{"product_id":"mrcool-diyhh-18-hyper-heat-18k-mini-split-complete-diy-bundle-5th-gen-230v","title":"MRCOOL DIYHH-18 Hyper Heat 18K Mini Split Complete DIY Bundle – 5th Gen (230V)","description":"\u003cp\u003e\u003cstrong\u003ePRODUCT DESCRIPTION \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eMRCOOL DIYHH-18 Hyper Heat 18K Complete DIY Mini Split Bundle (230V)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eModel bundle:\u003c\/strong\u003e MRD-DIYHH18-WM18-25\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eIntroducing New 2025 \u003c\/strong\u003ethe newest generation of true cold-climate \u003cstrong\u003eMRCOOL®\u003c\/strong\u003e comfort—the \u003cstrong\u003eDIYHH-18 Hyper Heat 18K Mini Split.\u003c\/strong\u003e This \u003cstrong\u003e5th Gen\u003c\/strong\u003e system delivers powerful year-round performance, pushing full heating output down to \u003cstrong\u003e-22°F,\u003c\/strong\u003e something standard mini-splits simply cannot achieve. Designed specifically for homeowners and installers who want a reliable \u003cstrong\u003eDIY 18K Hyper Heat condenser\u003c\/strong\u003e, this bundle uses the \u003cstrong\u003eNo-Vac® QuickConnect®\u003c\/strong\u003e pre-charged line set, eliminating the need for vacuum pumps, refrigerant handling, EPA certification, or special tools.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis \u003cstrong\u003e18,000 BTU\u003c\/strong\u003e single-zone system \u003cstrong\u003eefficiently\u003c\/strong\u003e heats and cools up to \u003cstrong\u003e800 sq ft\u003c\/strong\u003e, making it ideal for garages, bonus rooms, apartments, basements, shops, master bedrooms, offices, cabins, or outbuildings. The advanced Hyper Heat inverter technology dynamically adjusts compressor RPM to maintain stable performance in extreme weather instead of cycling like a traditional heat pump.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe included \u003cstrong\u003e25 ft QuickConnect®\u003c\/strong\u003e line set is factory-sealed and \u003cstrong\u003epre-charged\u003c\/strong\u003e with \u003cstrong\u003eR-454B\u003c\/strong\u003e, delivering future-ready refrigerant technology with excellent low-temp capacity. Combined with the \u003cstrong\u003eSmartHVAC\u003c\/strong\u003e® App, native Wi-Fi, and full voice control through \u003cstrong\u003eAmazon Alexa®\u003c\/strong\u003e and \u003cstrong\u003eGoogle Assistant®\u003c\/strong\u003e, you can control your system from anywhere. Gold Fin® corrosion protection ensures durability in coastal and humid regions, while \u003cstrong\u003eultra-quiet\u003c\/strong\u003e operation keeps noise under \u003cstrong\u003e58 dBA.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWith premium features like \u003cstrong\u003eAuto mode\u003c\/strong\u003e, Dry mode, Sleep mode, Timer, and Auto-Restart after power loss, the \u003cstrong\u003eMRCOOL DIYHH-18 Hyper Heat\u003c\/strong\u003e complete bundle is a true plug-and-play system designed for long-term performance. Every kit includes superior warranty support—\u003cstrong\u003e7-year compressor\u003c\/strong\u003e + \u003cstrong\u003e5-year parts\u003c\/strong\u003e, with \u003cstrong\u003eoptional\u003c\/strong\u003e \u003cstrong\u003eLifetime Replacement through MRCOOL® Care registration.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e  \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Hyper Heat vs Standard Mini Splits (Real-world Benefit)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStandard DIY mini splits start to lose heating output below ~25°F.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe MRCOOL DIYHH-18 Hyper Heat continues producing usable BTUs down to -22°F, thanks to:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eDual-stage inverter logic\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eR-454B refrigerant performance curve\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOptimized EEV metering\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCold-climate coil design\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e If you live where winter hits freezing… Hyper Heat is the correct choice.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eINCLUDES IN THIS COMPLETE DIY BUNDLE:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e✔ \u003cstrong\u003eDIYHH-18-HP-C-230D25-O\u003c\/strong\u003e – Hyper Heat 18K Outdoor Condenser (R-454B)\u003cbr\u003e✔\u003cspan\u003e\u003cstrong\u003eDIYCASSETTE18HP-230D25-O\u003c\/strong\u003e \u003c\/span\u003e–\u003cspan\u003eMRCOOL® DIY® Series 5th Gen OuttaSight® 18K BTU 230V One-Way Ceiling Cassette\u003c\/span\u003e\u003cbr\u003e✔ \u003cstrong\u003eDIY25-1412 – 25ft\u003c\/strong\u003e Pre-Charged QuickConnect® Line Set\u003cbr\u003e✔ \u003cstrong\u003eDIYPRO® Communication Cable\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3 data-start=\"139\" data-end=\"166\"\u003eLine Set Length Info\u003c\/h3\u003e\n\u003cp data-start=\"167\" data-end=\"353\"\u003e\u003cem\u003e\u003cstrong data-start=\"167\" data-end=\"353\"\u003eThis system includes a standard 25 ft. line set. Extended line set options add an additional line set, couplers, and a longer control wire for installations requiring extra distance.