{"product_id":"mrcool-diy-hyper-heat-18k-btu-mini-split-system-230v","title":"MRCOOL® DIY® Hyper Heat 18K BTU Mini Split System 230V","description":"\u003ch4 data-end=\"300\" data-start=\"213\"\u003e\u003cimg height=\"49\" width=\"246\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0919\/2525\/0380\/files\/MRCOOL_Logo.png?v=1749484134\"\u003e\u003c\/h4\u003e\n\u003ch4\u003eMODEL: \u003cspan\u003eDIYHH-18-HP-WM-230D25-O\u003c\/span\u003e\u003cspan class=\"sui-font-normal\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003ch2 data-start=\"60\" data-end=\"141\"\u003eBuilt for Winter. \u003cbr data-start=\"101\" data-end=\"104\"\u003eExtreme Cold Heating. Powerful Cooling. DIY Simple.\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp data-start=\"604\" data-end=\"669\"\u003eStill worried your home won't stay warm when temperatures plunge?\u003c\/p\u003e\n\u003cp data-end=\"611\" data-start=\"244\"\u003eThe MRCOOL® DIY® Hyper Heat 18K BTU Mini Split System was built for homeowners who refuse to let winter dictate their comfort. While many heating systems struggle in extreme cold, Hyper Heat technology continues delivering reliable heating in temperatures as low as \u003cstrong\u003e-22°F\u003c\/strong\u003e, helping keep your space warm, comfortable, and energy efficient when you need it most.\u003c\/p\u003e\n\u003cp data-end=\"1117\" data-start=\"613\"\u003ePerfect for living rooms, large bedrooms, home offices, cabins, basements, workshops, and other spaces up to\u003cstrong\u003e 800 sq ft\u003c\/strong\u003e, this complete system combines a MRCOOL® DIY® Hyper Heat Condenser and a MRCOOL® DIY® 18K 5th Generation Wall-Mounted Air Handler to provide dependable heating, cooling, and year-round comfort. The included 25 ft QuickConnect® line set comes pre-charged with environmentally friendly R-454B refrigerant, helping simplify installation without specialized HVAC tools.\u003c\/p\u003e\n\u003cp data-end=\"1389\" data-start=\"1119\"\u003eAdvanced DC inverter technology, impressive 21.2 SEER2 efficiency, SmartHVAC® app control, Amazon Alexa®, Google Assistant®, and the included DIYPRO® cable give you complete control, outstanding efficiency, and dependable comfort in every season.\u003c\/p\u003e\n\u003cp data-end=\"1535\" data-start=\"1391\"\u003eWhether it's a freezing winter morning or the hottest day of summer, Hyper Heat delivers the confidence of knowing your comfort system is ready.\u003c\/p\u003e\n\u003cp data-end=\"1618\" data-start=\"1537\"\u003eWarm when others struggle. Cool when others quit. Built for extreme climates.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1ykf3bd\" data-start=\"494\" data-end=\"514\"\u003eWhy You'll Love It\u003c\/h2\u003e\n\u003cp data-start=\"516\" data-end=\"928\"\u003e✅ Reliable heating in temperatures as low as -22°F\u003cbr data-end=\"57\" data-start=\"54\"\u003e✅ Ideal for spaces between 550–800 sq ft\u003cbr data-end=\"104\" data-start=\"101\"\u003e✅ High-efficiency 21.2 SEER2 performance\u003cbr data-end=\"151\" data-start=\"148\"\u003e✅ Simplified DIY installation with QuickConnect® technology\u003cbr data-end=\"217\" data-start=\"214\"\u003e✅ SmartHVAC® app control from anywhere\u003cbr data-end=\"258\" data-start=\"255\"\u003e✅ Compatible with Amazon Alexa® \u0026amp; Google Assistant®\u003cbr data-end=\"316\" data-start=\"313\"\u003e✅ Gold Fin® corrosion-resistant condenser protection\u003cbr data-end=\"371\" data-start=\"368\"\u003e✅ Includes 25 ft pre-charged QuickConnect® line set\u003cbr data-end=\"429\" data-start=\"426\"\u003e✅ Energy-saving DC inverter technology\u003c\/p\u003e\n\u003ch2 data-end=\"1776\" data-start=\"1766\" data-section-id=\"e8c5a5\"\u003eBest For\u003c\/h2\u003e\n\u003cp data-end=\"1776\" data-start=\"1766\" data-section-id=\"e8c5a5\"\u003eLiving Rooms • Large Bedrooms • Home Offices • Cabins • Basements • Workshops • Studios • Cold Climate Homes\u003c\/p\u003e\n\u003ch2 