On colder days, maintaining steady indoor warmth can become difficult when a heat pump reaches its limit. The MRCOOL MHK20H provides additional heating support, helping your system keep indoor temperatures consistent when extra output is needed.
Designed for compatible systems, this unit operates as an internal electric heating element, functioning as a MRCOOL Signature air handler 20kW heat strip to support the primary HVAC setup. Installed inside the air handler, it provides supplemental heat during higher demand and activates automatically for consistent performance. As a MRCOOL heat strip with circuit breaker, it also includes built-in protection for safe operation.
By supplying additional heat directly through the air handler, it helps reduce cold spots and improves overall temperature balance. It also supports the main system during peak usage, making it useful in colder climates or during sudden temperature drops.
One customer noted:
“Before installing it, the system struggled during late nights. After adding the heat kit, the room stayed warm and stable.”
The heat kit is designed to assist heating systems during periods of increased demand, contributing to more stable indoor performance.
Product Highlights
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Details |
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20kW Heat Strip
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Provides strong supplemental heating
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Built-in Circuit Breaker
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Supports safe and protected operation
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Air Handler Integration
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Designed for MRCOOL Signature compatibility
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Automatic Activation
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Engages when additional heat is required
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