MRCOOL DIY 18K BTU 22.5 SEER2 5th Gen Ductless Mini Split Heat Pump System - 230V

The MRCOOL DIY 18K BTU 22.5 SEER2 5th Gen Ductless Mini Split Heat Pump System is a complete 230V single-zone system that heats and cools spaces up to 800 square feet.

Everything arrives in one order: the 18,000 BTU inverter condenser, the wall-mounted air handler, and a 25-foot pre-charged Quick Connect line set. That last part is what makes this a true DIY install. The refrigerant is already in the lines, so there's no vacuum pump, no gauges, and no special tools or refrigerant certification. Most homeowners have the whole system running in a weekend.

Ideal Spaces

• Open living rooms and great rooms
• Large master suites
• Garages and detached workshops
• Studio apartments and ADUs
• Finished basements
• Home additions without ductwork

In a typical insulated space, it will handle up to 800 square feet with no problem. For tougher spaces like an uninsulated garage or a sunroom with lots of glass, plan on around 650 square feet.

Features

• 22.5 SEER2 efficiency. ENERGY STAR certified inverter operation that ramps up and down instead of cycling on and off, which is what keeps power bills down.
• Barely a whisper indoors. The air handler runs as low as 19 dBA, quieter than rustling leaves.
• Control from anywhere. Included remote, SmartHVAC app on your phone, or just ask Alexa or Google Assistant.
• Follow Me comfort. The remote senses the temperature where you're sitting, not at the wall, so the room feels the way you set it.
• Built to last outside. Gold Fin coating on the condenser resists corrosion from rain, salt air, and the elements.
• Washable filter plus Dry, Quiet, Sleep, and Fan Only modes for year-round comfort with no recurring filter cost.

Key Specs

• 18,000 BTU (1.5 ton) heating and cooling
• 22.5 SEER2, 13.7 EER2, 11.5 HSPF2
• Covers up to 800 sq ft
• 208/230V, 20A max breaker
• Air handler: 19 to 54.5 dBA, 42.5" W x 13.2" H x 8.9" D
• Condenser: 35" W x 26.5" H x 13.5" D, 93.5 lbs
• 25 ft pre-charged R-454B line set, extendable to 98.4 ft
• Wi-Fi, iOS and Android app, Alexa and Google Assistant
• ENERGY STAR, AHRI certified, UL and ETL listed

What you should know

This is a complete single-zone system, so nothing else is required to run it except a dedicated 208/230V circuit, which most people have an electrician wire. The included 25-foot line set covers the majority of installs, and the system supports runs up to 98.4 feet if your condenser needs to sit farther from the room.

Warranty

• 7-year compressor coverage
• 5-year parts coverage

Need help?

Call us at 1-800-514-2418 and our HVAC product specialists will answer your questions and help customize your MRCOOL DIY 18K BTU 22.5 SEER2 5th Gen Heat Pump System setup.

Order online in minutes. Secure checkout, free shipping, and no sales tax.

Good AirX is an Authorized MRCOOL Dealer. Every unit ships new, factory-sealed, and fully covered by MRCOOL's manufacturer warranty.

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