data-end=\"1776\" data-start=\"1766\" data-section-id=\"e8c5a5\"\u003eWhat's Included\u003c\/h2\u003e\n\u003cp\u003e1 × MRCOOL® DIY® Hyper Heat 18K BTU Condenser \u003cbr data-start=\"942\" data-end=\"945\"\u003e1 × MRCOOL® DIY® 18K BTU 5th Gen Wall-Mounted Air Handler \u003cbr data-start=\"1020\" data-end=\"1023\"\u003e1 × 25 ft QuickConnect® Line Set (1\/4\" × 1\/2\")\u003cbr data-start=\"1069\" data-end=\"1072\"\u003e1 × MRCOOL® Remote Control\u003cbr data-start=\"1098\" data-end=\"1101\"\u003e1 × DIYPRO® Cable\u003c\/p\u003e\n\u003ch5 data-start=\"1747\" data-end=\"1777\"\u003eSpecifications\u003c\/h5\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoverage Area\u003c\/td\u003e\n\u003ctd\u003e550–800 sq ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCooling Capacity\u003c\/td\u003e\n\u003ctd\u003e18,000 BTU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeating Capacity\u003c\/td\u003e\n\u003ctd\u003e18,000 BTU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e208\/230V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eZone Type\u003c\/td\u003e\n\u003ctd\u003eSingle Zone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSEER2\u003c\/td\u003e\n\u003ctd\u003e21.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEER2\u003c\/td\u003e\n\u003ctd\u003e12.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSPF2-4\u003c\/td\u003e\n\u003ctd\u003e11.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSPF2-5\u003c\/td\u003e\n\u003ctd\u003e8.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRefrigerant\u003c\/td\u003e\n\u003ctd\u003eR-454B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInverter Technology\u003c\/td\u003e\n\u003ctd\u003eDC Inverter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompressor Type\u003c\/td\u003e\n\u003ctd\u003eRotary\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSound Level (Outdoor)\u003c\/td\u003e\n\u003ctd\u003e58 dB(A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Cooling Temperature\u003c\/td\u003e\n\u003ctd\u003e-22°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Heating Temperature\u003c\/td\u003e\n\u003ctd\u003e-22°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWiFi Compatible\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoice Control\u003c\/td\u003e\n\u003ctd\u003eAlexa® \u0026amp; Google Assistant®\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLine Set Length\u003c\/td\u003e\n\u003ctd\u003e25 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Line Set Length\u003c\/td\u003e\n\u003ctd\u003e75 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLine Sizes\u003c\/td\u003e\n\u003ctd\u003e1\/4\" Liquid \/ 1\/2\" Suction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eENERGY STAR®, AHRI, ETL, UL, CSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e7-Year Compressor \/ 5-Year Parts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2 data-end=\"242\" data-start=\"168\"\u003eRoom Size \u0026amp; BTU Guide \u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eBTU Rating\u003c\/th\u003e\n\u003cth\u003eRecommended Space\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e12K BTU\u003c\/td\u003e\n\u003ctd\u003e350–550 sq ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e18K BTU (This System)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e550–800 sq ft\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp data-end=\"1405\" data-start=\"1191\"\u003eRoom size recommendations may vary depending on insulation quality, ceiling height, climate zone, window exposure, and room layout.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1mhkus2\" data-start=\"3470\" data-end=\"3494\"\u003eNeed More Heating \u0026amp; Cooling Power?