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MRCOOL DIY 5th Gen 4-Zone 42,000 BTU Ductless Mini Split Air Conditioner & Heat Pump (9K+9K+12K+12K), DIY4-B-36HP

MRCOOL DIY 5th Gen 4-Zone 42,000 BTU Ductless Mini Split Air Conditioner & Heat Pump (9K+9K+12K+12K), DIY4-B-36HP

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Take control of your comfort with the MRCOOL DIY 5th Gen Multi-Zone Mini Split System - the easiest and most affordable way to get powerful, energy-saving heating and cooling without hiring a pro.

  • Four Rooms, Perfect Comfort: Heat or cool four spaces that are 350 sq. ft., 350 sq. ft., 500 sq. ft. and 500 sq. ft. each with independent temperature control for personalized comfort.
  • Truly DIY-Friendly: Forget expensive installs - no HVAC license or special tools required. If you can use basic hand tools, you can do this.
  • Year-Round Savings: Boasting up to 23.0 SEER2 cooling efficiency and 9.9 HSPF2-4 heating performance, this system delivers serious energy savings.
  • Built for Every Season: Stay cozy even in the dead of winter - reliable heating works all the way down to -13°F.
  • Strong Warranty Protection: Includes 7-Year Compressor Replacement and 5-Year Parts Coverage.

Whether it’s hot summer days or freezing winter nights, the MRCOOL DIY Mini Split keeps your home comfortable and your energy bills low. Smart. Simple. Affordable.

*Note: If multiple air handlers are used at the same time, their total BTU output will be limited by the condenser’s capacity. For this system, the condenser can provide up to 36,000 BTU in total.