{"title":"MRCOOL","description":null,"products":[{"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; 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Plan those before you buy.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eThe 12,000 BTU is the most popular size in the MRCOOL DIY line for a reason. It handles a single large room, a cabin great room, a converted garage, or a 550-square-foot off-grid living space on a standard 115V circuit. The 5th Generation adds R-454B refrigerant with a built-in leak sensor, improved efficiency ratings, and the same pre-charged quick-connect line set that made the original DIY a category favorite. No HVAC contractor needed at any point in the process.\u003c\/p\u003e\n\n\u003ch2\u003eMRCOOL DIY 12,000 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; quick-connect fittings that don't require a vacuum pump or refrigerant handling certification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeats down to -13°F\u003c\/strong\u003e — heat pump operation in sub-zero conditions; viable for year-round off-grid heating in cold climates\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20+ SEER2 efficiency\u003c\/strong\u003e — pairs well with solar setups from Renogy or BLUETTI; significantly lower operating cost than resistance heating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e115V operation\u003c\/strong\u003e — runs on a standard 20-amp household circuit; no panel upgrade needed in most installations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiFi and voice control\u003c\/strong\u003e — MRCOOL Smart HVAC app (iOS\/Android), Google Assistant and Alexa compatible\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGold Fin condenser coil\u003c\/strong\u003e — corrosion-resistant coating; rated for coastal and high-humidity environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA2L refrigerant leak sensor\u003c\/strong\u003e — built-in alarm monitors for R-454B leaks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuiet operation\u003c\/strong\u003e — indoor air handler designed for low noise; suitable for bedrooms and living areas\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\u003e12,000 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\u003e12,000 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 550 sq ft\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\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\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDIY-12-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\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":48526269972735,"sku":"DIY-12-HP-WM-115D25-O","price":2359.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0815\/5450\/5983\/files\/Hero_zqosk5.png?v=1778795222"},{"product_id":"mrcool-diy-5th-gen-18000-btu-mini-split","title":"MRCOOL DIY 5th Gen 18,000 BTU Mini-Split | Up to 800 Sq Ft, 230V, 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 Larger rooms, workshops, cabins, and additions where 18K BTU capacity is a better fit than undersizing.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eWhy people buy it:\u003c\/strong\u003e Strong ductless heating and cooling with a pre-charged DIY line-set system.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eWatch out for:\u003c\/strong\u003e Confirm load, electrical service, line-set length, wall placement, and drainage. A mini split is DIY-friendly, not idiot-proof.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eAt 18,000 BTU, this unit handles mid-size off-grid homes, large open-plan cabins, and workshops up to 800 square feet. The step up to 230V gives you more output capacity while keeping installation within DIY reach: the pre-charged quick-connect line set still requires no vacuum pump, no refrigerant certification, and no licensed HVAC contractor. If you're heating and cooling a full living space on solar power, the 18K is where the size-to-efficiency ratio starts making serious sense.\u003c\/p\u003e\n\n\u003ch2\u003eMRCOOL DIY 18,000 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 specialized tools or HVAC license needed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeats down to -13°F\u003c\/strong\u003e — full heat pump operation in extreme cold; engineered for year-round use in northern climates\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-efficiency 230V operation\u003c\/strong\u003e — runs on a dedicated 30-amp, 230V circuit; higher output without sacrificing efficiency\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiFi and app control\u003c\/strong\u003e — MRCOOL Smart HVAC app on iOS and Android; Google Assistant and Alexa compatible\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGold Fin condenser coil\u003c\/strong\u003e — corrosion-resistant coating for long outdoor unit life in humidity, rain, and salt air\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA2L refrigerant leak detection\u003c\/strong\u003e — built-in alarm sensor; 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Confirm the load and have a qualified electrician handle the circuit if needed.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eThe 24,000 BTU DIY covers a full small home or a large open off-grid space up to 1,050 square feet. This is the unit for homesteaders who want whole-home single-zone coverage without hiring an HVAC contractor at any point in the process. The pre-charged quick-connect line set keeps installation within reach of any careful builder, and the 5th Generation's cold-climate heating performance makes it a genuine year-round solution from the deep south to the northern tier.