eStainless steel burners for quieter ignition, longer life, and improved combustion\u003c\/li\u003e\n\u003cli\u003eGas fired water boiler with cast iron sections\u003c\/li\u003e\n\u003cli\u003eEasily accessible controls, vertical flueways, and top cleaning for easy and quick servicing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"0\" data-end=\"30\"\u003eWhat Our Experts Think\u003c\/h5\u003e\n\u003cul data-start=\"31\" data-end=\"750\"\u003e\n\u003cli data-start=\"31\" data-end=\"267\"\u003e\n\u003cp data-start=\"33\" data-end=\"267\"\u003e\u003cstrong data-start=\"33\" data-end=\"60\"\u003eReliable heat delivery:\u003c\/strong\u003e The \u003cstrong data-start=\"65\" data-end=\"136\"\u003eWeil-McLain CGa-7 Series 3 200,000 BTU Cast Iron Natural Gas Boiler\u003c\/strong\u003e offers \u003cstrong data-start=\"144\" data-end=\"183\"\u003econsistent, steady hydronic heating\u003c\/strong\u003e well-suited for large homes, multifamily properties, and light commercial spaces.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"268\" data-end=\"450\"\u003e\n\u003cp data-start=\"270\" data-end=\"450\"\u003e\u003cstrong data-start=\"270\" data-end=\"302\"\u003eProven cast-iron durability:\u003c\/strong\u003e Cast-iron sections provide excellent \u003cstrong data-start=\"340\" data-end=\"381\"\u003ethermal mass and corrosion resistance\u003c\/strong\u003e, delivering long-lasting performance and smooth, even heat output.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"451\" data-end=\"592\"\u003e\n\u003cp data-start=\"453\" data-end=\"592\"\u003e\u003cstrong data-start=\"453\" data-end=\"480\"\u003eStraightforward design:\u003c\/strong\u003e Conventional boiler architecture makes service, troubleshooting, and maintenance easier for HVAC technicians.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"593\" data-end=\"750\"\u003e\n\u003cp data-start=\"595\" data-end=\"750\"\u003e\u003cstrong data-start=\"595\" data-end=\"622\"\u003eTrusted brand heritage:\u003c\/strong\u003e Weil-McLain’s CGa series has a strong track record for \u003cstrong data-start=\"678\" data-end=\"718\"\u003ereliability and dependable operation\u003c\/strong\u003e in traditional heating systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"752\" data-end=\"771\"\u003eProduct Q\u0026amp;A\u003c\/h5\u003e\n\u003cul data-start=\"772\" data-end=\"1378\"\u003e\n\u003cli data-start=\"772\" data-end=\"931\"\u003e\n\u003cp data-start=\"774\" data-end=\"931\"\u003e\u003cstrong data-start=\"774\" data-end=\"806\"\u003eWhat type of boiler is this?\u003c\/strong\u003e\u003cbr data-start=\"806\" data-end=\"809\"\u003eA \u003cstrong data-start=\"813\" data-end=\"861\"\u003ecast-iron, natural gas-fired hydronic boiler\u003c\/strong\u003e that heats water for baseboard, radiator, or radiant floor systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"932\" data-end=\"1059\"\u003e\n\u003cp data-start=\"934\" data-end=\"1059\"\u003e\u003cstrong data-start=\"934\" data-end=\"967\"\u003eWhat is the heating capacity?\u003c\/strong\u003e\u003cbr data-start=\"967\" data-end=\"970\"\u003e\u003cstrong data-start=\"972\" data-end=\"992\"\u003e200,000 BTU\/hour\u003c\/strong\u003e — ideal for \u003cstrong data-start=\"1005\" data-end=\"1021\"\u003elarge spaces\u003c\/strong\u003e and high heating load requirements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1060\" data-end=\"1228\"\u003e\n\u003cp data-start=\"1062\" data-end=\"1228\"\u003e\u003cstrong data-start=\"1062\" data-end=\"1098\"\u003eDoes it require special venting?\u003c\/strong\u003e\u003cbr data-start=\"1098\" data-end=\"1101\"\u003eYes — conventional gas boilers require \u003cstrong data-start=\"1142\" data-end=\"1176\"\u003eproper chimney or flue venting\u003c\/strong\u003e installed per code and manufacturer instructions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1229\" data-end=\"1378\"\u003e\n\u003cp data-start=\"1231\" data-end=\"1378\"\u003e\u003cstrong data-start=\"1231\" data-end=\"1273\"\u003eIs this suitable for new construction?\u003c\/strong\u003e\u003cbr data-start=\"1273\" data-end=\"1276\"\u003eYes — particularly where \u003cstrong data-start=\"1303\" data-end=\"1342\"\u003erobust, long-lasting cast-iron heat\u003c\/strong\u003e is preferred over condensing units.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"1380\" data-end=\"1404\"\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cul data-start=\"1405\" data-end=\"2179\"\u003e\n\u003cli data-start=\"1405\" data-end=\"1587\"\u003e\n\u003cp data-start=\"1407\" data-end=\"1587\"\u003e\u003cstrong data-start=\"1407\" data-end=\"1442\"\u003eAnnual professional inspection:\u003c\/strong\u003e Have a licensed HVAC technician service the boiler \u003cstrong data-start=\"1494\" data-end=\"1524\"\u003ebefore each heating season\u003c\/strong\u003e — checking burner, heat exchanger, combustion, and controls.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1588\" data-end=\"1727\"\u003e\n\u003cp data-start=\"1590\" data-end=\"1727\"\u003e\u003cstrong data-start=\"1590\" data-end=\"1627\"\u003eMonitor pressure and water level:\u003c\/strong\u003e Keep system pressure within manufacturer-recommended ranges and check expansion tank performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1728\" data-end=\"1834\"\u003e\n\u003cp data-start=\"1730\" data-end=\"1834\"\u003e\u003cstrong data-start=\"1730\" data-end=\"1761\"\u003eBleed radiators\/baseboards:\u003c\/strong\u003e Release trapped air as needed to maintain efficient heat distribution.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1835\" data-end=\"1945\"\u003e\n\u003cp data-start=\"1837\" data-end=\"1945\"\u003e\u003cstrong data-start=\"1837\" data-end=\"1876\"\u003eInspect venting and combustion air:\u003c\/strong\u003e Clear any blockages and ensure airtight flues and intake pathways.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1946\" data-end=\"2060\"\u003e\n\u003cp data-start=\"1948\" data-end=\"2060\"\u003e\u003cstrong data-start=\"1948\" data-end=\"1968\"\u003eCheck for leaks:\u003c\/strong\u003e Regularly examine valves, fittings, and pipe connections for signs of water or gas leaks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2061\" data-end=\"2179\"\u003e\n\u003cp data-start=\"2063\" data-end=\"2179\"\u003e\u003cstrong data-start=\"2063\" data-end=\"2093\"\u003eFlush system periodically:\u003c\/strong\u003e Remove accumulated sediment and scale to preserve efficiency and extend service life.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Weil-McLain","offers":[{"title":"Default Title","offer_id":45440112656575,"sku":"W381359080","price":3630.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/Weil-McLain-CGa-7-Series-3-200000-BTU-Cast-Iron-Natural-Gas-Boiler-Main-Image_20.jpg?v=1775023158"},{"product_id":"weil-mclain-easy-up-manifold-kit-1-1-2-in-w383500766","title":"Weil-McLain Easy-Up Manifold Kit (1-1\/2 in) 383500766","description":"\u003ch2\u003e\u003cstrong\u003eWeil-McLain Easy-Up Manifold Kit (1-1\/2 in) 383500766\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch5\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuick Installation\u003c\/strong\u003e: Saves time by reducing the complexity of single-boiler installations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Design\u003c\/strong\u003e: Tailored to fit 1-1\/2 inch fittings, compatible with Weil-McLain Ultra 155-399 Series 4 boilers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eError Reduction\u003c\/strong\u003e: Minimizes installation mistakes, delivering a smooth, trouble-free process.