MRCOOL® 7.5kW Heat Kit for Signature Series R-454B Stud Mount Air Handlers, MCAEHWD7X1AA

Product Description 

 

MRCOOL® Signature Series 7.5kW Electric Heat Kit for Stud Mount Air Handlers

The MRCOOL® Signature Series 7.5kW Heat Kit (MCAEHWD7X1AA) is designed for homeowners who want stronger auxiliary heat capacity in colder climates or larger stud mount air handler applications.

Providing 7,500 watts of electric heating power, this factory-matched heat kit delivers dependable backup and emergency heat when outdoor temperatures fall, during defrost cycles, or when additional warmth is needed beyond the heat pump alone.

Engineered specifically for MRCOOL Signature Series R-454B stud mount air handlers, this heat kit installs cleanly inside the cabinet and integrates seamlessly with the system’s airflow and electrical design. No adapters, no modifications—just correct, manufacturer-approved performance.

The 7.5kW size is ideal for mid-sized homes, colder regions, or customers who want extra heating margin without jumping to oversized electric heat. When paired correctly, it helps maintain steady indoor temperatures while keeping energy use balanced.

If you want reliable winter comfort with more heating strength than a standard 5kW kit, the MRCOOL® 7.5kW Stud Mount Heat Kit is the smart, system-safe upgrade.

 

 COMPATIBILITY

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

✔ Designed for auxiliary & emergency electric heat

✔ Ideal for moderate to colder climates

 

⚠️ Not compatible with multi-position air handlers or non-Signature Series systems.

 

TECHNICAL SPECIFICATIONS 

Brand: MRCOOL

Series: Signature Series

Model: MCAEHWD7X1AA

Unit Type: Electric Heat Kit

 

Heating Capacity: 7.5kW

Application: Auxiliary / Emergency Heat

 

Designed For: Signature Series Stud Mount Air Handlers

Refrigerant Compatibility: R-454B Systems

 

SHIPPING DIMENSIONS

Gross Dimensions:

• Width: 10.38”

• Depth: 14.13”

• Height: 9.25”

 

FREQUENTLY ASKED QUESTIONS

What’s the difference between a 5kW and 7.5kW heat kit?

A 7.5kW heat kit provides 50% more electric heat output, making it better suited for colder climates or larger conditioned spaces.

Is this heat kit required?

No, but it’s strongly recommended if you want stronger backup heating performance during winter operation.

 

Which air handlers work with this model?

Only MRCOOL Signature Series R-454B stud mount air handlers.

Can homeowners install this themselves?

Due to electrical connections, installation should be completed by a licensed HVAC professional.

 

Does the heat kit run constantly?

No. It only activates when supplemental or emergency heat is needed, helping manage energy usage.

 

 

Why Buy From MRCOOL DIRECT?

When you order from MRCOOL Direct, you get:

• ✅ Authorized MRCOOL® dealer – Your warranty is protected
• ✅ Factory-fresh units – No refurbished or mystery sources
• ✅ Fast U.S. shipping – Most in-stock items ship in 1–3 business days
• ✅ Financing options – Make high-efficiency comfort more affordable
• ✅ Real product support – Help with sizing, line set selection, and DIY questions
• ✅ No third-party marketplace middlemen – Just genuine MRCOOL® systems from a trusted MRCOOL® dealer.

BUY DIRECT!

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