\u003c\/h2\u003e\n\u003cp data-start=\"3496\" data-end=\"3555\"\u003eExplore larger systems for bigger spaces or higher heating and cooling demands:\u003c\/p\u003e\n\u003cul data-start=\"3557\" data-end=\"3631\"\u003e\n\u003cli data-section-id=\"1hgg0j4\" data-start=\"3593\" data-end=\"3610\"\u003e\n\u003ca href=\"https:\/\/www.coolheatdirect.com\/collections\/mrcool%C2%AE-diy-multi-zone-systems\"\u003eDIY® Multi-Zone Systems\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1hgg0j4\" data-start=\"3593\" data-end=\"3610\"\u003e\u003ca href=\"https:\/\/www.coolheatdirect.com\/collections\/universal-condenser\"\u003eUniversal® Central Systems\u003c\/a\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"1hgg0j4\" data-start=\"3593\" data-end=\"3610\"\u003e\u003ca href=\"https:\/\/www.coolheatdirect.com\/collections\/central-ducted-hyper-heat\"\u003eCentral Ducted Systems\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eInstallation\u003c\/h5\u003e\n\u003ch2 data-start=\"3743\" data-end=\"3768\"\u003eInstallation Notes\u003c\/h2\u003e\n\u003cp\u003e• Designed for simplified installation using MRCOOL® QuickConnect® technology\u003cbr data-end=\"1228\" data-start=\"1225\"\u003e• No vacuum pump or specialized HVAC equipment required\u003cbr data-end=\"1286\" data-start=\"1283\"\u003e• Local electrical requirements and building codes may vary\u003cbr data-end=\"1348\" data-start=\"1345\"\u003e• Professional electrical work may still be recommended depending on local regulations\u003cbr data-end=\"1437\" data-start=\"1434\"\u003e• Always review the installation manual before purchase and installation\u003c\/p\u003e\n\u003ch2\u003eInstallation \u0026amp; Manuals \u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0919\/2525\/0380\/files\/Brochure_Hyper_Heat.pdf?v=1780773050\"\u003eProduct Brochure\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0919\/2525\/0380\/files\/Install_Manual_HH.pdf?v=1780773055\"\u003eInstallation Manual\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0919\/2525\/0380\/files\/Warranty_HH.pdf?v=1780773038\"\u003eWarranty Document\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2 data-section-id=\"1g738f2\" data-start=\"4138\" data-end=\"4160\"\u003eWarranty Information\u003c\/h2\u003e\n\u003cul data-start=\"4172\" data-end=\"4224\"\u003e\n\u003cli data-section-id=\"1xn7pci\" data-start=\"4172\" data-end=\"4200\"\u003e7-Year Compressor Warranty\u003c\/li\u003e\n\u003cli data-section-id=\"fpaj9r\" data-start=\"4201\" data-end=\"4224\"\u003e5-Year Parts Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"4292\" data-end=\"4387\"\u003ePlease refer to the Warranty Document above for full coverage details, terms, and registration requirements.\u003c\/p\u003e\n\u003ch2 data-section-id=\"vraprf\" data-start=\"4394\" data-end=\"4414\"\u003eShipping \u0026amp; Returns\u003c\/h2\u003e\n\u003cul data-start=\"4416\" data-end=\"4709\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"83q9qn\" data-start=\"4416\" data-end=\"4493\"\u003eFree U.S. curbside delivery within the Lower 48 States on qualifying orders\u003c\/li\u003e\n\u003cli data-section-id=\"1nxr3e9\" data-start=\"4494\" data-end=\"4528\"\u003eOrders ship from U.S. warehouses\u003c\/li\u003e\n\u003cli data-section-id=\"1alu1ob\" data-start=\"4529\" data-end=\"4591\"\u003eDelivery times may vary by location and carrier availability\u003c\/li\u003e\n\u003cli data-section-id=\"1p6rdbq\" data-start=\"4592\" data-end=\"4661\"\u003eReturns accepted within 30 days for unused and uninstalled products\u003c\/li\u003e\n\u003cli data-section-id=\"atro48\" data-start=\"4662\" data-end=\"4709\" data-is-last-node=\"\"\u003eApproved returns may be subject to a restocking fee\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MRCOOL","offers":[{"title":"Default Title","offer_id":57743357280588,"sku":"DIYHH-18-HP-WM-230D25-O","price":3099.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0919\/2525\/0380\/files\/Hyper_Heat_2_2026_07_40_08_PM.png?v=1780773358","url":"https:\/\/www.coolheatdirect.com\/products\/mrcool-diy-hyper-heat-18k-btu-mini-split-system-230v","provider":"Cool Heat Direct","version":"1.0","type":"link"}