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The next generation of comfort is here.
With a new MrCool DIY 5th Gen Multi-Zone Mini-Split. Our patented MRCOOL® Series heat pump is the only ductless mini-split system on the market specifically designed for amateur installation.
Customize Your Comfort
Choose Your System Size
Select the outdoor condenser that matches your home’s square footage and zone needs. The all-new MrCool DIY Multi-zone goes up to 6 zones to meet your home’s needs.
Easy DIY® installation
Leakage Detection
DIY Pro® Cable
Match Each Zone to Your Ideal Air Handler
Choose a wall-mounted, ceiling-mounted, or the all-new DIY Hybrid Central Ducted air handler to create a multi-zone system built around your home and your needs.
Smartphone App
Low Ambient Cooling*
Easy Quick Connect
Explore the lineup.
SmartPhone App
Control your MRCOOL® DIY® anywhere with your Apple or Android smart device and an internet connection.
® DIY® Anywhere and manage
App Available in Apple & Android
Follow Me Function
Keep the included remote close by, and MRCOOL DIY® will track the air temperature around you to ensure maximum comfort.
Tracks temperature around you for personalized comfort.
Auto Restart
Multi-Zone Solutions
Individual Rooms?
Individual Results.
Each zone can choose settings that won’t influence the others
Every air handler can use the Follow Me feature for maximum comfort
The MrCool DIY has 2, 3, 4, 5 and 6 zone options, the best warranties in the business, even better efficiency ratings, and a new Armored Pro Cable.
DIY made easy.

No refrigerant? No problem. With our patented, pre-charged quick connect line sets you'll be able to install your MRCOOL® DIY® without needing specialized training or expensive tools.
The ends use proprietary Quick Connect® Threaded fittings that seal tight without needing brazing or soldering.
Made to be secure, lead-free, and DIY-safe - even for first-timers
U.S. patented technology that sets MRCOOL apart in the ductless market.

Future-proof your investment with the included DIYPro® cable, eliminating the need for electrical conduit.
Armored metal casing protects your electrical connection from damage, pests, and the elements.
Especially useful in garages, basements, sheds, or exterior walls where exposure is a concern.
Protect your Purchase.
Warranty Programs
Each unit comes backed with a standard 5-year warranty on replacement parts and a 7-year warranty on the compressor. For even greater protection, upgrade to the MrCool Care Kit Program and enjoy an extended limited lifetime replacement warranty—because long-term comfort shouldn’t come with surprises.

Heating and cooling your home accurately is integral to enjoy comfortable temperatures when the conditions outside are particularly volatile or extreme. With the MrCool DIY Multi Zone Mini Split 30k BTU 2 Zone Ductless AC & Heat Pump - 5th Generation - R454B, you and your family can stay cool, calm, and collected in any weather. Supported by both AHRI and Energy Star certifications, as well as ETL and UL listings, this MrCool Mini Split has undergone thorough third-party evaluations to verify the integrity of every operational, efficiency, and safety claim. Giving you total control over spaces spanning from 1250 to 1500 square feet, this 30k BTU MrCool AC & Heat Pump can make a positive impact on your space in moments.
From mounting the air handler to finding the perfect home for the heat pump, the MrCool DIY Multi Zone Mini Split 30k BTU 2 Zone Ductless AC & Heat Pump - 5th Generation - R454B makes sure you can effortlessly handle the setup process at each and every step of the process. Equipped with gold fin condensers that ward off corrosion over the years, this MrCool Heat Pump can effortlessly stand up to common causes of complications like coastal sea salt and other industrial chemicals in the air. Designed to work with the DIYPro armored cable and the quick connect DIY line sets to run the electronics and refrigerant between the indoor and outdoor units, this MrCool AC & Heat Pump is a breeze to get up and running in your living space.