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e \u003cstrong\u003eWHY CHOOSE THIS BUNDLE\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eTrue Hyper Heat performance to -22°F\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReal DIY installation — no vacuuming, no gauges\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFactory-sealed Quick Connect system\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eConsistent room temperature (no rapid on\/off cycling)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLower energy bills vs space heaters or window ACs\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eQuiet operation with premium inverter control\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFuture-proof R-454B refrigerant\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePremium build for garages, shops, offices, cabins, bonus rooms\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThis isn’t an entry-level mini split — it is the tool you use when you want to control the cold, not survive it.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWORKS WITH:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cspan\u003e✔ DIY-18-HP-WMAH-230D25-O Wall Mount Air Handler\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e✔ DIYCASSETTE18HP-230D25-O OuttaSight® Ceiling Cassette\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e \u003cstrong\u003eIDEAL USES\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eMaster bedrooms\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eGarage conversions or bonus rooms\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBasements \u0026amp; attics\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHome gyms \u0026amp; studios\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOffices or retail suites\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBarndominiums\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePole barns \u0026amp; detached buildings\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCabins \u0026amp; mountain homes\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAirbnb \u0026amp; rental units where comfort = reviews\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eIf you heat with space heaters, oil, or propane — Hyper Heat will save you money the first winter.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSPECIFICATIONS\u003c\/strong\u003e (CONDENSER – DIYHH-18-HP-C-230D25-O)\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eBTU\u003c\/strong\u003e Heating \/ Cooling: 18,000\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e: 208\/230V\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003ePhase\u003c\/strong\u003e: 1\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eCycles\u003c\/strong\u003e: 60 Hz\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eSEER2\u003c\/strong\u003e: 21.2\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eHSPF2\u003c\/strong\u003e: 11\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eMax Coverage\u003c\/strong\u003e: 800 sq ft\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eRefrigerant\u003c\/strong\u003e: R-454B\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eInverter\u003c\/strong\u003e: Yes — Hyper Heat\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eMin Ambient Heat:\u003c\/strong\u003e -22°F\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eMin Ambient Cool:\u003c\/strong\u003e -22°F\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNoise Level:\u003c\/strong\u003e 58 dBA\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eCompressor Type:\u003c\/strong\u003e Rotary\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eMetering Device:\u003c\/strong\u003e EEV\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eEnergy Star:\u003c\/strong\u003e Yes\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eAHRI Certified\u003c\/strong\u003e: Yes\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eELECTRICAL\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eMax Fuse\u003c\/strong\u003e \/ Breaker: 25A\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eMinimum Circuit Ampacity\u003c\/strong\u003e (MCA): 19A\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eLine Set Included:\u003c\/strong\u003e 25ft QuickConnect® No-Vac\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eLiquid Line\u003c\/strong\u003e: 1\/4\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eSuction Line:\u003c\/strong\u003e 1\/2\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eMax Line Length:\u003c\/strong\u003e 75 ft\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e (Ceiling Cassette – DIYCASSETTE18HP-230D25-O)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eBTU:\u003c\/strong\u003e 12,000 or 18,000 depending install\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eCoverage:\u003c\/strong\u003e up to 550 sq ft\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eMount Type:\u003c\/strong\u003e