{"product_id":"mrcool-diy-5th-gen-3-zone-48-000-btu-ductless-mini-split-air-conditioner-heat-pump-12k-18k-18k-diym348hp","title":"MRCOOL DIY 5th Gen 3-Zone 48,000 BTU Ductless Mini Split Air Conditioner \u0026 Heat Pump with Pre-Charged Line Sets (12K+18K+18K),  - DIYM348HP","description":"\u003ch2\u003eMRCOOL DIY 5th Gen 3-Zone 48,000 BTU Ductless Mini Split Air Conditioner \u0026amp; Heat Pump with Pre-Charged Line Sets (12K+18K+18K),  - DIYM348HP\u003c\/h2\u003e\n\u003cp\u003eTake control of your comfort with the \u003cstrong\u003eMRCOOL DIY 5th Gen Multi-Zone Mini Split System\u003c\/strong\u003e - the easiest \u003cmeta charset=\"utf-8\"\u003eand most affordable way to get powerful, energy-saving heating and cooling without hiring a pro.Whether it’s hot summer days or freezing winter nights, the MRCOOL DIY Mini Split keeps your home comfortable and your energy bills low. \u003cstrong\u003eSmart. Simple. Affordable.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch5\u003eFeatures\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree Rooms, Perfect Comfort:\u003c\/strong\u003e Heat or cool \u003cmeta charset=\"utf-8\"\u003e \u003cstrong\u003ethree spaces that are 500 sq. ft., 750 sq. ft. and 750 sq. ft.\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003eeach\u003c\/span\u003e with independent temperature control for personalized comfort.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTruly DIY-Friendly\u003c\/strong\u003e: Forget expensive installs - \u003cstrong\u003eno HVAC license or special tools required\u003c\/strong\u003e. If you can use basic hand tools, you can do this.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo Hassle Setup:\u003c\/strong\u003e Comes with \u003cstrong\u003epre-charged Quick-Connect line sets\u003c\/strong\u003e, so there’s no messy refrigerant handling or vacuuming. Just connect and enjoy.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear-Round Savings:\u003c\/strong\u003e Boasting up to \u003cstrong\u003e21.8 SEER2 cooling efficiency\u003c\/strong\u003e and \u003cstrong\u003e10 HSPF2-4 heating performance\u003c\/strong\u003e, this system delivers serious energy savings.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt for Every Season\u003c\/strong\u003e: Stay cozy even in the dead of winter - reliable heating works all the way down to \u003cstrong\u003e-13°F.\u003c\/strong\u003e\u003cstrong\u003e.\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eWhat our Experts Think\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli data-start=\"27\" data-end=\"186\"\u003e\n\u003cp data-start=\"29\" data-end=\"186\"\u003e\u003cstrong data-start=\"29\" data-end=\"65\"\u003eHigh‑Capacity Multi‑Zone Comfort\u003c\/strong\u003e – 48,000 BTU system supports three zones (12K + 18K + 18K) for personalized cooling and heating across multiple rooms.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"187\" data-end=\"338\"\u003e\n\u003cp data-start=\"189\" data-end=\"338\"\u003e\u003cstrong data-start=\"189\" data-end=\"218\"\u003eDIY‑Friendly Installation\u003c\/strong\u003e – Pre‑charged line sets simplify setup and reduce installation time, ideal for experienced homeowners and pros alike.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"339\" data-end=\"480\"\u003e\n\u003cp data-start=\"341\" data-end=\"480\"\u003e\u003cstrong data-start=\"341\" data-end=\"376\"\u003eInverter Efficiency Performance\u003c\/strong\u003e – Variable‑speed compressor adapts output to demand, improving energy efficiency and comfort control.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"481\" data-end=\"626\"\u003e\n\u003cp data-start=\"483\" data-end=\"626\"\u003e\u003cstrong data-start=\"483\" data-end=\"515\"\u003eAll‑Season Heating \u0026amp; Cooling\u003c\/strong\u003e – Heat pump design delivers stable performance year‑round, keeping interiors comfortable in diverse weather.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"627\" data-end=\"744\"\u003e\n\u003cp data-start=\"629\" data-end=\"744\"\u003e\u003cstrong data-start=\"629\" data-end=\"658\"\u003eQuiet, Balanced Operation\u003c\/strong\u003e – Engineered for low‑noise airflow and steady temperature maintenance across zones.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"745\" data-end=\"851\"\u003e\n\u003cp data-start=\"747\" data-end=\"851\"\u003e\u003cstrong data-start=\"747\" data-end=\"780\"\u003eEco‑Conscious Refrigerant Use\u003c\/strong\u003e – Designed with modern refrigerant for reduced environmental impact.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"852\" data-end=\"967\"\u003e\n\u003cp data-start=\"854\" data-end=\"967\"\u003e\u003cstrong data-start=\"854\" data-end=\"876\"\u003eDurable \u0026amp; Reliable\u003c\/strong\u003e – Built for long‑term use with dependable components and strong outdoor unit construction.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\n\u003cbr\u003eQ\u0026amp;A\u003c\/h5\u003e\n\u003cp data-start=\"116\" data-end=\"309\"\u003e\u003cstrong data-start=\"116\" data-end=\"143\"\u003eQ: What is this system?