Giving you impressive performance that doesn’t cut corners on your comfort, the MrCool DIY Multi Zone Mini Split 30k BTU 2 Zone Ductless AC & Heat Pump - 5th Generation - R454B makes climate control simple. The pair of air handlers can optimize your comfort autonomously thanks to the Follow Me function, a smart inclusion that uses the sensors built into the remote control to monitor the conditions at its location and any necessary changes to the airflow speed, direction, and strength to achieve top-tier results. With hands-off options that handle changes for you to hands-on abilities in the smartphone app that let you select your settings no matter where you are in the world, this MrCool Mini Split can keep your two-zone space comfortable in any conditions throughout the year.
Including warranty coverage that encompasses 5 years on parts and 7 years on the compressor standard, as well as the means to extend the compressor’s coverage to a limited lifetime after enrolling in the MrCool Care Program, there’s no reason to sit on your decision any longer. Secure this 5th Generation 30k BTU MrCool DIY Multi Zone Ductless Mini Split AC & Heat Pump system with two separate indoor air handlers and their line sets making use of energy-efficient R454B refrigerant today.
| Model | DIYM236HPW01D |
|---|---|
| AHRI Number | 216032592 |
| Bundle Avg Coverage Area | 1,250 - 1,500 Sq Ft |
| Bundle Cooling Capacity | 2.5 Ton |
| Bundle Cooling Efficiency (SEER2) | 23 |
| Heat Pump Efficiency (HSPF2) | 9.9 |
| Series | DIY |
| Region Compatibility | Nationwide |
| California Residents | see Prop 65 WARNING |
DIY-MULTI5-36HP230D-O Specifications:
| Model | DIY-MULTI5-36HP230D-O |
|---|---|
| UPC | 840255587464 |
| AHRI Number | 216032592 |
| Product Height (in) | 31.2 |
| Avg Coverage Area | 1,500 - 1,800 Sq Ft |
| Product Length (in) | 16.1 |
| Compressor | Inverter |
| Product Width (in) | 37.2 |
| Cooling Capacity | 3 Ton |
| Electrical Phase | 1-Phase |
| Heat Pump Efficiency (HSPF2) | 9.9 |
| Line Set Connection Type | Quick Connect |
| Liquid Line Size | 1/4 inch |
| Max Overcurrent Protection | 30 amps |
| Weight (lbs) | 169.200000 |
| Primary Heating Capacity | 35,001 - 40,000 BTU |
| Refrigerant | R-454b |
| Cooling Efficiency (SEER2) | 23 |
| Series | DIY |
| Suction Line Size | 3/8 inch |
| System Application Type | Ductless Split Systems |
| Voltage | 240 |
| Warranty | 5 Year Parts, 7 Year Compressor |
| Region Compatibility | Nationwide |
DIY-06-HP-WMAH-230D25-O Specifications:
| Model | DIY-06-HP-WMAH-230D25-O |
|---|---|
| UPC | 840255587013 |
| Product Height (in) | 11.7 |
| Configuration | Wall Mounted |
| Product Length (in) | 7.4 |
| Air Flow Direction | Horizontal |
| Product Width (in) | 31.6 |
| Blower Motor | Variable Speed |
| Cooling Capacity | Less than 1 Ton |
| Electrical Phase | 1-Phase |
| Line Set Connection Type | Quick Connect |
| Liquid Line Size | 1/4 inch |
| Weight (lbs) | 24.500000 |
| Refrigerant | R-454b |
| Series | DIY |
| Special Features | Alexa, Google Assistant, WiFi Capable |
| Suction Line Size | 3/8 inch |