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional Finish\u003c\/strong\u003e: Achieve a clean, organized appearance for your hydronic heating system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Functionality\u003c\/strong\u003e: Simplifies the addition of indirect water heaters to your system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Servicing\u003c\/strong\u003e: Designed for easy access, allowing for efficient system maintenance and repairs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand Compatibility\u003c\/strong\u003e: Weil-McLain Ultra 155-399 Series 4 boilers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitting Size\u003c\/strong\u003e: 1-1\/2 inches.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"0\" data-end=\"30\"\u003eWhat Our Experts Think\u003c\/h5\u003e\n\u003cul data-start=\"31\" data-end=\"706\"\u003e\n\u003cli data-start=\"31\" data-end=\"275\"\u003e\n\u003cp data-start=\"33\" data-end=\"275\"\u003e\u003cstrong data-start=\"33\" data-end=\"68\"\u003eProfessional hydronic solution:\u003c\/strong\u003e The \u003cstrong data-start=\"73\" data-end=\"135\"\u003eWeil-McLain Easy-Up Manifold Kit (1-1\/2″, Model 383500766)\u003c\/strong\u003e provides a \u003cstrong data-start=\"147\" data-end=\"181\"\u003estreamlined distribution point\u003c\/strong\u003e for hydronic heating systems, delivering reliable, balanced flow to multiple heating zones.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"276\" data-end=\"438\"\u003e\n\u003cp data-start=\"278\" data-end=\"438\"\u003e\u003cstrong data-start=\"278\" data-end=\"306\"\u003eSimplified installation:\u003c\/strong\u003e Designed for quick, organized hookups — reducing labor time and improving system neatness compared with field-built arrangements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"439\" data-end=\"574\"\u003e\n\u003cp data-start=\"441\" data-end=\"574\"\u003e\u003cstrong data-start=\"441\" data-end=\"464\"\u003eDurable components:\u003c\/strong\u003e High-quality materials offer corrosion resistance and long-lasting performance in boiler-room environments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"575\" data-end=\"706\"\u003e\n\u003cp data-start=\"577\" data-end=\"706\"\u003e\u003cstrong data-start=\"577\" data-end=\"605\"\u003eService-friendly layout:\u003c\/strong\u003e Easy access to ports and valves makes maintenance, balancing, and future expansions more convenient.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"708\" data-end=\"727\"\u003eProduct Q\u0026amp;A\u003c\/h5\u003e\n\u003cul data-start=\"728\" data-end=\"1314\"\u003e\n\u003cli data-start=\"728\" data-end=\"933\"\u003e\n\u003cp data-start=\"730\" data-end=\"933\"\u003e\u003cstrong data-start=\"730\" data-end=\"764\"\u003eWhat is this manifold kit for?\u003c\/strong\u003e\u003cbr data-start=\"764\" data-end=\"767\"\u003eIt’s used to \u003cstrong data-start=\"782\" data-end=\"806\"\u003edistribute hot water\u003c\/strong\u003e from a boiler to two or more heating circuits (baseboards, radiant loops, etc.) while providing a centralized service point.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"934\" data-end=\"1047\"\u003e\n\u003cp data-start=\"936\" data-end=\"1047\"\u003e\u003cstrong data-start=\"936\" data-end=\"956\"\u003eWhat size is it?\u003c\/strong\u003e\u003cbr data-start=\"956\" data-end=\"959\"\u003e\u003cstrong data-start=\"961\" data-end=\"971\"\u003e1-1\/2″\u003c\/strong\u003e main supply\/return ports — suitable for medium-capacity hydronic systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1048\" data-end=\"1198\"\u003e\n\u003cp data-start=\"1050\" data-end=\"1198\"\u003e\u003cstrong data-start=\"1050\" data-end=\"1077\"\u003eDoes it include valves?\u003c\/strong\u003e\u003cbr data-start=\"1077\" data-end=\"1080\"\u003eYes — typically includes flow control and balancing valves for each circuit (verify contents with your installer).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1199\" data-end=\"1314\"\u003e\n\u003cp data-start=\"1201\" data-end=\"1314\"\u003e\u003cstrong data-start=\"1201\" data-end=\"1227\"\u003eWhere is it installed?\u003c\/strong\u003e\u003cbr data-start=\"1227\" data-end=\"1230\"\u003eNear the boiler or mechanical room where supply and return piping branch to zones.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"1316\" data-end=\"1340\"\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cul data-start=\"1341\" data-end=\"2048\"\u003e\n\u003cli data-start=\"1341\" data-end=\"1456\"\u003e\n\u003cp data-start=\"1343\" data-end=\"1456\"\u003e\u003cstrong data-start=\"1343\" data-end=\"1363\"\u003eCheck for leaks:\u003c\/strong\u003e Periodically inspect joints, valves, and connections for \u003cstrong data-start=\"1421\" data-end=\"1453\"\u003etight, leak-free performance\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1457\" data-end=\"1568\"\u003e\n\u003cp data-start=\"1459\" data-end=\"1568\"\u003e\u003cstrong data-start=\"1459\" data-end=\"1477\"\u003eBalance zones:\u003c\/strong\u003e Adjust flow valves as needed during seasonal changes to maintain even heat distribution.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1569\" data-end=\"1690\"\u003e\n\u003cp data-start=\"1571\" data-end=\"1690\"\u003e\u003cstrong data-start=\"1571\" data-end=\"1594\"\u003eFlush periodically:\u003c\/strong\u003e If allowed by system design, flush combined manifolds and headers to reduce sediment buildup.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1691\" data-end=\"1788\"\u003e\n\u003cp data-start=\"1693\" data-end=\"1788\"\u003e\u003cstrong data-start=\"1693\" data-end=\"1716\"\u003eInspect insulation:\u003c\/strong\u003e Ensure lines and valves are properly insulated to minimize heat loss.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1789\" data-end=\"1908\"\u003e\n\u003cp data-start=\"1791\" data-end=\"1908\"\u003e\u003cstrong data-start=\"1791\" data-end=\"1810\"\u003eService access:\u003c\/strong\u003e Keep the area around the manifold clear so technicians can reach valves and gauge ports easily.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1909\" data-end=\"2048\"\u003e\n\u003cp data-start=\"1911\" data-end=\"2048\"\u003e\u003cstrong data-start=\"1911\" data-end=\"1946\"\u003eFollow manufacturer guidelines:\u003c\/strong\u003e Use Weil-McLain-approved parts and installation practices for best longevity and warranty compliance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Weil-McLain","offers":[{"title":"Default Title","offer_id":45440112722111,"sku":"W383500766","price":619.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/7406843_7058465_primary_13.webp?v=1775023160"},{"product_id":"propane-conversion-kit-w510811362-by-weil-mclain","title":"Propane Conversion Kit W510811362 by Weil McLain","description":"\u003ch2\u003ePropane Conversion Kit W510811362 by Weil McLain\u003c\/h2\u003e\n\u003cp\u003eManufacturer Part Number: 510811362\u003cbr\u003eNatural gas to Propane Cga 25-6\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eAllows for the conversion of natural gas to propane operation in CGa2.5\/6 models\u003c\/p\u003e\n\u003ch5 data-start=\"0\" data-end=\"30\"\u003eWhat Our Experts Think\u003c\/h5\u003e\n\u003cul data-start=\"31\" data-end=\"733\"\u003e\n\u003cli data-start=\"31\" data-end=\"249\"\u003e\n\u003cp data-start=\"33\" data-end=\"249\"\u003e\u003cstrong data-start=\"33\" data-end=\"66\"\u003eEssential fuel swap solution:\u003c\/strong\u003e The \u003cstrong data-start=\"71\" data-end=\"128\"\u003eWeil-McLain Propane Conversion Kit (Model W510811362)\u003c\/strong\u003e lets you safely convert a compatible natural gas boiler to run on \u003cstrong data-start=\"195\" data-end=\"211\"\u003epropane (LP)\u003c\/strong\u003e with proper combustion performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"250\" data-end=\"415\"\u003e\n\u003cp data-start=\"252\" data-end=\"415\"\u003e\u003cstrong data-start=\"252\" data-end=\"276\"\u003eOEM-matched quality:\u003c\/strong\u003e Designed by \u003cstrong data-start=\"289\" data-end=\"304\"\u003eWeil-McLain\u003c\/strong\u003e to meet original manufacturer specifications — helps maintain efficiency, safety, and long-term reliability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"416\" data-end=\"595\"\u003e\n\u003cp data-start=\"418\" data-end=\"595\"\u003e\u003cstrong data-start=\"418\" data-end=\"454\"\u003ePrecision calibrated components:\u003c\/strong\u003e Includes the correct \u003cstrong data-start=\"476\" data-end=\"506\"\u003ejets\/orifices and hardware\u003c\/strong\u003e sized specifically for propane to ensure proper flame characteristics and heat output.