Enhance your home's comfort with the 5th Generation MRCOOL DIY 18K BTU Ductless Mini-Split Air Handler. Ideal for heating and cooling rooms up to 800 sq. ft., this system is designed for easy DIY installation—no special tools or professional help needed. The included DIYPRO cable simplifies setup and offers extra protection against weather and wildlife. You can control the system your way: use the included wireless remote, the SmartHVAC app (available on iOS and Android), or connect it to Amazon Alexa or Google Assistant for hands-free voice control. The air handler features smart functions like Follow Me mode, which adjusts airflow based on the remote’s location, and Dry Mode, which reduces humidity in the room. Built to last, the system includes a 7-year compressor warranty and a 5-year parts warranty. The air handler is also compatible with the MRCOOL Gold Fin Condenser, which resists corrosion for long-lasting performance—especially in coastal environments. Please Note: This product includes the indoor air handler only. To complete your MRCOOL DIY 18K BTU system, you must purchase the compatible MRCOOL DIY 18K outdoor condenser (sold separately). Proper pairing is required for full functionality and warranty coverage.
18,000 BTU DIY Air Handler only
Easy DIY installation
Designed to efficiently heat and cool a single 550-800 Sq Ft room
Please Note: This product includes the indoor air handler only, to complete your MRCOOL DIY 18K BTU system, you must purchase the compatible MRCOOL DIY 18K outdoor condenser (sold separately) Proper pairing is required for full functionality and warranty coverage
Variable-speed DC inverter compressor technology cuts operating costs
5-year parts warranty and 7-Year compressor