| System Application Type | Ductless Split Systems |
| Voltage | 240 |
| Warranty | Lifetime, 5 Year Parts, 7 Year Compressor |
DIYCASSETTE06HP-230D25-O Specifications:
| Model | DIYCASSETTE06HP-230D25-O |
|---|---|
| UPC | 840255587495 |
| Product Height (in) | 8.9 |
| Configuration | Ceiling Mounted |
| Product Length (in) | 13.2 |
| Air Flow Direction | Downflow |
| Product Width (in) | 50.3 |
| Blower Motor | Variable Speed |
| Cooling Capacity | Less than 1 Ton |
| Electrical Phase | 1-Phase |
| Line Set Connection Type | Quick Connect |
| Liquid Line Size | 1/4 inch |
| Weight (lbs) | 45.000000 |
| Refrigerant | R-454b |
| Series | DIY |
| Special Features | Alexa, Google Assistant, WiFi Capable |
| Suction Line Size | 3/8 inch |
| System Application Type | Ductless Split Systems |
| Voltage | 240 |
| Warranty | Lifetime, 5 Year Parts, 7 Year Compressor |
DIY-12-HP-WMAH-230D25-O Specifications:
| Model | DIY-12-HP-WMAH-230D25-O |
|---|---|
| UPC | 840255587037 |
| Product Height (in) | 11.7 |
| Configuration | Wall Mounted |
| Product Length (in) | 7.4 |
| Air Flow Direction | Horizontal |
| Product Width (in) | 31.6 |
| Blower Motor | Variable Speed |
| Cooling Capacity | 1 Ton |
| Electrical Phase | 1-Phase |
| Line Set Connection Type | Quick Connect |
| Liquid Line Size | 1/4 inch |
| Weight (lbs) | 24.500000 |
| Refrigerant | R-454b |
| Series | DIY |
| Special Features | Alexa, Google Assistant, WiFi Capable |
| Suction Line Size | 3/8 inch |
| System Application Type | Ductless Split Systems |
| Voltage | 240 |
| Warranty | Lifetime, 5 Year Parts, 7 Year Compressor |
DIYCASSETTE12HP-230D25-O Specifications:
| Model | DIYCASSETTE12HP-230D25-O |
|---|---|
| UPC | 840255587518 |
| Product Height (in) | 8.9 |
| Configuration | Ceiling Mounted |
| Product Length (in) | 13.2 |
| Air Flow Direction | Downflow |
| Product Width (in) | 50.3 |
| Blower Motor | Variable Speed |
| Cooling Capacity | 1 Ton |
| Electrical Phase | 1-Phase |
| Line Set Connection Type | Quick Connect |
| Liquid Line Size | 1/4 inch |
| Weight (lbs) | 45.000000 |
| Refrigerant | R-454b |
| Series | DIY |
| Special Features | Alexa, Google Assistant, WiFi Capable |
| Suction Line Size | 3/8 inch |
| System Application Type | Ductless Split Systems |
| Voltage | 240 |
| Warranty | Lifetime, 5 Year Parts, 7 Year Compressor |
DIY-18-HP-WMAH-230D25-O Specifications:
| Model | DIY-18-HP-WMAH-230D25-O |
|---|---|
| UPC | 840255587044 |
| Product Height (in) | 13.19 |
| Configuration | Wall Mounted |
| Product Length (in) | 8.9 |
| Air Flow Direction | Horizontal |
| Product Width (in) | 42.52 |
| Blower Motor | Variable Speed |
| Cooling Capacity | 1.5 Ton |
| Electrical Phase | 1-Phase |
| Line Set Connection Type | Quick Connect |
| Liquid Line Size | 1/4 inch |
| Max Overcurrent Protection | 20 amps |
| Weight (lbs) | 54.010000 |
| Refrigerant | R-454b |
| Series | DIY |
| Suction Line Size | 1/2 inch |
| System Application Type | Ductless Split Systems |
| Voltage | 240 |
| Warranty | 5 Year Parts, 7 Year Compressor |
DIYCASSETTE18HP-230D25-O Specifications:
