MRCOOL® 18k DIY 5th Generation Mini-split Air Handler 230v

The 5th Generation MRCOOL® DIY® 18k BTU Ductless Heat Pump Single Zone Mini-Split Air Handler delivers powerful, energy-efficient heating and cooling for spaces up to 800 sq. ft. Designed for easy, tool-free installation, this system requires no professional experience, specialized tools, or costly service calls—making it a fast and affordable comfort solution for homeowners. This model features the rugged DIYPRO® cable, which eliminates the need for traditional electrical conduit while offering added durability and protection against outdoor elements, animals, and harsh weather conditions. Installation is not only simplified but also built to last. You can manage your comfort your way. Use the included wireless remote, connect through the SmartHVAC app available on iOS and Android devices, or control the system using voice commands via Amazon Alexa and Google Assistant. The Gold Fin® condenser coating enhances corrosion resistance, making the unit a great fit for coastal or high-humidity areas. The system also includes advanced comfort features. Follow Me® technology senses the temperature around the remote and adjusts airflow accordingly, ensuring consistent comfort where you are. Dry Mode reduces humidity for better air quality and comfort. To protect your investment, MRCOOL® offers a strong 7-year compressor and 5-year parts warranty, and is also eligible for the MRCOOL® Care Program. Experience hassle-free installation, advanced features, and reliable year-round comfort with the MRCOOL® DIY® 18k Mini-Split Air Handler.

PLEASE NOTE: THIS LISTING IS FOR AN AIR HANDLER ONLY.  A CONDENSER AND LINE SETS ARE REQUIRED FOR A COMPLETE SYSTEM.  PLEASE CONTACT US DIRECTLY FOR A CUSTOM QUOTE OR CHOOSE YOUR OWN…

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COMPATIBLE LINE SETS (ONE PER AIR HANDLER OR CHOOSE COUPLER PLUS TWO LENGTHS OVER 50 FT UP TO 75 FT OR DIYCOUPLER FOR LENGTHS OVER 75 FT PLUS LINE SETS)

- 16ft 1/4 x 1/2 Lineset for DIY 18K Indoor - R454B

- 25ft 1/4 x 1/2 Lineset for DIY 18K Indoor - R454B

- 25ft 1/4 x 1/2 Lineset for DIY 18K Indoor w/ DIY Pro Cable - R454B Compatible with EZ Pro

- 35ft 1/4 x 1/2 Lineset for DIY 18K Indoor w/ DIY Pro Cable - R454B

- 50ft 1/4 x 1/2 Lineset for DIY 18K Indoor w/ DIY Pro Cable - R454B

- DIY 4th/ 5th Gen DIY COUPLER with 75ft DIY Pro Cable for 6k,9k,12,18k

- DIYCOUPLER-38 + DIYCOUPLER-58 (Two Sets) w/ 75 ft of Communication Wire