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"596\" data-end=\"733\"\u003e\n\u003cp data-start=\"598\" data-end=\"733\"\u003e\u003cstrong data-start=\"598\" data-end=\"626\"\u003eService-friendly design:\u003c\/strong\u003e Straightforward parts layout makes installation quicker and more accurate for licensed HVAC professionals.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"735\" data-end=\"754\"\u003eProduct Q\u0026amp;A\u003c\/h5\u003e\n\u003cul data-start=\"755\" data-end=\"1370\"\u003e\n\u003cli data-start=\"755\" data-end=\"863\"\u003e\n\u003cp data-start=\"757\" data-end=\"863\"\u003e\u003cstrong data-start=\"757\" data-end=\"782\"\u003eWhat is this kit for?\u003c\/strong\u003e\u003cbr data-start=\"782\" data-end=\"785\"\u003eTo \u003cstrong data-start=\"790\" data-end=\"855\"\u003econvert a Weil-McLain boiler from natural gas to propane (LP)\u003c\/strong\u003e fuel.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"864\" data-end=\"1013\"\u003e\n\u003cp data-start=\"866\" data-end=\"1013\"\u003e\u003cstrong data-start=\"866\" data-end=\"899\"\u003eWill this work on any boiler?\u003c\/strong\u003e\u003cbr data-start=\"899\" data-end=\"902\"\u003eNo — it’s only compatible with specific Weil-McLain models; always confirm compatibility before purchasing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1014\" data-end=\"1203\"\u003e\n\u003cp data-start=\"1016\" data-end=\"1203\"\u003e\u003cstrong data-start=\"1016\" data-end=\"1058\"\u003eDoes the kit include all needed parts?\u003c\/strong\u003e\u003cbr data-start=\"1058\" data-end=\"1061\"\u003eYes — it typically includes the \u003cstrong data-start=\"1095\" data-end=\"1152\"\u003epropane-specific jets\/orifices and necessary hardware\u003c\/strong\u003e for conversion (verify contents with installer).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1204\" data-end=\"1370\"\u003e\n\u003cp data-start=\"1206\" data-end=\"1370\"\u003e\u003cstrong data-start=\"1206\" data-end=\"1234\"\u003eCan I install it myself?\u003c\/strong\u003e\u003cbr data-start=\"1234\" data-end=\"1237\"\u003eNo — \u003cstrong data-start=\"1244\" data-end=\"1332\"\u003epropane conversions must be performed by a qualified HVAC or gas-licensed technician\u003c\/strong\u003e to ensure safety and code compliance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"1372\" data-end=\"1396\"\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cul data-start=\"1397\" data-end=\"2080\"\u003e\n\u003cli data-start=\"1397\" data-end=\"1557\"\u003e\n\u003cp data-start=\"1399\" data-end=\"1557\"\u003e\u003cstrong data-start=\"1399\" data-end=\"1442\"\u003eVerify combustion tuning after install:\u003c\/strong\u003e Have a technician \u003cstrong data-start=\"1461\" data-end=\"1508\"\u003echeck flame quality and combustion settings\u003c\/strong\u003e post-conversion for safe, efficient operation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1558\" data-end=\"1673\"\u003e\n\u003cp data-start=\"1560\" data-end=\"1673\"\u003e\u003cstrong data-start=\"1560\" data-end=\"1588\"\u003eInspect gas connections:\u003c\/strong\u003e Periodically check for secure, leak-free fittings around the converted components.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1674\" data-end=\"1834\"\u003e\n\u003cp data-start=\"1676\" data-end=\"1834\"\u003e\u003cstrong data-start=\"1676\" data-end=\"1706\"\u003eInclude in annual service:\u003c\/strong\u003e Add the converted boiler to your \u003cstrong data-start=\"1740\" data-end=\"1771\"\u003eyearly maintenance schedule\u003c\/strong\u003e to monitor burners, heat exchanger, and propane performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1835\" data-end=\"1956\"\u003e\n\u003cp data-start=\"1837\" data-end=\"1956\"\u003e\u003cstrong data-start=\"1837\" data-end=\"1871\"\u003eMonitor propane supply system:\u003c\/strong\u003e Ensure regulator and tank fittings remain clean, secure, and free of contaminants.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1957\" data-end=\"2080\"\u003e\n\u003cp data-start=\"1959\" data-end=\"2080\"\u003e\u003cstrong data-start=\"1959\" data-end=\"1982\"\u003eUse only OEM parts:\u003c\/strong\u003e Stick with Weil-McLain-approved kits and components to protect performance and warranty coverage.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Weil-McLain","offers":[{"title":"Default Title","offer_id":45440112820415,"sku":null,"price":292.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/392111_4307942_primary_e8b9bf37-0352-419b-864d-144ec036f824_18.webp?v=1775023164"},{"product_id":"weil-mclain-ultra-series-4-230000-btu-condensing-gas-boiler","title":"Weil-McLain Ultra Series 4 230,000 BTU Condensing Gas Boiler","description":"\u003ch2\u003eWeil-McLain Ultra Series 4 230,000 BTU Condensing Gas Boiler\u003c\/h2\u003e\n\u003cp\u003eWeil-McLain is a leading North American Brand of hydronic comfort heating systems for residential, commercial and institutional buildings, since 1881. Contractors, engineers, architects, homeowners, and facility managers alike rely on Weil-McLain boilers for their comfort heating needs. Installed in homes, offices, schools, restaurants, hotels, and other facilities throughout North America, the Weil-McLain brand is among the most trusted and often used in the building industry.\u003c\/p\u003e\n\u003ch5\u003eFeatures\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eCast aluminum coated heat exchanger\u003c\/li\u003e\n\u003cli\u003eDesigned to operate in low temperature condensing applications\u003c\/li\u003e\n\u003cli\u003eOutdoor reset and domestic hot water priority\u003c\/li\u003e\n\u003cli\u003eModulates with 5:1 turn-down ratio\u003c\/li\u003e\n\u003cli\u003eHigh grade stainless steel burner features quiet operation\u003c\/li\u003e\n\u003cli\u003eU-Control gives the power for easy set-up and maintenance\u003c\/li\u003e\n\u003cli\u003eMultiple set-up and zone options\u003c\/li\u003e\n\u003cli\u003eSystem sensing recognizes system and outdoor temperatures\u003c\/li\u003e\n\u003cli\u003eTemperature management for up to three different set-points\u003c\/li\u003e\n\u003cli\u003eControl multiple boilers from a single control panel\u003c\/li\u003e\n\u003cli\u003eStandard screen messages provide service alerts and maintenance reminders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"0\" data-end=\"30\"\u003eWhat Our Experts Think\u003c\/h5\u003e\n\u003cul data-start=\"31\" data-end=\"787\"\u003e\n\u003cli data-start=\"31\" data-end=\"289\"\u003e\n\u003cp data-start=\"33\" data-end=\"289\"\u003e\u003cstrong data-start=\"33\" data-end=\"69\"\u003eHigh-efficiency condensing heat:\u003c\/strong\u003e The \u003cstrong data-start=\"74\" data-end=\"138\"\u003eWeil-McLain Ultra Series 4 230,000 BTU Condensing Gas Boiler\u003c\/strong\u003e delivers \u003cstrong data-start=\"148\" data-end=\"176\"\u003etop-tier fuel efficiency\u003c\/strong\u003e (up to around 95% AFUE) by capturing extra heat from exhaust gases — lowering fuel costs and carbon footprint.