| Model | DIYCASSETTE18HP-230D25-O |
|---|---|
| UPC | 840255587525 |
| Product Height (in) | 8.9 |
| Configuration | Ceiling Mounted |
| Product Length (in) | 13.2 |
| Air Flow Direction | Downflow |
| Product Width (in) | 50.3 |
| Blower Motor | Variable Speed |
| Cooling Capacity | 1.5 Ton |
| Electrical Phase | 1-Phase |
| Line Set Connection Type | Quick Connect |
| Liquid Line Size | 1/4 inch |
| Weight (lbs) | 45.000000 |
| Refrigerant | R-454b |
| Series | DIY |
| Special Features | Alexa, Google Assistant, WiFi Capable |
| Suction Line Size | 1/2 inch |
| System Application Type | Ductless Split Systems |
| Voltage | 240 |
| Warranty | Lifetime, 5 Year Parts, 7 Year Compressor |
DIY-24-HP-WMAH-230D25-O Specifications:
| Model | DIY-24-HP-WMAH-230D25-O |
|---|---|
| UPC | 840255587051 |
| Product Height (in) | 13.19 |
| Configuration | Wall Mounted |
| Product Length (in) | 8.9 |
| Air Flow Direction | Horizontal |
| Product Width (in) | 42.52 |
| Blower Motor | Variable Speed |
| Cooling Capacity | 2 Ton |
| Electrical Phase | 1-Phase |
| Line Set Connection Type | Quick Connect |
| Liquid Line Size | 3/8 inch |
| Max Overcurrent Protection | 25 amps |
| Weight (lbs) | 54.670000 |
| Refrigerant | R-454b |
| Series | DIY |
| Suction Line Size | 5/8 inch |
| System Application Type | Ductless Split Systems |
| Voltage | 240 |
| Warranty | 5 Year Parts, 7 Year Compressor |
DIY-24-HP-MUAH-230D25-O Specifications:
| Model | DIY-24-HP-MUAH-230D25-O |
|---|---|
| UPC | 840255588409 |
| Product Height (in) | 45 |
| Configuration | Floor Mounted |
| Product Length (in) | 21 |
| Air Flow Direction | Downflow, Horizontal, Upflow |
| Product Width (in) | 17.5 |
| Blower Motor | Multi Speed |
| Cooling Capacity | 2 Ton |
| Electrical Phase | 1-Phase |
| Heat Strip Compatibility | Up to 15 kW |
| Line Set Connection Type | Quick Connect |
| Liquid Line Size | 3/8 inch |
| Max Overcurrent Protection | 15 amps |
| Weight (lbs) | 104.700000 |
| Refrigerant | R-454b |
| Series | DIY |
| Suction Line Size | 5/8 inch |
| System Application Type | Ductless Split Systems |
| Voltage | 240 |
| Warranty | Lifetime, 5 Year Parts |
DIY16-1438-O Specifications:
| Model | DIY16-1438-O |
|---|---|
| UPC | 840255589154 |
| Product Length (in) | 192 |
| Line Set Connection Type | Quick Connect |
| Liquid Line Size | 1/4 inch |
| Weight (lbs) | 7.900000 |
| Suction Line Size | 3/8 inch |
| System Application Type | Ductless Split Systems |
| Warranty | None |
DIY25-1438-O Specifications:
| Model | DIY25-1438-O |
|---|---|
| UPC | 840255589161 |
| Product Length (in) | 300 |
| Line Set Connection Type | Quick Connect |
| Liquid Line Size | 1/4 inch |
| Weight (lbs) | 10.400000 |
| Suction Line Size | 3/8 inch |
| System Application Type | Ductless Split Systems |
| Warranty | None |
DIY35-1438C-O Specifications:
| Model | DIY35-1438C-O |
|---|---|
| UPC | 840255589185 |
| Product Length (in) | 420 |
| Line Set Connection Type | Quick Connect |
| Liquid Line Size | 1/4 inch |
| Weight (lbs) | 17.600000 |
| Suction Line Size | 3/8 inch |
