20KW Heat Kit with Circuit Breaker for MRCOOL Universal Series Air Handlers - R-454B | HVAC System Accessory

Upgrade your MRCOOL Universal 2nd Gen central ducted system with a factory-matched Electric Heat (Emergency/Aux) Kit. This add-on installs in the air handler and provides an extra boost of electric heat when outdoor temperatures drop well below your heat pump’s rated heating range—helping maintain comfort during cold snaps.

Available sizes: 5kW • 8kW • 10kW • 15kW • 20kW
Includes: model-specific heat strip assembly with integrated circuit breaker

Why add a heat kit?

• Cold-weather backup: Heat pumps naturally lose heating capacity as outdoor temps fall. The heat kit supplies aux/emergency heat to cover those lows.

• Comfort & reliability: Smooth transitions during defrost and extreme weather.

• Factory-matched fit: Designed for MRCOOL Universal 2nd Gen air handlers for correct airflow, safeties, and wiring.

• Circuit breaker included for the kit (model-specific)

• Aux/Emergency heat for sub-freezing weather

• Designed for MRCOOL Universal 2nd Gen air handlers

• DIY-friendly for confident installers; professional assistance recommended where required by code

Compatibility

• For MRCOOL Universal 2nd Gen central ducted air handlers only.

• Heat kits are model-specific. Please verify your exact air-handler model number and electrical specs before ordering. We’re happy to help you confirm.

Shipping Information - Freight shipping available across the USA. Tracking details provided after dispatch.

Warranty Support - Manufacturer warranty support available on eligible products.

Compatibility Help - Need help choosing the right system? Contact our support team for sizing and compatibility assistance.