Mr Cool 4th Generation DIY 12K BTU Heat Pump Wall Mount Air Handler

Mr Cool 4th Generation DIY 12K BTU Wall Mount Air Handler 230 volt w/25Ft Pro Cable & Enhanced WiFi

The MrCool DIY-12-HP-WMAH-230C25 4th Gen Wall Mount Air Handler is a smart, efficient solution for heating and cooling single spaces without the complexity of traditional HVAC installs. Designed for DIY-friendly installation, this 12,000 BTU unit pairs reliable performance with modern convenience, including Enhanced WiFi control for app, Alexa, and Google Assistant integration. With a 25 ft Pro Cable included, setup is streamlined—so you can focus on comfort instead of calling in a full crew.

Country of Origin
Made in the U.S.A. (with global components)

Key Features / Specifications

• Model / Part Number: DIY-12-HP-WMAH-230C25
• Brand / Series: MrCool 4th Generation DIY
• Product Type: Wall-mounted air handler (mini-split indoor unit)
• Cooling / Heating Capacity: 12,000 BTU
• Voltage: 230V
• Installation Type: DIY-friendly system
• Connectivity: Enhanced WiFi (app control, Alexa, Google Assistant compatible)
• Included: 25 ft DIY Pro Cable
• Compatibility: Designed for MrCool DIY outdoor condenser systems
• Operation Modes: Multiple fan speeds and comfort settings
• Performance: Quiet operation for indoor comfort
• Application: Designed for single-room heating and cooling

Ideal For

• Heating and cooling bedrooms, offices, and small living spaces
• Homeowners wanting DIY HVAC installation without specialized tools
• Smart homes needing app and voice-controlled climate systems
• Upgrades from window units to more efficient, permanent solutions
• Anyone who wants to adjust the temperature without leaving the couch