| System Application Type | Ductless Split Systems |
| Warranty | None |
DIY50-1438C-O Specifications:
| Model | DIY50-1438C-O |
|---|---|
| UPC | 840255589192 |
| Product Height (in) | 36.5 |
| Product Width (in) | 35.5 |
| Product Length (in) | 600 |
| Line Set Connection Type | Quick Connect |
| Liquid Line Size | 1/4 inch |
| Weight (lbs) | 24.000000 |
| Suction Line Size | 3/8 inch |
| System Application Type | Ductless Split Systems |
| Warranty | None |
DIY16-1412-O Specifications:
| Model | DIY16-1412-O |
|---|---|
| UPC | 840255587075 |
| Product Length (in) | 192 |
| Line Set Connection Type | Quick Connect |
| Liquid Line Size | 1/4 inch |
| Weight (lbs) | 13.000000 |
| Suction Line Size | 1/2 inch |
| System Application Type | Ductless Split Systems |
| Warranty | None |
DIY16-3858-O Specifications:
| Model | DIY16-3858-O |
|---|---|
| UPC | 840255587082 |
| Product Length (in) | 192 |
| Line Set Connection Type | Quick Connect |
| Liquid Line Size | 3/8 inch |
| Weight (lbs) | 19.000000 |
| Suction Line Size | 5/8 inch |
| System Application Type | Ductless Split Systems |
| Warranty | None |
DIY25-1412-O Specifications:
| Model | DIY25-1412-O |
|---|---|
| UPC | 840255587099 |
| Product Length (in) | 300 |
| Line Set Connection Type | Quick Connect |
| Liquid Line Size | 1/4 inch |
| Weight (lbs) | 17.000000 |
| Suction Line Size | 1/2 inch |
| System Application Type | Ductless Split Systems |
| Warranty | None |
DIY25-3858-O Specifications:
| Model | DIY25-3858-O |
|---|---|
| UPC | 840255587112 |
| Product Length (in) | 300 |
| Line Set Connection Type | Quick Connect |
| Liquid Line Size | 3/8 inch |
| Weight (lbs) | 19.000000 |
| Suction Line Size | 5/8 inch |
| System Application Type | Ductless Split Systems |
| Warranty | None |
DIY35-1412C-O Specifications:
| Model | DIY35-1412C-O |
|---|---|
| UPC | 840255587136 |
| Product Length (in) | 420 |
| Line Set Connection Type | Quick Connect |
| Liquid Line Size | 1/4 inch |
| Weight (lbs) | 23.000000 |
| Suction Line Size | 1/2 inch |
| System Application Type | Ductless Split Systems |
| Warranty | None |
DIY35-3858C-O Specifications:
| Model | DIY35-3858C-O |
|---|---|
| UPC | 840255587143 |
| Product Length (in) | 420 |
| Line Set Connection Type | Quick Connect |
| Liquid Line Size | 3/8 inch |
| Weight (lbs) | 23.000000 |
| Suction Line Size | 5/8 inch |
| System Application Type | Ductless Split Systems |
| Warranty | None |
DIY50-1412C-O Specifications:
| Model | DIY50-1412C-O |
|---|---|
| UPC | 840255587150 |
| Product Length (in) | 600 |
| Line Set Connection Type | Quick Connect |
| Liquid Line Size | 1/4 inch |
| Weight (lbs) | 33.000000 |
| Suction Line Size | 1/2 inch |
| System Application Type | Ductless Split Systems |
| Warranty | None |
DIY50-3858C-O Specifications:
| Model | DIY50-3858C-O |
|---|---|
| UPC | 840255587167 |
| Product Length (in) | 600 |
| Line Set Connection Type | Quick Connect |
| Liquid Line Size | 3/8 inch |
| Weight (lbs) | 37.000000 |
| Suction Line Size | 5/8 inch |
| System Application Type | Ductless Split Systems |
| Warranty | None |