\u003c\/p\u003e\n\n\u003ch2\u003eMRCOOL DIY 24,000 BTU Key Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrue DIY installation\u003c\/strong\u003e — pre-charged R-454B quick-connect line set; no vacuum pump, no refrigerant license, no contractor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeats down to -13°F\u003c\/strong\u003e — full heat pump output in extreme cold conditions; designed for cold-climate year-round use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCovers up to 1,050 sq ft\u003c\/strong\u003e — full small home or large open-plan cabin coverage from a single wall-mount unit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e230V dedicated circuit\u003c\/strong\u003e — requires a 240V 30-amp breaker; standard in most homes and cabins with a proper electrical panel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiFi and voice control\u003c\/strong\u003e — MRCOOL Smart HVAC app, Google Assistant and Alexa compatible\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGold Fin condenser coil\u003c\/strong\u003e — corrosion-resistant; 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Confirm head sizing, line-set runs, condenser placement, and electrical before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eA single-zone system heats one area. A 2-zone system lets you set a different temperature in the bedroom than in the living space, or control a cabin and an attached garage from one outdoor condenser. The MRCOOL DIY 5th Gen multi-zone platform brings the same pre-charged quick-connect installation that made the single-zone unit famous to multi-room setups. One outdoor unit, two independently controlled indoor air handlers, no HVAC contractor required at any point.\u003c\/p\u003e\n\n\u003ch2\u003eMRCOOL DIY 2-Zone System Key Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo independent zones\u003c\/strong\u003e — each indoor air handler has its own thermostat and operates independently; set different temps in different rooms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrue DIY installation\u003c\/strong\u003e — pre-charged R-454B quick-connect line sets for each zone; no vacuum pump, no refrigerant certification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeats down to -13°F\u003c\/strong\u003e — full cold-climate heat pump performance across all zones\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e230V single condenser\u003c\/strong\u003e — one outdoor unit serves both zones; cleaner installation than two separate systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiFi and app control\u003c\/strong\u003e — MRCOOL Smart HVAC app; control each zone independently from your phone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGold Fin condenser coil\u003c\/strong\u003e — corrosion-resistant; rated for outdoor exposure in all climates\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnergy Star certified select configurations\u003c\/strong\u003e — check your specific BTU combination for rebate eligibility\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpandable to 6 zones\u003c\/strong\u003e — MRCOOL multi-zone condensers scale from 2 to 6 indoor units on the same platform\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eZone Count\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 zones\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e208-230V, 60Hz, 1PH\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 line sets)\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\u003eAvailable Air Handler Sizes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9K, 12K, 18K BTU (mixed combinations available)\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\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\u003e1x outdoor multi-zone condenser unit\u003c\/li\u003e\n\u003cli\u003e2x indoor wall-mount air handlers (BTU sizes per selected configuration)\u003c\/li\u003e\n\u003cli\u003e2x pre-charged quick-connect line sets (25 ft each)\u003c\/li\u003e\n\u003cli\u003eSmart HVAC Controller Modules (WiFi)\u003c\/li\u003e\n\u003cli\u003eRemote controls for each zone\u003c\/li\u003e\n\u003cli\u003eInstallation hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible Add-Ons\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLine set covers (hide exterior line runs)\u003c\/li\u003e\n\u003cli\u003eReplacement filters (reusable; recommended annual cleaning)\u003c\/li\u003e\n\u003cli\u003eExtended line sets (available up to 82 ft per zone)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MRCOOL","offers":[{"title":"Default Title","offer_id":48526270169343,"sku":"MRCOOL-DIY-2ZONE","price":3230.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0815\/5450\/5983\/files\/hyper_heat_condenser_lit_r2ekeb_aaa56f69-b765-43da-869c-4bd6a9417625.png?v=1778795287"},{"product_id":"mrcool-diy-5th-gen-3-zone-mini-split","title":"MRCOOL DIY 5th Gen 3-Zone Mini-Split System | Climate Control for Three Rooms, 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 Multi-room cabins, additions, and small homes where three independent zones make sense.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eWhy people buy it:\u003c\/strong\u003e Zoned comfort without ductwork and without opening refrigerant lines.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eWatch out for:\u003c\/strong\u003e Three-zone systems require real planning. If you are not comfortable sizing rooms and routing multiple line sets, get help before buying.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eThree rooms, three different temperatures, one outdoor unit, one installation project. The MRCOOL DIY 5th Gen 3-zone system is built for off-grid homes and homesteads where different spaces have different needs: a cooler bedroom, a warmer main living area, a workshop that only runs when you're out there. Each air handler operates independently. Each uses the same pre-charged quick-connect line set that makes MRCOOL the go-to DIY mini-split for people who want to do this themselves without compromising on system quality.\u003c\/p\u003e\n\n\u003ch2\u003eMRCOOL DIY 3-Zone System Key Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree independent zones\u003c\/strong\u003e — each air handler runs independently with its own temperature setting; no zone affects another\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrue DIY installation\u003c\/strong\u003e — pre-charged R-454B quick-connect line sets for all three zones; no vacuum pump, no refrigerant license\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeats down to -13°F\u003c\/strong\u003e — cold-climate heat pump across all zones simultaneously\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle 230V outdoor condenser\u003c\/strong\u003e — one outdoor unit for all three zones; less exterior equipment, less installation work\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiFi and per-zone app control\u003c\/strong\u003e — MRCOOL Smart HVAC app; control and schedule each zone from your phone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGold Fin condenser coil\u003c\/strong\u003e — corrosion-resistant outdoor unit for all climate conditions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrong upsell path to 4-zone\u003c\/strong\u003e — if you need a fourth room later, MRCOOL's multi-zone platform scales\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eZone Count\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 zones\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal System Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 18,000 BTU (condenser)\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 750 sq ft total (distributed across zones)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e208-230V, 60Hz, 1PH\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 line sets)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondenser Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDIY-MULTI3-18HP230D-O\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\u003eAvailable Air Handler Sizes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9K, 12K BTU per zone\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\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\u003e1x 18,000 BTU outdoor multi-zone condenser (DIY-MULTI3-18HP230D-O)\u003c\/li\u003e\n\u003cli\u003e3x indoor wall-mount air handlers (BTU sizes per selected configuration)\u003c\/li\u003e\n\u003cli\u003e3x pre-charged quick-connect line sets (25 ft each)\u003c\/li\u003e\n\u003cli\u003eSmart HVAC Controller Modules (WiFi) for each zone\u003c\/li\u003e\n\u003cli\u003eRemote controls for each zone\u003c\/li\u003e\n\u003cli\u003eInstallation hardware\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MRCOOL","offers":[{"title":"Default Title","offer_id":48526270202111,"sku":"MRCOOL-DIY-3ZONE","price":3500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0815\/5450\/5983\/files\/hyper_heat_condenser_lit_r2ekeb_23dbbb22-1f6a-478b-9253-e634a2f00f21.png?v=1778795303"},{"product_id":"mrcool-diy-5th-gen-4-zone-mini-split","title":"MRCOOL DIY 5th Gen 4-Zone Mini-Split System | Whole-Home Coverage, 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 Larger multi-room projects where ductwork is not practical and zone control matters.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eWhy people buy it:\u003c\/strong\u003e Four ductless zones from one DIY-focused MRCOOL system.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eWatch out for:\u003c\/strong\u003e This is the point where DIY can turn into design risk. Confirm room loads, head placement, line-set paths, electrical, and code requirements.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eThe 4-zone system is where MRCOOL's DIY platform starts to replace a full central HVAC system for off-grid and rural homes. Four independently controlled zones means bedroom-level comfort tuning across a full homestead without running ductwork through walls or hiring a contractor for any part of the project. One outdoor condenser handles up to 27,000 BTU total capacity across four rooms, and every air handler connects via the same pre-charged quick-connect line set that defines the DIY line.\u003c\/p\u003e\n\n\u003ch2\u003eMRCOOL DIY 4-Zone System Key Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour independent zones\u003c\/strong\u003e — each room runs at its own setpoint; bedrooms, living areas, offices, and workshops all independently controlled\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrue DIY installation\u003c\/strong\u003e — pre-charged R-454B quick-connect line sets for all four zones; no HVAC contractor at any step\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUp to 27,000 BTU total capacity\u003c\/strong\u003e — covers a full multi-room off-grid home from a single outdoor unit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeats down to -13°F\u003c\/strong\u003e — cold-climate heat pump performance across all four zones simultaneously\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle 230V outdoor condenser\u003c\/strong\u003e — one unit handles the whole home; cleaner than multiple split systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePer-zone WiFi and app control\u003c\/strong\u003e — MRCOOL Smart HVAC app; set schedules and temperatures per zone remotely\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGold Fin condenser coil\u003c\/strong\u003e — corrosion-resistant outdoor unit; rated for all climate conditions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentral HVAC alternative\u003c\/strong\u003e — no ductwork required; install in any room with exterior wall access\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eZone Count\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 zones\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal System Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 27,000 BTU (condenser)\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 1,125 sq ft total (distributed across zones)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e208-230V, 60Hz, 1PH\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 line sets)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondenser Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDIY-MULTI4-27HP230D-O\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\u003eAvailable Air Handler Sizes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9K, 12K, 18K BTU per zone\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\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\u003e1x 27,000 BTU outdoor multi-zone condenser (DIY-MULTI4-27HP230D-O)\u003c\/li\u003e\n\u003cli\u003e4x indoor wall-mount air handlers (BTU sizes per selected configuration)\u003c\/li\u003e\n\u003cli\u003e4x pre-charged quick-connect line sets (25 ft each)\u003c\/li\u003e\n\u003cli\u003eSmart HVAC Controller Modules (WiFi) for each zone\u003c\/li\u003e\n\u003cli\u003eRemote controls for each zone\u003c\/li\u003e\n\u003cli\u003eInstallation hardware\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MRCOOL","offers":[{"title":"Default Title","offer_id":48526270234879,"sku":"MRCOOL-DIY-4ZONE","price":4200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0815\/5450\/5983\/files\/hyper_heat_condenser_lit_r2ekeb_7eab243f-6642-4442-96b5-65b5e15bd2b0.png?v=1778795317"}],"url":"https:\/\/homesteadheavy.com\/collections\/mrcool.oembed","provider":"Homestead Heavy","version":"1.0","type":"link"}