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"290\" data-end=\"467\"\u003e\n\u003cp data-start=\"292\" data-end=\"467\"\u003e\u003cstrong data-start=\"292\" data-end=\"320\"\u003eRobust heating capacity:\u003c\/strong\u003e With \u003cstrong data-start=\"326\" data-end=\"350\"\u003e230,000 BTU\/h output\u003c\/strong\u003e, it’s ideal for \u003cstrong data-start=\"367\" data-end=\"423\"\u003elarge homes, multifamily units, or commercial spaces\u003c\/strong\u003e that need strong, reliable hydronic heat.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"468\" data-end=\"609\"\u003e\n\u003cp data-start=\"470\" data-end=\"609\"\u003e\u003cstrong data-start=\"470\" data-end=\"498\"\u003eSmooth, quiet operation:\u003c\/strong\u003e Advanced burner and heat transfer design help reduce operational noise and provide even temperature control.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"610\" data-end=\"787\"\u003e\n\u003cp data-start=\"612\" data-end=\"787\"\u003e\u003cstrong data-start=\"612\" data-end=\"654\"\u003eDurable construction \u0026amp; serviceability:\u003c\/strong\u003e Built with a corrosion-resistant heat exchanger and accessible service points, making maintenance easier and extending service life.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"789\" data-end=\"808\"\u003eProduct Q\u0026amp;A\u003c\/h5\u003e\n\u003cul data-start=\"809\" data-end=\"1580\"\u003e\n\u003cli data-start=\"809\" data-end=\"979\"\u003e\n\u003cp data-start=\"811\" data-end=\"979\"\u003e\u003cstrong data-start=\"811\" data-end=\"843\"\u003eWhat type of boiler is this?\u003c\/strong\u003e\u003cbr data-start=\"843\" data-end=\"846\"\u003eA \u003cstrong data-start=\"850\" data-end=\"891\"\u003ehigh-efficiency condensing gas boiler\u003c\/strong\u003e that uses a secondary heat exchanger to squeeze extra energy from combustion exhaust.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"980\" data-end=\"1127\"\u003e\n\u003cp data-start=\"982\" data-end=\"1127\"\u003e\u003cstrong data-start=\"982\" data-end=\"1008\"\u003eWhere is it best used?\u003c\/strong\u003e\u003cbr data-start=\"1008\" data-end=\"1011\"\u003eBest for \u003cstrong data-start=\"1022\" data-end=\"1124\"\u003elarge residential properties, multifamily buildings, schools, and light commercial heating systems\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1128\" data-end=\"1279\"\u003e\n\u003cp data-start=\"1130\" data-end=\"1279\"\u003e\u003cstrong data-start=\"1130\" data-end=\"1176\"\u003eWhat distribution systems does it support?\u003c\/strong\u003e\u003cbr data-start=\"1176\" data-end=\"1179\"\u003eWorks with \u003cstrong data-start=\"1192\" data-end=\"1276\"\u003ehydronic baseboards, radiant floor systems, fan coils, and other hot-water loops\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1280\" data-end=\"1397\"\u003e\n\u003cp data-start=\"1282\" data-end=\"1397\"\u003e\u003cstrong data-start=\"1282\" data-end=\"1308\"\u003eWhat fuel does it use?\u003c\/strong\u003e\u003cbr data-start=\"1308\" data-end=\"1311\"\u003eNatural gas (qualified HVAC techs can install a propane conversion kit if needed).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1398\" data-end=\"1580\"\u003e\n\u003cp data-start=\"1400\" data-end=\"1580\"\u003e\u003cstrong data-start=\"1400\" data-end=\"1436\"\u003eDoes it require special venting?\u003c\/strong\u003e\u003cbr data-start=\"1436\" data-end=\"1439\"\u003eYes — condensing boilers typically use \u003cstrong data-start=\"1480\" data-end=\"1519\"\u003ePVC, CPVC, or polypropylene venting\u003c\/strong\u003e due to cooler flue gas temperatures and condensate handling.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"1582\" data-end=\"1606\"\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cul data-start=\"1607\" data-end=\"2432\"\u003e\n\u003cli data-start=\"1607\" data-end=\"1803\"\u003e\n\u003cp data-start=\"1609\" data-end=\"1803\"\u003e\u003cstrong data-start=\"1609\" data-end=\"1641\"\u003eAnnual professional service:\u003c\/strong\u003e Have a licensed HVAC technician inspect and tune the boiler each year before heating season — focusing on the burner, heat exchanger, controls, and combustion.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1804\" data-end=\"1924\"\u003e\n\u003cp data-start=\"1806\" data-end=\"1924\"\u003e\u003cstrong data-start=\"1806\" data-end=\"1833\"\u003eCheck condensate drain:\u003c\/strong\u003e Ensure condensate lines remain clear and draining properly to prevent clogs or freezing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1925\" data-end=\"2035\"\u003e\n\u003cp data-start=\"1927\" data-end=\"2035\"\u003e\u003cstrong data-start=\"1927\" data-end=\"1955\"\u003eMonitor system pressure:\u003c\/strong\u003e Maintain proper boiler pressure and check expansion tank condition as needed.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2036\" data-end=\"2170\"\u003e\n\u003cp data-start=\"2038\" data-end=\"2170\"\u003e\u003cstrong data-start=\"2038\" data-end=\"2080\"\u003eClean intake and exhaust terminations:\u003c\/strong\u003e Keep air inlets and vent terminations free of debris to ensure safe combustion airflow.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2171\" data-end=\"2285\"\u003e\n\u003cp data-start=\"2173\" data-end=\"2285\"\u003e\u003cstrong data-start=\"2173\" data-end=\"2195\"\u003eInspect for leaks:\u003c\/strong\u003e Check around valves, fittings, and piping periodically for signs of water or gas leaks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2286\" data-end=\"2432\"\u003e\n\u003cp data-start=\"2288\" data-end=\"2432\"\u003e\u003cstrong data-start=\"2288\" data-end=\"2315\"\u003eMaintain water quality:\u003c\/strong\u003e Use proper corrosion inhibitors and periodic system flushing to protect internal components and improve longevity.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Weil-McLain","offers":[{"title":"Default Title","offer_id":45440112885951,"sku":"W383500736","price":4737.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/Weil-McLain-Ultra-Series-4-230000-BTU-Condensing-Gas-Boiler-Main-Image_14.jpg?v=1775023166"},{"product_id":"weil-mclain-ultra-series-4-299000-btu-condensing-gas-boiler","title":"Weil-McLain Ultra Series 4 299,000 BTU Condensing Gas Boiler","description":"\u003ch2\u003eWeil-McLain Ultra Series 4 299,000 BTU Condensing Gas Boiler\u003c\/h2\u003e\n\u003cp\u003eWeil-McLain is a leading North American Brand of hydronic comfort heating systems for residential, commercial and institutional buildings, since 1881. Contractors, engineers, architects, homeowners, and facility managers alike rely on Weil-McLain boilers for their comfort heating needs. Installed in homes, offices, schools, restaurants, hotels, and other facilities throughout North America, the Weil-McLain brand is among the most trusted and often used in the building industry.