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This part may fit other MRCOOL® models or generations. Always verify your model number before ordering.
Send us your indoor unit model number, serial number, and photos of the existing part before ordering. This helps us verify compatibility and reduce the chance of ordering the wrong replacement part.
Boost cold-weather comfort on your MRCOOL 2nd Gen VersaPro or 2nd Gen Hyper Heat central ducted system with a factory-matched Electric Heat (Aux/Emergency) Kit. When outdoor temps fall well below a heat pump’s rated range, this add-on provides the extra electric heat you need to stay comfortable—no waiting on a thaw or a second truck roll.
Available sizes: 5kW • 8kW • 10kW • 15kW • 20kW
Use case: Aux/Emergency heat for sub-freezing weather, defrost cycles, and cold snaps
Cold-climate backup: Heat pumps naturally lose capacity as temps drop; the kit supplies aux/emergency electric heat to cover the lows.
Smoother operation: Helps maintain indoor comfort during defrost and extreme weather.
Factory-matched fit: Designed specifically for 2nd Gen VersaPro & 2nd Gen Hyper Heat central air handlers for proper airflow, safeties, and wiring.
Model-specific: Smaller air handlers typically use smaller kW kits—always match to your unit’s model label/manual.
Warmer/Southern climates: Often optional; smaller kW usually covers rare cold snaps.
Colder/Northern climates: Recommended; choose a higher kW where electrical capacity and air handler sizing allow.
Not sure? Send us your air-handler model number, zip code/climate, and available breaker size—we’ll confirm the best fit.
Aux/Emergency heat on demand for sub-freezing conditions
Model-matched installation for MRCOOL 2nd Gen VersaPro & 2nd Gen Hyper Heat air handlers
DIY-friendly for confident installers; professional help recommended where required by code
Nationwide USA shipping and real-human support
Intended for MRCOOL 2nd Gen VersaPro and MRCOOL 2nd Gen Hyper Heat central ducted air handlers.
Sizes align with the Universal-series heat kit range (5–20kW), but kits are model-specific—verify your exact air-handler model and electrical specs before ordering.
Electric heat strip assembly (size selected)
Model-specific mounting/wiring components (varies by kit)
Install/connection guide
Disconnect power at the breaker before service.
Use the correct wire gauge and overcurrent protection per the heat-kit/air-handler nameplate and local code.
Ensure ductwork/airflow meet requirements when running electric heat.
A licensed electrician/HVAC professional may be required by local regulations.
Have questions about 5kW vs 8/10/15/20kW? Our team can size the right kit for your MRCOOL 2nd Gen system and your climate—reach out and we’ll help you finish the install with confidence.
| Known Compatible Models / Series |
|
|---|---|
| Compatibility Notice | This part may fit other MRCOOL® models and generations. Compatibility outside the listed models is not guaranteed without verification. |
| Brand | Aux/Emergency Heat |
|---|---|
| MRCOOL® Part Number | MVPHK05 |
No common symptom information has been added for this part type yet.
This replacement part should be installed by a qualified technician or a capable installer familiar with mini split service procedures. Always disconnect power before servicing HVAC equipment.
No Q&A content has been added for this replacement part yet.
HEAT STRIP SIZING & PERFORMANCE
The correct electric heat strip size depends on more than air handler tonnage. Climate, home insulation, electrical capacity, system design, and heating demands all affect which heat kit is appropriate for your HVAC system.
Homes in colder climates often require larger auxiliary heat capacity because heat pumps lose efficiency as outdoor temperatures fall
Northern climates may benefit from larger backup heat kits than mild-weather regions.
Heat strips draw significant electrical current. Your panel capacity, breaker size, and wiring must support the selected heat kit.
Always verify electrical requirements before upgrading to a larger kW heat strip.
Poor insulation increases heat loss and can increase demand on both the heat pump and electric backup heat system.
Improving insulation may reduce heating costs more than increasing heat strip size.
Larger homes generally require more heating capacity, but square footage alone should not determine heat strip selection.
Heat load calculations are more accurate than simple square-foot estimates.
Drafty homes, large entryways, and poorly sealed structures can dramatically increase heating demand.
Air sealing improvements can significantly improve HVAC performance.
Heat strips are not universal. Each air handler has specific approved heat kit sizes and electrical configurations.
Always verify your air handler model number before ordering a heat strip.
Heat strips provide auxiliary and emergency heat when additional heating capacity is needed. Choosing the correct heat kit requires verifying air handler compatibility, electrical requirements, climate conditions, and manufacturer specifications.