Mr Cool 5th Generation DIY 18K BTU Wall Mount Air Handler 230V

Mr Cool 5th Generation DIY 18K BTU Wall Mount Air Handler 230V

The MRCOOL DIY® 5th Gen 18K BTU Wall Mount Air Handler is a high-efficiency indoor comfort solution designed to heat and cool your space without the need for complicated installs or professional headaches. Built for DIY-friendly installation and smart home control, this unit delivers reliable year-round climate control for spaces up to 750 sq. ft.—because comfort should be adjustable from your couch, not a service call.

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: DIY-18-HP-WMAH-230D25-O
• Brand / Series: MRCOOL DIY® 5th Generation
• Product Type: Wall-mounted mini split air handler (indoor unit)
• Capacity: 18,000 BTU (18K)
• Coverage Area: Approx. 500 – 750 sq. ft.
• Voltage: 230V
• System Type: Single-zone mini split (indoor unit only)
• Compatibility: Designed to work with MRCOOL DIY® 5th Gen condensers
• Control Options:
  • Remote control included
  • SmartHVAC app control
  • Voice control via Amazon Alexa & Google Assistant
• Smart Features:
  • Follow Me function adjusts airflow based on remote location for consistent comfort
• Installation: DIY-friendly design for simplified setup
• Dimensions: 42.52" W x 8.90" D x 13.2" H
• Line Set Compatibility: 3/8" & 5/8" pipe size
• Performance: Provides efficient heating and cooling for year-round use

Ideal For

• Homes, shops, or offices needing efficient climate control in 500–750 sq. ft. spaces
• DIY users looking to install their own mini split system
• Anyone wanting smart control via app or voice assistant
• Spaces where quiet, efficient heating and cooling is a priority
• People who like adjusting the temperature without getting up—or even being in the same room**