\u003c\/p\u003e\n\u003ch5\u003eFeatures\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eCast aluminum coated heat exchanger\u003c\/li\u003e\n\u003cli\u003eDesigned to operate in low temperature condensing applications\u003c\/li\u003e\n\u003cli\u003eOutdoor reset and domestic hot water priority\u003c\/li\u003e\n\u003cli\u003eModulates with 5:1 turn-down ratio\u003c\/li\u003e\n\u003cli\u003eHigh grade stainless steel burner features quiet operation\u003c\/li\u003e\n\u003cli\u003eU-Control gives the power for easy set-up and maintenance\u003c\/li\u003e\n\u003cli\u003eMultiple set-up and zone options\u003c\/li\u003e\n\u003cli\u003eSystem sensing recognizes system and outdoor temperatures\u003c\/li\u003e\n\u003cli\u003eTemperature management for up to three different set-points\u003c\/li\u003e\n\u003cli\u003eControl multiple boilers from a single control panel\u003c\/li\u003e\n\u003cli\u003eStandard screen messages provide service alerts and maintenance reminders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"0\" data-end=\"30\"\u003eWhat Our Experts Think\u003c\/h5\u003e\n\u003cul data-start=\"31\" data-end=\"820\"\u003e\n\u003cli data-start=\"31\" data-end=\"267\"\u003e\n\u003cp data-start=\"33\" data-end=\"267\"\u003e\u003cstrong data-start=\"33\" data-end=\"62\"\u003eTop-tier high efficiency:\u003c\/strong\u003e The \u003cstrong data-start=\"67\" data-end=\"131\"\u003eWeil-McLain Ultra Series 4 299,000 BTU Condensing Gas Boiler\u003c\/strong\u003e delivers \u003cstrong data-start=\"141\" data-end=\"184\"\u003eindustry-leading condensing performance\u003c\/strong\u003e (typically up to ~95% AFUE), maximizing heat output while minimizing fuel costs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"268\" data-end=\"454\"\u003e\n\u003cp data-start=\"270\" data-end=\"454\"\u003e\u003cstrong data-start=\"270\" data-end=\"293\"\u003eHigh-capacity heat:\u003c\/strong\u003e With \u003cstrong data-start=\"299\" data-end=\"323\"\u003e299,000 BTU\/h output\u003c\/strong\u003e, this boiler is ideal for \u003cstrong data-start=\"350\" data-end=\"420\"\u003elarge homes, multi-unit buildings, and light commercial facilities\u003c\/strong\u003e with substantial heating loads.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"455\" data-end=\"616\"\u003e\n\u003cp data-start=\"457\" data-end=\"616\"\u003e\u003cstrong data-start=\"457\" data-end=\"492\"\u003eQuiet and dependable operation:\u003c\/strong\u003e Advanced burner and heat-recovery design provide smooth, reliable heat with reduced operational noise and thermal stress.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"617\" data-end=\"820\"\u003e\n\u003cp data-start=\"619\" data-end=\"820\"\u003e\u003cstrong data-start=\"619\" data-end=\"656\"\u003eDurable, service-oriented design:\u003c\/strong\u003e Weil-McLain’s robust engineering emphasizes corrosion resistance, long-lasting components, and accessible service points — reducing downtime and maintenance costs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"822\" data-end=\"841\"\u003eProduct Q\u0026amp;A\u003c\/h5\u003e\n\u003cul data-start=\"842\" data-end=\"1700\"\u003e\n\u003cli data-start=\"842\" data-end=\"1017\"\u003e\n\u003cp data-start=\"844\" data-end=\"1017\"\u003e\u003cstrong data-start=\"844\" data-end=\"876\"\u003eWhat type of boiler is this?\u003c\/strong\u003e\u003cbr data-start=\"876\" data-end=\"879\"\u003eA \u003cstrong data-start=\"883\" data-end=\"924\"\u003ehigh-efficiency condensing gas boiler\u003c\/strong\u003e that uses a second heat exchanger to extract extra heat from exhaust gases before venting.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1018\" data-end=\"1218\"\u003e\n\u003cp data-start=\"1020\" data-end=\"1218\"\u003e\u003cstrong data-start=\"1020\" data-end=\"1048\"\u003eWhere is this best used?\u003c\/strong\u003e\u003cbr data-start=\"1048\" data-end=\"1051\"\u003eExcellent for \u003cstrong data-start=\"1067\" data-end=\"1167\"\u003elarge residential properties, multifamily housing, schools, churches, and light commercial sites\u003c\/strong\u003e requiring significant hydronic heating capacity.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1219\" data-end=\"1376\"\u003e\n\u003cp data-start=\"1221\" data-end=\"1376\"\u003e\u003cstrong data-start=\"1221\" data-end=\"1262\"\u003eWhat heating systems does it support?\u003c\/strong\u003e\u003cbr data-start=\"1262\" data-end=\"1265\"\u003eWorks with \u003cstrong data-start=\"1278\" data-end=\"1373\"\u003ehydronic baseboard, radiant floor, fan coils, and other hot-water heat distribution systems\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1377\" data-end=\"1513\"\u003e\n\u003cp data-start=\"1379\" data-end=\"1513\"\u003e\u003cstrong data-start=\"1379\" data-end=\"1405\"\u003eWhat fuel does it use?\u003c\/strong\u003e\u003cbr data-start=\"1405\" data-end=\"1408\"\u003eNatural gas (propane conversion kits may be available through a qualified HVAC technician if needed).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1514\" data-end=\"1700\"\u003e\n\u003cp data-start=\"1516\" data-end=\"1700\"\u003e\u003cstrong data-start=\"1516\" data-end=\"1552\"\u003eDoes it require special venting?\u003c\/strong\u003e\u003cbr data-start=\"1552\" data-end=\"1555\"\u003eYes — condensing boilers typically use \u003cstrong data-start=\"1596\" data-end=\"1633\"\u003ePVC\/CPVC or polypropylene venting\u003c\/strong\u003e due to lower exhaust temperatures and to manage condensate safely.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"1702\" data-end=\"1726\"\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cul data-start=\"1727\" data-end=\"2546\"\u003e\n\u003cli data-start=\"1727\" data-end=\"1912\"\u003e\n\u003cp data-start=\"1729\" data-end=\"1912\"\u003e\u003cstrong data-start=\"1729\" data-end=\"1761\"\u003eAnnual professional service:\u003c\/strong\u003e Have a licensed HVAC technician inspect and tune components before the heating season — burner, heat exchanger, combustion air system, and controls.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1913\" data-end=\"2030\"\u003e\n\u003cp data-start=\"1915\" data-end=\"2030\"\u003e\u003cstrong data-start=\"1915\" data-end=\"1945\"\u003eCheck condensate drainage:\u003c\/strong\u003e Ensure condensate lines are clear and properly pitched to avoid clogs or freezing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2031\" data-end=\"2164\"\u003e\n\u003cp data-start=\"2033\" data-end=\"2164\"\u003e\u003cstrong data-start=\"2033\" data-end=\"2061\"\u003eMonitor system pressure:\u003c\/strong\u003e Keep boiler pressure within manufacturer-recommended range; adjust with an expansion tank if needed.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2165\" data-end=\"2298\"\u003e\n\u003cp data-start=\"2167\" data-end=\"2298\"\u003e\u003cstrong data-start=\"2167\" data-end=\"2211\"\u003eClean air intake \u0026amp; exhaust terminations:\u003c\/strong\u003e Keep vents and air intake areas free of debris and obstructions for safe combustion.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2299\" data-end=\"2404\"\u003e\n\u003cp data-start=\"2301\" data-end=\"2404\"\u003e\u003cstrong data-start=\"2301\" data-end=\"2323\"\u003eInspect for leaks:\u003c\/strong\u003e Periodically check around valves, joints, and fittings for water or gas leaks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2405\" data-end=\"2546\"\u003e\n\u003cp data-start=\"2407\" data-end=\"2546\"\u003e\u003cstrong data-start=\"2407\" data-end=\"2434\"\u003eMaintain water quality:\u003c\/strong\u003e Use corrosion inhibitors and flush the hydronic system periodically to reduce scale and prolong equipment life\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Weil-McLain","offers":[{"title":"Default Title","offer_id":45440113246399,"sku":"W383500737","price":6484.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/Weil-McLain-Ultra-Series-4-299000-BTU-Condensing-Gas-Boiler-Main-Image_39.jpg?v=1775023168"},{"product_id":"weil-mclain-ultra-series-4-155000-btu-condensing-gas-boiler","title":"Weil-McLain Ultra Series 4 155,000 BTU Condensing Gas Boiler","description":"\u003ch2\u003eWeil-McLain Ultra Series 4 155,000 BTU Condensing Gas Boiler\u003c\/h2\u003e\n\u003cp\u003eWeil-McLain is a leading North American Brand of hydronic comfort heating systems for residential, commercial and institutional buildings, since 1881. Contractors, engineers, architects, homeowners, and facility managers alike rely on Weil-McLain boilers for their comfort heating needs. Installed in homes, offices, schools, restaurants, hotels, and other facilities throughout North America, the Weil-McLain brand is among the most trusted and often used in the building industry.