MRCOOL® 5kW Heat Kit for Signature Series R-454B Stud Mount Air Handlers, MCAEHWD5X1AA

Product Description 

MRCOOL® Signature Series 5kW Electric Heat Kit for Stud Mount Air Handlers

The MRCOOL® Signature Series 5kW Heat Kit (MCAEHWD5X1AA) is designed specifically for Signature Series R-454B stud mount air handlers, providing dependable auxiliary and emergency heat when outdoor temperatures drop.

This electric heat kit is an ideal solution for mild to moderate winter climates, smaller homes, and applications where supplemental heat is needed during defrost cycles or short cold snaps. With 5,000 watts of electric heating capacity, it adds an extra layer of comfort without excessive energy draw.

Built to integrate seamlessly into MRCOOL stud mount air handlers, this heat kit maintains proper airflow, electrical safety, and factory-approved performance. It installs cleanly inside the air handler cabinet and works in harmony with the primary heat pump system to deliver consistent indoor temperatures when it matters most.

Designed exclusively for R-454B systems, the MCAEHWD5X1AA ensures correct compatibility, safe operation, and long-term reliability—no adapters, modifications, or guesswork required.

For homeowners looking to enhance winter comfort while keeping efficiency in check, the MRCOOL® 5kW Stud Mount Heat Kit is a smart, system-matched upgrade.

 

COMPATIBILITY

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

✔ Factory-approved auxiliary / emergency heat solution

✔ Ideal for small to mid-size systems

 

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

 

TECHNICAL SPECIFICATIONS 

Brand: MRCOOL

Series: Signature Series

Model: MCAEHWD5X1AA

Unit Type: Electric Heat Kit

 

Heating Capacity: 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 does a 5kW heat kit do?

A 5kW heat kit provides electric backup heat to support your heat pump during cold weather, defrost cycles, or emergency heating situations.

 

Is this required for my MRCOOL system?

No, it’s optional—but recommended if you want extra comfort protection during colder days.

  

What air handlers work with this heat kit?

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

  

Can I install this myself?

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

  

Will this increase my electric bill?

The heat kit only operates when needed and is designed for efficient supplemental use, not constant heating.

 

 

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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