Description

The 20kW Heat Kit with Circuit Breaker for MRCOOL Universal Series R‑454B Air Handlers delivers the strongest electric heat output available for the Universal lineup. Designed for regions with severe winter temperatures or large homes with high heating demand, this kit ensures your system can maintain comfort even when outdoor temperatures drop well below freezing.

Engineered specifically for MRCOOL Universal R‑454B air handlers, this heat kit installs seamlessly, maintains full system compatibility, and includes a factory‑integrated circuit breaker for safe, code‑compliant operation.

If you need maximum heating performance, emergency backup capability, or the highest level of cold‑weather support, the 20kW kit is the top‑tier solution.

Key Features

• 20kW Maximum Electric Heat Output: The highest‑capacity supplemental heat option for MRCOOL Universal R‑454B systems.
• Integrated Circuit Breaker provides built‑in overcurrent protection and simplifies electrical installation.
• Engineered for MRCOOL Universal R‑454B Air Handlers, ensuring proper fitment, airflow, and electrical compatibility.
• Extreme Cold‑Weather Performance Ideal for harsh winter climates, large homes, and high‑demand heating applications.
• Heavy‑Duty Heating Elements Built for long‑term reliability and consistent performance.
• Straightforward Installation Mounts directly into the Universal Series air handler with minimal steps.

Compatible With

This 20kW heat kit is compatible with the following MRCOOL Universal Series R‑454B Air Handlers:

• 4‑Ton Universal R‑454B Air Handler
• 5‑Ton Universal R‑454B Air Handler

Technical Specifications

• Heat Output: 20 kW
• Breaker Included: Yes (factory‑integrated)
• Voltage: 208/230V
• Phase: Single‑phase
• Application: Supplemental electric heat for MRCOOL Universal R‑454B systems
• Mounting Location: Internal air handler installation
• Safety Features: Overcurrent protection, thermal safeguards

What’s Included

• 20kW electric heat kit
• Integrated circuit breaker
• Mounting hardware (if applicable)
• Installation documentation

Ideal For

• Homes in extreme cold climates
• Large homes with high heating demand
• Installations requiring maximum supplemental heat
• Emergency backup heating
• Universal Series systems needing the highest output available