\u003c\/p\u003e\n\u003ch5\u003eFeatures\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eCast aluminum coated heat exchanger\u003c\/li\u003e\n\u003cli\u003eDesigned to operate in low temperature condensing applications\u003c\/li\u003e\n\u003cli\u003eOutdoor reset and domestic hot water priority\u003c\/li\u003e\n\u003cli\u003eModulates with 5:1 turn-down ratio\u003c\/li\u003e\n\u003cli\u003eHigh grade stainless steel burner features quiet operation\u003c\/li\u003e\n\u003cli\u003eU-Control gives the power for easy set-up and maintenance\u003c\/li\u003e\n\u003cli\u003eMultiple set-up and zone options\u003c\/li\u003e\n\u003cli\u003eSystem sensing recognizes system and outdoor temperatures\u003c\/li\u003e\n\u003cli\u003eTemperature management for up to three different set-points\u003c\/li\u003e\n\u003cli\u003eControl multiple boilers from a single control panel\u003c\/li\u003e\n\u003cli\u003eStandard screen messages provide service alerts and maintenance reminders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"0\" data-end=\"30\"\u003eWhat Our Experts Think\u003c\/h5\u003e\n\u003cul data-start=\"31\" data-end=\"781\"\u003e\n\u003cli data-start=\"31\" data-end=\"274\"\u003e\n\u003cp data-start=\"33\" data-end=\"274\"\u003e\u003cstrong data-start=\"33\" data-end=\"76\"\u003eHigh-efficiency condensing performance:\u003c\/strong\u003e The \u003cstrong data-start=\"81\" data-end=\"145\"\u003eWeil-McLain Ultra Series 4 155,000 BTU Condensing Gas Boiler\u003c\/strong\u003e delivers \u003cstrong data-start=\"155\" data-end=\"174\"\u003eup to ~95% AFUE\u003c\/strong\u003e, converting more fuel into usable heat and cutting energy costs compared to conventional boilers.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"275\" data-end=\"456\"\u003e\n\u003cp data-start=\"277\" data-end=\"456\"\u003e\u003cstrong data-start=\"277\" data-end=\"302\"\u003ePowerful heat output:\u003c\/strong\u003e With \u003cstrong data-start=\"308\" data-end=\"334\"\u003e155,000 BTU\/h capacity\u003c\/strong\u003e, it’s ideal for \u003cstrong data-start=\"351\" data-end=\"414\"\u003elarge homes, multi-family units, or light commercial spaces\u003c\/strong\u003e needing robust, reliable hydronic heat.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"457\" data-end=\"594\"\u003e\n\u003cp data-start=\"459\" data-end=\"594\"\u003e\u003cstrong data-start=\"459\" data-end=\"487\"\u003eQuiet, smooth operation:\u003c\/strong\u003e Engineered for stable combustion and reduced noise, offering dependable comfort with minimal disruption.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"595\" data-end=\"781\"\u003e\n\u003cp data-start=\"597\" data-end=\"781\"\u003e\u003cstrong data-start=\"597\" data-end=\"630\"\u003eDurable and service-friendly:\u003c\/strong\u003e Weil-McLain’s design emphasizes \u003cstrong data-start=\"663\" data-end=\"712\"\u003elong-lasting components, corrosion resistance\u003c\/strong\u003e, and accessible service points — making maintenance easier for pros.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"783\" data-end=\"802\"\u003eProduct Q\u0026amp;A\u003c\/h5\u003e\n\u003cul data-start=\"803\" data-end=\"1458\"\u003e\n\u003cli data-start=\"803\" data-end=\"991\"\u003e\n\u003cp data-start=\"805\" data-end=\"991\"\u003e\u003cstrong data-start=\"805\" data-end=\"837\"\u003eWhat type of boiler is this?\u003c\/strong\u003e\u003cbr data-start=\"837\" data-end=\"840\"\u003eA \u003cstrong data-start=\"844\" data-end=\"885\"\u003ehigh-efficiency condensing gas boiler\u003c\/strong\u003e that uses advanced heat-recovery technology to extract extra heat from combustion gases before venting.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"992\" data-end=\"1168\"\u003e\n\u003cp data-start=\"994\" data-end=\"1168\"\u003e\u003cstrong data-start=\"994\" data-end=\"1035\"\u003eWhat heating systems does it support?\u003c\/strong\u003e\u003cbr data-start=\"1035\" data-end=\"1038\"\u003eWorks with \u003cstrong data-start=\"1051\" data-end=\"1133\"\u003ehydronic baseboard, radiant floor, fan-coils, and chilled-water reheat systems\u003c\/strong\u003e where hot water heating is used.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1169\" data-end=\"1298\"\u003e\n\u003cp data-start=\"1171\" data-end=\"1298\"\u003e\u003cstrong data-start=\"1171\" data-end=\"1197\"\u003eWhat fuel does it use?\u003c\/strong\u003e\u003cbr data-start=\"1197\" data-end=\"1200\"\u003eNatural gas (propane conversion kits are often available separately via qualified installers).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1299\" data-end=\"1458\"\u003e\n\u003cp data-start=\"1301\" data-end=\"1458\"\u003e\u003cstrong data-start=\"1301\" data-end=\"1337\"\u003eDoes it require special venting?\u003c\/strong\u003e\u003cbr data-start=\"1337\" data-end=\"1340\"\u003eYes — condensing boilers use \u003cstrong data-start=\"1371\" data-end=\"1424\"\u003elow-temperature PVC\/CPVC or polypropylene venting\u003c\/strong\u003e due to cool exhaust temperatures.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"1460\" data-end=\"1484\"\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cul data-start=\"1485\" data-end=\"2215\"\u003e\n\u003cli data-start=\"1485\" data-end=\"1638\"\u003e\n\u003cp data-start=\"1487\" data-end=\"1638\"\u003e\u003cstrong data-start=\"1487\" data-end=\"1514\"\u003eAnnual HVAC inspection:\u003c\/strong\u003e Have a licensed technician service the boiler yearly — check heat exchanger, burner, controls, and combustion efficiency.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1639\" data-end=\"1748\"\u003e\n\u003cp data-start=\"1641\" data-end=\"1748\"\u003e\u003cstrong data-start=\"1641\" data-end=\"1668\"\u003eCheck condensate drain:\u003c\/strong\u003e Keep the condensate line clear and flowing to avoid buildup or freeze issues.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1749\" data-end=\"1867\"\u003e\n\u003cp data-start=\"1751\" data-end=\"1867\"\u003e\u003cstrong data-start=\"1751\" data-end=\"1779\"\u003eMonitor system pressure:\u003c\/strong\u003e Maintain proper boiler pressure and make adjustments per the manufacturer’s guidance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1868\" data-end=\"1984\"\u003e\n\u003cp data-start=\"1870\" data-end=\"1984\"\u003e\u003cstrong data-start=\"1870\" data-end=\"1899\"\u003eClean air intake \u0026amp; vents:\u003c\/strong\u003e Remove debris around air inlet and exhaust terminations to ensure safe combustion.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1985\" data-end=\"2087\"\u003e\n\u003cp data-start=\"1987\" data-end=\"2087\"\u003e\u003cstrong data-start=\"1987\" data-end=\"2009\"\u003eInspect for leaks:\u003c\/strong\u003e Periodically check around valves, pumps, and piping for water or gas leaks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2088\" data-end=\"2215\"\u003e\n\u003cp data-start=\"2090\" data-end=\"2215\"\u003e\u003cstrong data-start=\"2090\" data-end=\"2117\"\u003eMaintain water quality:\u003c\/strong\u003e Use proper inhibitors and periodic flushing to keep the hydronic system clean and corrosion-free.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Weil-McLain","offers":[{"title":"Default Title","offer_id":45440113311935,"sku":"W383500735","price":3756.