Take control of your home’s comfort with the MRCOOL DIY 5th Gen Multi-Zone Mini Split System — the simplest, most affordable way to get powerful, energy-efficient heating and cooling without hiring a professional.
Comfort for Three Rooms
Easily heat or cool three separate spaces (500 sq. ft., 500 sq. ft., and 1,000 sq. ft.) with independent temperature control in each zone for perfectly personalized comfort.
Designed for Real DIYers
Skip the costly installation fees. If you can handle basic hand tools, you can install this system — no HVAC license, no special equipment required.
Fast, Mess-Free Setup
MRCOOL’s pre-charged Quick-Connect® line sets eliminate vacuuming and refrigerant handling. Just connect the units, tighten the fittings, and you’re ready to enjoy comfort.
Serious Year-Round Efficiency
With up to 21.8 SEER2 cooling and 10 HSPF2-4 heating performance, this system delivers impressive energy savings in every season.
Dependable Cold-Weather Heating
Stay warm even in extreme winter conditions — the system provides reliable heating down to -13°F.
Warranty You Can Count On
Includes a 7-year compressor replacement warranty and 5-year parts coverage for long-term peace of mind.
From blazing summers to freezing winters, the MRCOOL DIY Mini Split keeps your home comfortable. Smart. Simple. Affordable.