{"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":54162689294620,"sku":"W381359076","price":3660.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/0622\/4924\/files\/Weil-McLain-CGa-5-Series-3-133000-BTU-Cast-Iron-Natural-Gas-Boiler-Main-Image_15.jpg?v=1780152216","url":"https:\/\/www.mybackyardzone.com\/products\/weil-mclain-cga-5-series-3-133000-btu-cast-iron-natural-gas-boiler","provider":"Backup Power Made Simple","version":"1.0","type":"link"}