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/Weil-McLain-Ultra-Series-4-155000-BTU-Condensing-Gas-Boiler-Main-Image_24.jpg?v=1775023170"},{"product_id":"weil-mclain-cga-3-series-3-67000-btu-cast-iron-natural-gas-boiler","title":"Weil-McLain CGa-3 Series 3 67,000 BTU Cast Iron Natural Gas Boiler","description":"\u003ch2\u003eWeil-McLain CGa-3 Series 3 67,000 BTU Cast Iron Natural Gas Boiler \u003c\/h2\u003e\n\u003cp\u003eWeil-McLain is a leading North American Brand of hydronic comfort heating systems for residential, commercial and institutional buildings, since 1881. Contractors, engineers, architects, homeowners, and facility managers alike rely on Weil-McLain boilers for their comfort heating needs. Installed in homes, offices, schools, restaurants, hotels, and other facilities throughout North America, the Weil-McLain brand is among the most trusted and often used in the building industry.\u003c\/p\u003e\n\u003ch5\u003eFeatures\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eNatural draft, silent operation\u003c\/li\u003e\n\u003cli\u003eIntegrated Boiler Control Module with intermittent electronic ignition system and indicator\/diagnostic lights\u003c\/li\u003e\n\u003cli\u003eCompact design saves valuable living space\u003c\/li\u003e\n\u003cli\u003eBuilt-in low water cut off functionality\u003c\/li\u003e\n\u003cli\u003eStainless steel burners for quieter ignition, longer life, and improved combustion\u003c\/li\u003e\n\u003cli\u003eGas fired water boiler with cast iron sections\u003c\/li\u003e\n\u003cli\u003eEasily accessible controls, vertical flueways, and top cleaning for easy and quick servicing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"0\" data-end=\"30\"\u003eWhat Our Experts Think\u003c\/h5\u003e\n\u003cul data-start=\"31\" data-end=\"695\"\u003e\n\u003cli data-start=\"31\" data-end=\"248\"\u003e\n\u003cp data-start=\"33\" data-end=\"248\"\u003e\u003cstrong data-start=\"33\" data-end=\"58\"\u003eReliable heat source:\u003c\/strong\u003e The \u003cstrong data-start=\"63\" data-end=\"133\"\u003eWeil-McLain CGa-3 Series 3 67,000 BTU Cast Iron Natural Gas Boiler\u003c\/strong\u003e delivers \u003cstrong data-start=\"143\" data-end=\"187\"\u003econsistent, comfortable hydronic heating\u003c\/strong\u003e for homes or small commercial spaces with moderate demand.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"249\" data-end=\"423\"\u003e\n\u003cp data-start=\"251\" data-end=\"423\"\u003e\u003cstrong data-start=\"251\" data-end=\"280\"\u003eDurable cast-iron design:\u003c\/strong\u003e Cast iron sections provide long life, excellent thermal retention, and resistance to corrosion — a proven choice for dependable performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"424\" data-end=\"554\"\u003e\n\u003cp data-start=\"426\" data-end=\"554\"\u003e\u003cstrong data-start=\"426\" data-end=\"450\"\u003eEfficient operation:\u003c\/strong\u003e Designed for steady, reliable heat output with sensible efficiency for older or conventional systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"555\" data-end=\"695\"\u003e\n\u003cp data-start=\"557\" data-end=\"695\"\u003e\u003cstrong data-start=\"557\" data-end=\"581\"\u003eTrusted brand build:\u003c\/strong\u003e Weil-McLain’s CGa models are well regarded for durability, easy serviceability, and straightforward installation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"697\" data-end=\"716\"\u003eProduct Q\u0026amp;A\u003c\/h5\u003e\n\u003cul data-start=\"717\" data-end=\"1331\"\u003e\n\u003cli data-start=\"717\" data-end=\"868\"\u003e\n\u003cp data-start=\"719\" data-end=\"868\"\u003e\u003cstrong data-start=\"719\" data-end=\"751\"\u003eWhat type of boiler is this?\u003c\/strong\u003e\u003cbr data-start=\"751\" data-end=\"754\"\u003eA \u003cstrong data-start=\"758\" data-end=\"797\"\u003ecast-iron, natural gas-fired boiler\u003c\/strong\u003e that heats water for baseboard, radiator, or hydronic heating loops.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"869\" data-end=\"1012\"\u003e\n\u003cp data-start=\"871\" data-end=\"1012\"\u003e\u003cstrong data-start=\"871\" data-end=\"904\"\u003eWhat is the heating capacity?\u003c\/strong\u003e\u003cbr data-start=\"904\" data-end=\"907\"\u003e\u003cstrong data-start=\"909\" data-end=\"928\"\u003e67,000 BTU\/hour\u003c\/strong\u003e — suitable for many \u003cstrong data-start=\"949\" data-end=\"978\"\u003emid-size homes and spaces\u003c\/strong\u003e depending on load calculations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1013\" data-end=\"1173\"\u003e\n\u003cp data-start=\"1015\" data-end=\"1173\"\u003e\u003cstrong data-start=\"1015\" data-end=\"1048\"\u003eDoes it need special venting?\u003c\/strong\u003e\u003cbr data-start=\"1048\" data-end=\"1051\"\u003eYes — like most natural gas boilers, it requires \u003cstrong data-start=\"1102\" data-end=\"1131\"\u003eproper chimney or venting\u003c\/strong\u003e per code and manufacturer instructions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1174\" data-end=\"1331\"\u003e\n\u003cp data-start=\"1176\" data-end=\"1331\"\u003e\u003cstrong data-start=\"1176\" data-end=\"1214\"\u003eIs this good for new construction?\u003c\/strong\u003e\u003cbr data-start=\"1214\" data-end=\"1217\"\u003eYes — especially where a \u003cstrong data-start=\"1244\" data-end=\"1272\"\u003erobust, cast-iron boiler\u003c\/strong\u003e is desired for longevity and traditional hydronic systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"1333\" data-end=\"1357\"\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cul data-start=\"1358\" data-end=\"2062\"\u003e\n\u003cli data-start=\"1358\" data-end=\"1529\"\u003e\n\u003cp data-start=\"1360\" data-end=\"1529\"\u003e\u003cstrong data-start=\"1360\" data-end=\"1392\"\u003eAnnual professional tune-up:\u003c\/strong\u003e Have a qualified HVAC technician inspect the boiler before each heating season — check the burner, heat exchanger, controls, and flue.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1530\" data-end=\"1638\"\u003e\n\u003cp data-start=\"1532\" data-end=\"1638\"\u003e\u003cstrong data-start=\"1532\" data-end=\"1565\"\u003eCheck pressure \u0026amp; water level:\u003c\/strong\u003e Monitor system pressure and water level weekly; adjust as recommended.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1639\" data-end=\"1735\"\u003e\n\u003cp data-start=\"1641\" data-end=\"1735\"\u003e\u003cstrong data-start=\"1641\" data-end=\"1672\"\u003eBleed radiators\/baseboards:\u003c\/strong\u003e Release trapped air to maintain efficient heat distribution.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1736\" data-end=\"1839\"\u003e\n\u003cp data-start=\"1738\" data-end=\"1839\"\u003e\u003cstrong data-start=\"1738\" data-end=\"1758\"\u003eInspect venting:\u003c\/strong\u003e Ensure flue, chimney, and air intake remain clear of debris and safely sealed.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1840\" data-end=\"1967\"\u003e\n\u003cp data-start=\"1842\" data-end=\"1967\"\u003e\u003cstrong data-start=\"1842\" data-end=\"1872\"\u003eFlush system periodically:\u003c\/strong\u003e Sediment can accumulate over time; periodic flushing helps preserve efficiency and lifespan.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1968\" data-end=\"2062\"\u003e\n\u003cp data-start=\"1970\" data-end=\"2062\"\u003e\u003cstrong data-start=\"1970\" data-end=\"1990\"\u003eWatch for leaks:\u003c\/strong\u003e Check around valves, fittings, and sections for signs of water leakage.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Weil-McLain","offers":[{"title":"Default Title","offer_id":45440113410239,"sku":"W381359072","price":2257.