MRCOOL 36,000 BTU Ducted Air Handler – DIY-36-HP-MUAH-230D25-O

The 36K MRCOOL® DIY Hybrid Air Handler offers a powerful and adaptable solution for heating and cooling areas up to 1,500 square feet. Engineered for compatibility with MRCOOL® DIY condensers, this unit is perfect for hassle-free installation without the need for professional help—making it an ideal replacement for outdated or inefficient HVAC systems. Its rugged painted galvanized steel cabinet ensures long-term durability, while the integrated self-diagnostics panel streamlines maintenance by displaying error codes for quick and accurate issue identification.

Designed with flexibility in mind, the air handler supports multiple installation styles, including upflow, downflow, and horizontal left or right, allowing it to fit a wide range of home configurations with ease. It uses R454B refrigerant, a high-performance, eco-friendly option that reduces environmental impact without sacrificing efficiency. For enhanced comfort during colder seasons, an optional electric heat kit can be added to provide reliable supplemental warmth and year-round versatility.

The system also comes equipped with the MRCOOL® Smart Wi-Fi Thermostat, offering intuitive climate control through a user-friendly touchscreen or the MRCOOL® mobile app. Adjusting your home’s temperature is simple and convenient, whether you’re relaxing at home or managing settings remotely.

Covered by a 5-year parts warranty, the 36K MRCOOL® DIY Hybrid Air Handler delivers energy efficiency, advanced performance, and dependable comfort—making it a smart, cost-effective upgrade for modern homes.