Flush ceiling 16” joists\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eDecibel:\u003c\/strong\u003e 24–41 dBA (Ultra Quiet)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eAir Direction:\u003c\/strong\u003e 1-way low profile\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eFilter:\u003c\/strong\u003e Reusable\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eModes:\u003c\/strong\u003e Auto \/ Sleep \/ Dry \/ Fan Only\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eSmart Home:\u003c\/strong\u003e Alexa • Google Assistant • Wi-Fi App\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eBreaker Size:\u003c\/strong\u003e 15A dedicated\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eMCA\u003c\/strong\u003e: 3A\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e \u003cstrong\u003eELECTRICAL NOTE\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eEach outdoor unit requires its own dedicated power circuit.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis prevents installation mistakes and warranty issues.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e \u003cstrong\u003eHYPER HEAT VS STANDARD DIY\u003c\/strong\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStandard DIY units are excellent above freezing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eHyper Heat maintains real heating output down to -22°F using a stronger inverter, advanced coil temperature management, and higher torque compressor logic.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIf your winter dips below 20°F — choose Hyper Heat.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003cstrong\u003eFREQUENTLY ASKED QUESTIONS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e \u003cstrong\u003eCan I install this myself?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eYes.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis bundle uses factory-sealed No-Vac® QuickConnect® line sets.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNo EPA license, no nitrogen purge, no vacuum pump, no gauges.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need to buy refrigerant?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNo.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eEverything is pre-charged at the factory.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003cstrong\u003eIs this better than a window unit or portable AC?\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNot even close.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHyper Heat systems are:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eQuieter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMore efficient\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSafer\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBuilt to run year-round\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePermanent HVAC, not a temporary appliance\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e \u003cstrong\u003eWill it heat in extreme cold?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eYes.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFull usable heating down to -22°F, unlike standard heat pumps.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003cstrong\u003eCan I use this in a rental or Airbnb?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAbsolutely.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt increases property value and lowers complaints.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill this work in a detached shop or garage?\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eYes — Hyper Heat is designed for problem spaces.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003cbr\u003e\u003cstrong\u003eWHY BUY FROM US\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWe are USA’s #1 Most Trusted MRCOOL Dealer — specializing only in MRCOOL.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eYou’re not buying from a random dropshipper.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOur HVAC team will verify sizing, breaker requirements, and line sets before you order.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e Call  us anytime with questions.\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWe will make sure you get the exact system you need — not what a competitor guesses.\u003c\/span\u003e\u003c\/p\u003e","brand":"MRCOOL DIY Direct","offers":[{"title":"Standard 25'Feet","offer_id":49176856756451,"sku":"MC-DIY-HH18-CASS18-25","price":3719.0,"currency_code":"USD","in_stock":false},{"title":"Extended to 41' Feet","offer_id":49176856789219,"sku":"MC-DIY-HH18-CASS18-26","price":4342.0,"currency_code":"USD","in_stock":false},{"title":"Extended to 50' Feet","offer_id":49176856821987,"sku":"MC-DIY-HH18-CASS18-27","price":4392.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0706\/8752\/3043\/files\/18kBTUCeilingCassetteAirHandler.png?v=1780844472","url":"https:\/\/freedomhvacsupply.com\/products\/mrcool-diyhh-18-hyper-heat-18k-mini-split-complete-diy-bundle-5th-gen-230v","provider":"Freedom HVAC Supply","version":"1.0","type":"link"}