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/Weil-McLain-CGa-3-Series-3-67000-BTU-Cast-Iron-Natural-Gas-Boiler-Main-Image_24.jpg?v=1775023172"},{"product_id":"weil-mclain-ultra-series-4-80000-btu-condensing-gas-boiler","title":"Weil-McLain Ultra Series 4 80,000 BTU Condensing Gas Boiler - W383500732","description":"\u003ch2\u003eWeil-McLain Ultra Series 4 80,000 BTU Condensing Gas Boiler - W383500732\u003c\/h2\u003e\n\u003cp\u003eWeil-McLain is a leading North American Brand of hydronic comfort heating systems for residential, commercial and institutional buildings, since 1881. Contractors, engineers, architects, homeowners, and facility managers alike rely on Weil-McLain boilers for their comfort heating needs. Installed in homes, offices, schools, restaurants, hotels, and other facilities throughout North America, the Weil-McLain brand is among the most trusted and often used in the building industry.\u003c\/p\u003e\n\u003ch5\u003eFeatures\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eCast aluminum coated heat exchanger\u003c\/li\u003e\n\u003cli\u003eDesigned to operate in low temperature condensing applications\u003c\/li\u003e\n\u003cli\u003eOutdoor reset and domestic hot water priority\u003c\/li\u003e\n\u003cli\u003eModulates with 5:1 turn-down ratio\u003c\/li\u003e\n\u003cli\u003eHigh grade stainless steel burner features quiet operation\u003c\/li\u003e\n\u003cli\u003eU-Control gives the power for easy set-up and maintenance\u003c\/li\u003e\n\u003cli\u003eMultiple set-up and zone options\u003c\/li\u003e\n\u003cli\u003eSystem sensing recognizes system and outdoor temperatures\u003c\/li\u003e\n\u003cli\u003eTemperature management for up to three different set-points\u003c\/li\u003e\n\u003cli\u003eControl multiple boilers from a single control panel\u003c\/li\u003e\n\u003cli\u003eStandard screen messages provide service alerts and maintenance reminders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"133\" data-end=\"161\"\u003eWhat Our Experts Think\u003c\/h5\u003e\n\u003cul data-start=\"162\" data-end=\"738\"\u003e\n\u003cli data-start=\"162\" data-end=\"327\"\u003e\n\u003cp data-start=\"164\" data-end=\"327\"\u003e\u003cstrong data-start=\"164\" data-end=\"202\"\u003eHigh-efficiency condensing design:\u003c\/strong\u003e Delivers \u003cstrong data-start=\"212\" data-end=\"230\"\u003eup to 95% AFUE\u003c\/strong\u003e performance, meaning more heat delivered with less fuel — excellent for reducing energy costs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"328\" data-end=\"465\"\u003e\n\u003cp data-start=\"330\" data-end=\"465\"\u003e\u003cstrong data-start=\"330\" data-end=\"355\"\u003eRight-sized capacity:\u003c\/strong\u003e \u003cstrong data-start=\"356\" data-end=\"370\"\u003e80,000 BTU\u003c\/strong\u003e output suits mid- to large-sized homes or commercial spaces with significant heating demand.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"466\" data-end=\"618\"\u003e\n\u003cp data-start=\"468\" data-end=\"618\"\u003e\u003cstrong data-start=\"468\" data-end=\"496\"\u003eDurable, reliable build:\u003c\/strong\u003e Weil-McLain’s Ultra Series is known for robust construction and long-term reliability in everyday heating applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"619\" data-end=\"738\"\u003e\n\u003cp data-start=\"621\" data-end=\"738\"\u003e\u003cstrong data-start=\"621\" data-end=\"652\"\u003eQuiet and smooth operation:\u003c\/strong\u003e Engineered for stable combustion and reduced noise compared with older boiler models.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"740\" data-end=\"757\"\u003eProduct Q\u0026amp;A\u003c\/h5\u003e\n\u003cul data-start=\"758\" data-end=\"1365\"\u003e\n\u003cli data-start=\"758\" data-end=\"911\"\u003e\n\u003cp data-start=\"760\" data-end=\"911\"\u003e\u003cstrong data-start=\"760\" data-end=\"792\"\u003eWhat type of boiler is this?\u003c\/strong\u003e\u003cbr data-start=\"792\" data-end=\"795\"\u003eA \u003cstrong data-start=\"799\" data-end=\"840\"\u003ehigh-efficiency condensing gas boiler\u003c\/strong\u003e that recovers heat from exhaust gases to improve overall efficiency.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"912\" data-end=\"1100\"\u003e\n\u003cp data-start=\"914\" data-end=\"1100\"\u003e\u003cstrong data-start=\"914\" data-end=\"954\"\u003eWhat is the recommended application?\u003c\/strong\u003e\u003cbr data-start=\"954\" data-end=\"957\"\u003eDesigned for \u003cstrong data-start=\"972\" data-end=\"1000\"\u003eforced hot water heating\u003c\/strong\u003e in residential and light commercial systems (hydronic baseboard, radiators, or in-floor heating).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1101\" data-end=\"1197\"\u003e\n\u003cp data-start=\"1103\" data-end=\"1197\"\u003e\u003cstrong data-start=\"1103\" data-end=\"1129\"\u003eWhat fuel does it use?\u003c\/strong\u003e\u003cbr data-start=\"1129\" data-end=\"1132\"\u003eNatural gas (verify model configuration if converting to LP).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1198\" data-end=\"1365\"\u003e\n\u003cp data-start=\"1200\" data-end=\"1365\"\u003e\u003cstrong data-start=\"1200\" data-end=\"1245\"\u003eDoes it require a special venting system?\u003c\/strong\u003e\u003cbr data-start=\"1245\" data-end=\"1248\"\u003eYes — condensing boilers typically use \u003cstrong data-start=\"1289\" data-end=\"1304\"\u003ePVC or CPVC\u003c\/strong\u003e for low-temperature venting because of cooler exhaust gases.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"1367\" data-end=\"1389\"\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cul data-start=\"1390\" data-end=\"2018\"\u003e\n\u003cli data-start=\"1390\" data-end=\"1541\"\u003e\n\u003cp data-start=\"1392\" data-end=\"1541\"\u003e\u003cstrong data-start=\"1392\" data-end=\"1424\"\u003eAnnual professional tune-up:\u003c\/strong\u003e Have a qualified HVAC technician inspect and clean the burner, heat exchanger, and controls before heating season.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1542\" data-end=\"1665\"\u003e\n\u003cp data-start=\"1544\" data-end=\"1665\"\u003e\u003cstrong data-start=\"1544\" data-end=\"1571\"\u003eCheck condensate drain:\u003c\/strong\u003e Ensure the condensate line is clear and draining properly to avoid blockages and corrosion.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1666\" data-end=\"1772\"\u003e\n\u003cp data-start=\"1668\" data-end=\"1772\"\u003e\u003cstrong data-start=\"1668\" data-end=\"1689\"\u003eMonitor pressure:\u003c\/strong\u003e Keep system pressure within manufacturer-recommended range and adjust as needed.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1773\" data-end=\"1896\"\u003e\n\u003cp data-start=\"1775\" data-end=\"1896\"\u003e\u003cstrong data-start=\"1775\" data-end=\"1806\"\u003eClean air intake and vents:\u003c\/strong\u003e Clear dust and debris from intake vents and combustion air openings for safe operation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1897\" data-end=\"2018\"\u003e\n\u003cp data-start=\"1899\" data-end=\"2018\"\u003e\u003cstrong data-start=\"1899\" data-end=\"1921\"\u003eInspect for leaks:\u003c\/strong\u003e Periodically check around fittings, valves, and connections for any signs of water or gas leaks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Weil-McLain","offers":[{"title":"Default Title","offer_id":45440113475775,"sku":"W383500732","price":2962.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/Weil-McLain-Ultra-Series-4-80000-BTU-Condensing-Gas-Boiler-Main-Image_23.jpg?v=1775023174"}],"url":"https:\/\/www.mybackyardzone.com\/collections\/weil-mclain.oembed","provider":"Your Outdoor Setup Starts Here","version":"1.0","type":"link"}