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The 4th Generation MrCool DIY 18K BTU 2-Zone Ductless Split System is the latest in heat pump technology. The system is capable of producing an impressive 21 SEER efficiency rating. It also has the ability to heat even when temperatures drop to -13°F. It can be conveniently operated from anywhere using your Apple or Android smartphone with the Smart HVAC app. For added peace of mind, this is the only condenser on the market that comes with a limited lifetime compressor warranty.
THE MRCOOL DIY 4th Generation 18K BTU 2-Zone ductless mini-split 9k+12k is the only whole-home mini-split solution that you can INSTALL YOURSELF. Simple, easy air comfort in up to two zones.
Each 9k air ceiling cassette is designed to heat and cool up to 375 square feet both efficiently and effectively.
Each 12k air ceiling cassette is designed to heat and cool up to 500 square feet both efficiently and effectively.
Low Profile Installation
You won't even know it's there. The MRCOOL® DIY® Series Ceiling Cassettes offer a low-profile heating and cooling option to discreetly fit any space.
New Construction, retrofit, and anything between. Designed to work with current and future joist standards, it can be recessed between all types of joists on 16 inch center - including pre-manufactured I-joists.
Easy Air Filter Access
Let your ladder gather dust. By activating the Elevation function on the remote controller (or smart controller), the filter panel will lower for easy air filter maintenance.
Single & Multi-Zone Possibilities
Add it to your DIY® Multi-Zone configuration. This unit works with the MRCOOL® DIY® 4th generation series of units. The 18k ceiling cassette can also be installed as a single zone configuration.
Industry Exclusive Installation. The unit can be easily installed between standard ceiling joists or I-joists and secured with screws. For even easier installation, use the MRCOOL DIY® QUICK CONNECT® LINE SET.
Best Warranty in the Business
Limited Lifetime Compressor*, 7 Year Compressor Replacement*, 5 Year Parts
The DIY® 4th gen Multi-Zone comes with a LIMITED LIFETIME compressor warranty*, a 7-year compressor replacement* warranty, and a standard 5-year parts warranty for the original registered owner.