{"product_id":"mrcool-diy-5th-gen-9000-btu-mini-split","title":"MRCOOL DIY 5th Gen 9,000 BTU Mini-Split | Up to 400 Sq Ft, 115V, No Technician Required","description":"\u003cdiv class=\"hh-buyer-fit\" data-karr-block=\"last30days-2026-06-02\"\u003e\n  \u003cp\u003e\u003cstrong\u003eBest for:\u003c\/strong\u003e Small rooms, offices, cabins, and insulated spaces where a properly sized 9K BTU DIY mini split makes sense.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eWhy people buy it:\u003c\/strong\u003e Heating and cooling without hiring an HVAC crew for the pre-charged line-set work.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eWatch out for:\u003c\/strong\u003e DIY does not mean no planning. Confirm sizing, line-set routing, condensate drainage, mounting, and electrical work before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eMost mini-splits require a licensed HVAC technician just to get refrigerant in the lines. The MRCOOL DIY 5th Gen eliminates that entirely. Pre-charged quick-connect line sets mean you can go from unboxing to cold air without a vacuum pump, specialized tools, or a $500 service call. For a cabin, workshop, tiny home, or any space up to 400 square feet that needs reliable year-round climate control, this is the unit most off-grid builders reach for first.\u003c\/p\u003e\n\n\u003ch2\u003eMRCOOL DIY 9,000 BTU Key Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrue DIY installation\u003c\/strong\u003e — pre-charged R-454B line set with quick-connect fittings; no vacuum pump, no refrigerant handling license required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeats down to -13°F\u003c\/strong\u003e — operates as a heat pump in sub-zero temps, making it viable for year-round use in cold climates\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e23.6 SEER2 efficiency rating\u003c\/strong\u003e — significantly more efficient than window units or electric resistance heat; runs well on off-grid solar setups\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e115V operation\u003c\/strong\u003e — plugs into a standard 20-amp circuit, no 240V panel upgrade required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiFi and app control\u003c\/strong\u003e — control via the MRCOOL Smart HVAC app on iOS or Android; compatible with Google Assistant and Amazon Alexa\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGold Fin condenser coil\u003c\/strong\u003e — corrosion-resistant coating extends outdoor unit lifespan in humid or coastal environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA2L leak detection sensor\u003c\/strong\u003e — built-in alarm alerts you to refrigerant leaks; required for R-454B compliance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e54 dBA noise level\u003c\/strong\u003e — quieter than most window units; comfortable for sleeping spaces\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCooling Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9,000 BTU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeating Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10,000 BTU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCoverage Area\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 400 sq ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSEER2\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e23.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEER2\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHSPF2 (Region IV)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e11.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e115V, 60Hz, 1PH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Breaker Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRefrigerant\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eR-454B (pre-charged)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIncluded Line Set Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Line Set Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e82 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMin Operating Temp (Heating)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-13°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNoise Level\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e54 dBA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDIY-09-HP-WM-115D25-O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUL, ETL, AHRI, Energy Star\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 years parts \/ 7 years compressor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIndoor wall-mount air handler\u003c\/li\u003e\n\u003cli\u003eOutdoor condenser unit (pre-charged with R-454B)\u003c\/li\u003e\n\u003cli\u003e25 ft pre-charged quick-connect line set\u003c\/li\u003e\n\u003cli\u003eSmart HVAC Controller Module (WiFi)\u003c\/li\u003e\n\u003cli\u003eDIYPro cable (eliminates need for electrical conduit)\u003c\/li\u003e\n\u003cli\u003eRemote control\u003c\/li\u003e\n\u003cli\u003eInstallation hardware and mounting plate\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MRCOOL","offers":[{"title":"Default Title","offer_id":48526269939967,"sku":"DIY-09-HP-WM-115D25-O","price":2329.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0815\/5450\/5983\/files\/mrcool_5th-gen_introducing_xl_fu3o61.jpg?v=1778795206","url":"https:\/\/homesteadheavy.com\/products\/mrcool-diy-5th-gen-9000-btu-mini-split","provider":"Homestead Heavy","version":"1.0","type":"link"}