MRCOOL® DIY 5th Gen 18k BTU Air Handler (Indoor Only) 230V — Model DIY-18-HP-WMAH-230D25-O

The 5th Generation MRCOOL® DIY® 18K BTU Ductless Heat Pump Single Zone Mini-Split Air Handler is a powerful and efficient solution for heating and cooling spaces up to 800 sq. ft. Designed with a true DIY installation in mind, this system eliminates the need for special tools or professional assistance, making setup fast, simple, and cost-effective. One of the standout features is the pre-charged 25-foot DIY® QuickConnect® line set, which comes pre-filled with R-454B refrigerant. This means there’s no need for vacuuming, cutting down on installation time and costs. Additionally, the included DIYPRO® cable removes the need for electrical conduit, providing added durability and protection against outdoor elements and wildlife. Controlling your system is effortless with multiple options to fit your lifestyle. Adjust settings using the wireless remote, the SmartHVAC app for Apple and Android devices, or hands-free voice commands through Amazon Alexa and Google Assistant. Engineered for long-lasting performance, the Gold Fin® Condenser in the outdoor unit offers superior corrosion resistance, especially beneficial in coastal environments. For added comfort, the Follow Me function on the remote allows the air handler to monitor and adjust airflow based on the remote’s location, ensuring even temperature control. Dry Mode helps maintain a comfortable indoor environment by reducing excess humidity and condensation buildup. Backed by industry-leading warranties—including a limited lifetime warranty, a 7-year compressor warranty, and a 5-year parts warranty—the 5th Generation MRCOOL® DIY® is built for reliability. Enjoy smart features, easy installation, and dependable year-round comfort with this innovative ductless mini-split system.

Key Features

• <ul>
• <li>Intertek listed 5031495</li>
• <li> Easy DIY installation </li>
• <li>Future-proof your investment with the included DIYPro® cable, eliminating the need for electrical conduit.</li>
• <li>Keep the included remote close by, and MRCOOL DIY®'s Follow Me® function will track the air temperature around you to ensure maximum comfort.</li>
• <li>The MRCOOL® Smart HVAC Controller® Module and App fully support Google Assistant & Amazon Alexa out of the box.</li>
• </ul>

Specifications

Important Notices

• Images are for illustration only. Included accessories and configuration can vary by model.
• Availability and specifications can change without notice.
• Compatibility & refrigerant: indoor and outdoor units must be matched for the same refrigerant generation. Have a qualified HVAC technician verify compatibility before ordering/installation.