MRCOOL® Signature Series 10kW Electric Heat Kit for Stud-Mount Air Handlers (R-454B) — MCAEHWD10X1AA

Product Description 

The MRCOOL® Signature Series MCAEHWD10X1AA 10kW Electric Heat Kit is the highest-capacity auxiliary heating option available for MRCOOL Signature Series R-454B stud-mount air handlers, engineered for cold climates, larger conditioned spaces, and applications that demand maximum backup heat performance.

Designed specifically for MRCOOL’s innovative between-the-stud air handler systems, this 10kW heat kit installs cleanly inside compatible stud-mount air handlers without increasing cabinet size or disrupting the system’s compact footprint. Once installed, it delivers powerful electric resistance heat, supporting the heat pump during extreme winter conditions or operating as reliable emergency heat when outdoor temperatures fall below efficient heat-pump ranges.

As an OEM MRCOOL accessory, the MCAEHWD10X1AA is built to exact factory specifications, ensuring perfect compatibility, safe operation, and long-term reliability. It’s an ideal upgrade for homes in northern climates, multi-story layouts, remodels, apartments, and tight mechanical spaces where traditional auxiliary heating solutions simply aren’t an option.

When paired with a compatible MRCOOL Signature Series stud-mount air handler, this 10kW heat kit provides maximum winter comfort, system redundancy, and peace of mind, making it the go-to solution for customers who want no compromises in cold-weather performance.

 

KEY FEATURES & BENEFITS 

• 10kW Electric Heat Output – Maximum auxiliary & emergency heating capacity
• Designed for Stud-Mount Air Handlers – Preserves in-wall, space-saving installs
• Signature Series Compatibility – Engineered for MRCOOL R-454B systems
• Ideal for Cold & Extreme Climates – Strong backup heat when it matters most
• OEM MRCOOL Accessory – Guaranteed fit and performance
• Electric Resistance Heating – Consistent, dependable heat delivery
• Quiet Operation – No additional system noise
• Seamless Internal Installation – No cabinet modification required

 

COMPATIBILITY

Works With:

• MRCOOL® Signature Series R-454B Stud-Mount Air Handlers

(Compatible with approved 18K, 24K, 30K, and 36K stud-mount air handlers when properly sized.)

 

ELECTRICAL & SYSTEM NOTES

• Heat Output: 10kW
• Heating Type: Electric Resistance
• Application: Auxiliary / Emergency Heat
• Refrigerant Compatibility: R-454B systems

 

⚠️ Important: Electrical sizing must be verified and installation should be performed by a qualified professional to ensure code compliance and safe operation.

 

DIMENSIONS (SHIPPING) 

• Width: 10.38 in
• Height: 9.25 in
• Depth: 14.13 in

 

FREQUENTLY ASKED QUESTIONS 

Q: When should I choose the 10kW heat kit instead of 5kW or 7.5kW?

A: The 10kW kit is ideal for colder climates, larger spaces, or applications requiring maximum auxiliary heat capacity.

 

Q: Does this replace the heat pump?

A: No. It supplements the heat pump and provides backup or emergency heat when needed.

 

Q: Will this affect the stud-mount air handler size?

A: No. The heat kit installs internally and does not change cabinet dimensions.

 

Q: Is this a genuine MRCOOL part?

A: Yes. This is an OEM MRCOOL Signature Series heat kit designed specifically for stud-mount air handlers.

 

Q: Can a homeowner install this heat kit?

A: Due to electrical requirements, professional installation is strongly recommended.

 

 WHY BUY FROM MRCOOL DIRECT

• ✅ Authorized MRCOOL Dealer
• ✅ Genuine OEM MRCOOL Accessories
• ✅ Guaranteed Compatibility
• ✅ Fast Nationwide Shipping
• ✅ MRCOOL-Focused Product Experts
• ✅ Trusted MRCOOL-Only Online Store