\u003c\/strong\u003e\u003cbr data-start=\"143\" data-end=\"146\"\u003eA: A 48,000 BTU (4 ton) DIY 5th Gen ductless mini split heat pump with three indoor zones (12 K + 18 K + 18 K) and pre‑charged line sets for easier installation.\u003c\/p\u003e\n\u003cp data-start=\"311\" data-end=\"442\"\u003e\u003cstrong data-start=\"311\" data-end=\"347\"\u003eQ: What refrigerant does it use?\u003c\/strong\u003e\u003cbr data-start=\"347\" data-end=\"350\"\u003eA: Eco‑friendly R‑454B refrigerant for improved efficiency and lower environmental impact.\u003c\/p\u003e\n\u003cp data-start=\"444\" data-end=\"608\"\u003e\u003cstrong data-start=\"444\" data-end=\"479\"\u003eQ: How efficient is the system?\u003c\/strong\u003e\u003cbr data-start=\"479\" data-end=\"482\"\u003eA: Rated up to 21.8 SEER2 and around 10 HSPF2‑4, providing strong cooling and heating performance with reduced energy costs.\u003c\/p\u003e\n\u003cp data-start=\"610\" data-end=\"794\"\u003e\u003cstrong data-start=\"610\" data-end=\"639\"\u003eQ: Is it easy to install?\u003c\/strong\u003e\u003cbr data-start=\"639\" data-end=\"642\"\u003eA: Yes — includes pre‑charged Quick Connect line sets that eliminate refrigerant handling and most vacuuming, making it DIY‑friendly with basic tools.\u003c\/p\u003e\n\u003cp data-start=\"796\" data-end=\"993\"\u003e\u003cstrong data-start=\"796\" data-end=\"838\"\u003eQ: What comfort features are included?\u003c\/strong\u003e\u003cbr data-start=\"838\" data-end=\"841\"\u003eA: Provides efficient year‑round heating and cooling per zone, quiet inverter operation, and smart controls with motion sensing and app\/voice support.\u003c\/p\u003e\n\u003ch5\u003e\n\u003cbr\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli data-start=\"93\" data-end=\"206\"\u003e\n\u003cp data-start=\"95\" data-end=\"206\"\u003e\u003cstrong data-start=\"95\" data-end=\"131\"\u003eClean or replace filters monthly\u003c\/strong\u003e in \u003cem data-start=\"135\" data-end=\"153\"\u003eall indoor units\u003c\/em\u003e to ensure airflow, comfort, and energy efficiency.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"207\" data-end=\"296\"\u003e\n\u003cp data-start=\"209\" data-end=\"296\"\u003e\u003cstrong data-start=\"209\" data-end=\"249\"\u003eDeep‑clean indoor coils twice a year\u003c\/strong\u003e to maintain cooling and heating performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"297\" data-end=\"391\"\u003e\n\u003cp data-start=\"299\" data-end=\"391\"\u003e\u003cstrong data-start=\"299\" data-end=\"346\"\u003eCheck and clear condensate drains regularly\u003c\/strong\u003e to prevent clogs, leaks, and mold buildup.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"392\" data-end=\"501\"\u003e\n\u003cp data-start=\"394\" data-end=\"501\"\u003e\u003cstrong data-start=\"394\" data-end=\"461\"\u003eKeep indoor units and outdoor condenser free of dust and debris\u003c\/strong\u003e for proper airflow and heat exchange.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"502\" data-end=\"611\"\u003e\n\u003cp data-start=\"504\" data-end=\"611\"\u003e\u003cstrong data-start=\"504\" data-end=\"541\"\u003eInspect outdoor unit fins and fan\u003c\/strong\u003e; gently clean and straighten fins as needed to maximize efficiency.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"612\" data-end=\"715\"\u003e\n\u003cp data-start=\"614\" data-end=\"715\"\u003e\u003cstrong data-start=\"614\" data-end=\"666\"\u003eWatch for unusual noises, odors, or weak airflow\u003c\/strong\u003e and address promptly to prevent bigger issues.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"716\" data-end=\"839\"\u003e\n\u003cp data-start=\"718\" data-end=\"839\"\u003e\u003cstrong data-start=\"718\" data-end=\"762\"\u003eSchedule annual professional maintenance\u003c\/strong\u003e to check refrigerant balance, inverter function, and electrical connections.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MRCOOL","offers":[{"title":"16 ft. + 16 ft. + 16 ft.","offer_id":54162231558428,"sku":"DIYM348HPW17D00","price":6484.0,"currency_code":"USD","in_stock":true},{"title":"25 ft. + 25 ft. + 25 ft.","offer_id":54162231591196,"sku":"DIYM348HPW17D27","price":6587.0,"currency_code":"USD","in_stock":true},{"title":"35 ft. + 35 ft. + 35 ft.","offer_id":54162231623964,"sku":"DIYM348HPW17D53","price":7301.0,"currency_code":"USD","in_stock":true},{"title":"50 ft. + 50 ft. + 50 ft.","offer_id":54162231656732,"sku":"DIYM348HPW17D78","price":7564.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/0622\/4924\/files\/MRCOOL-3-zone-48-55k-condenser-line-set-Premium_Home_Source_6cf39e48-4e28-43d8-8f54-3fd1d479b26b.png?v=1780126004","url":"https:\/\/www.mybackyardzone.com\/products\/mrcool-diy-5th-gen-3-zone-48-000-btu-ductless-mini-split-air-conditioner-heat-pump-12k-18k-18k-diym348hp","provider":"Backup Power Made Simple","version":"1.0","type":"link"}