Description

The MRCOOL 20kW Heat Kit with Circuit Breaker provides the highest level of auxiliary heating available for the Universal R-454 B Air Handler Series. Built for homes in severe winter climates or installations requiring substantial backup heat, this 20kW kit ensures your system can maintain comfort even during the coldest conditions.

Designed specifically for the MRCOOL Universal R‑454B lineup, this heat kit installs seamlessly, maintains proper airflow, and includes a factory‑integrated circuit breaker for enhanced electrical safety and simplified installation.

If you need maximum heating performance, code‑compliant auxiliary heat, or robust emergency heat capability, this 20kW kit is the top choice.

Key Features

• High‑Output 20kW Heating Capacity Provides the strongest auxiliary heat option for MRCOOL Universal R‑454B systems.
• Integrated Circuit Breaker Adds essential overcurrent protection and simplifies wiring.
• Engineered for MRCOOL Universal R‑454B Air Handlers Ensures perfect fit, proper airflow, and full compatibility.
• Reliable Emergency Heat Source Keeps your home warm even during extreme cold or heat pump faults.
• Durable, Long‑Life Construction Built to MRCOOL’s high standards for performance and reliability.

Compatible With

This 20kW heat kit is compatible with all MRCOOL Universal R‑454B Air Handler models, including:

• UAH18024‑O
• UAH18030‑O
• UAH18036‑O
• UAH18048‑O
• UAH18060‑O

Specifications

What’s Included

• 20kW Electric Heat Kit
• Integrated Circuit Breaker
• Mounting Hardware
• Installation Documentation

Why Choose a 20kW Heat Kit?

• Ideal for large homes or extremely cold climates
• Provides the strongest emergency heat available for Universal R‑454B systems
• Helps meet strict regional HVAC code requirements
• Ensures maximum comfort during winter storms or heat pump defrost cycles

Frequently Asked Questions

Does this work with older R‑410A Universal air handlers?

No — this model is specifically designed for the R‑454B Universal Series.

Is the circuit breaker required?

Yes. The integrated breaker provides essential overcurrent protection and simplifies installation.

Can I install this myself?

Electrical experience is recommended. Many DIYers can install it, but MRCOOL advises using a licensed electrician for safety and code compliance.

Will this reduce airflow?

No. It is engineered to fit the Universal air handler without restricting airflow.

Ideal For

• Homes in very cold climates
• Installations requiring maximum auxiliary heat
• Homeowners wanting a strong emergency heat backup
• Ensuring full compatibility with MRCOOL Universal R‑454B systems