SKU: 56832309560

MRCOOL 20kW Heat Kit with Circuit Breaker for Signature Series TruInverter Air Handlers | MCAEHFD20X1BA

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Description

MRCOOL 20kW Heat Kit with Circuit Breaker for Signature Series TruInverter Air Handlers | MCAEHFD20X1BAMRCOOL 20kW Heat Kit with Circuit Breaker for TruInverter Air Handlers The MRCOOL 20kW Heat Kit (MCAEHFD20X1BA) is the highest capacity supplemental and emergency heating solution available for MRCOOL Signature Series TruInverter air handlers. Designed for large homes, extreme climates, and high demand applications, this heat kit ensures your system can maintain comfort even under the most demanding conditions. When outdoor temperatures drop to

MRCOOL 20kW Heat Kit with Circuit Breaker for TruInverter Air Handlers

The MRCOOL 20kW Heat Kit (MCAEHFD20X1BA) is the highest-capacity supplemental and emergency heating solution available for MRCOOL Signature Series TruInverter air handlers. Designed for large homes, extreme climates, and high-demand applications, this heat kit ensures your system can maintain comfort even under the most demanding conditions.

When outdoor temperatures drop to extreme levels or your heat pump requires support, this heat kit activates to deliver powerful electric heat directly through your ductwork. It is built to provide dependable performance when standard heating alone is not enough.

Key Features

  • 20kW electric heat strip for maximum heating output
  • Built-in circuit breaker for added safety and simplified installation
  • Designed for MRCOOL Signature Series TruInverter systems
  • Installs directly inside compatible air handlers
  • High-output emergency heat for extreme cold conditions
  • Automatic auxiliary heat activation when needed

Compatibility

This heat kit is compatible with the following MRCOOL Signature Series TruInverter air handlers:

  • 48K BTU Systems
  • 60K BTU Systems

What Does a Heat Kit Do?

A heat kit provides direct electric heat inside your air handler when your heat pump cannot maintain indoor temperature on its own. It acts as a supplemental or emergency heat source, ensuring consistent comfort even in extreme conditions.

Often compared to a high-capacity heating element, it heats air as it passes through the system and distributes it throughout your home via ductwork.

When Is a Heat Kit Used?

  • During extreme cold weather when heat pump performance decreases
  • As emergency heat if the outdoor unit is not operating
  • In high-demand heating scenarios for large homes or open spaces

While heat kits are less energy-efficient than heat pumps, they are critical for maintaining reliable heating performance in cold climates and high-capacity systems.

Installation Notes

This heat kit is designed for installation inside compatible MRCOOL air handlers. Due to the high electrical load, professional installation is strongly recommended to ensure proper wiring, breaker sizing, and safe operation.

Why Choose the 20kW Heat Kit?

If you need maximum heating support for large systems or extreme climates, the MRCOOL 20kW heat kit delivers unmatched output. It is the ideal choice for homeowners and professionals who require dependable, high-capacity backup heating when conditions demand it most.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 56832309560

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4.9 ★★★★★
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R
Verified Purchase
R Secrest
Lowell, US
★★★★★ 5
Very Warm and Comfortable
Size: 12-13, Color: Red/Black Check
Love these. Just like walking on a cloud. They are very warm. Note there is no L or R, fits either foot.
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Reviewed in the United States on April 30, 2026
G
Verified Purchase
Geobub
Los Angeles, US
★★★★★ 3
Seams Separate Quickly
Size: 8-9, Color: Red/Black Check
They fall apart. The seams are terrible and almost immediately separate. Although they are warm and comfortable until stuff comes through the separated seams.
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Reviewed in the United States on March 29, 2026
D
Verified Purchase
David Pritchett
Lowell, US
★★★★★ 5
Meeting my expectations....
Size: 14-15, Color: Grey/White Check
I am a male with pretty large feet (Mens size 14US) and wanted some very warm slippers to wear around the house. I have nerve issues in my toes and if I don't keep my feet very warm they start to hurt. I wanted something both comfortable and warm. I received these a few days ago and so far they have done a great job at keeping my feet warm. The linings are thick and fluffy and the bottoms feel like they have a memory foam inner sole in them. The tops can either be worn up or rolled down. The actual soles are a soft leather-like material. They are thicker than normal cloth, but not hard like rubber soled slippers (I actually wanted something that was more of a slipper and less of a "shoe"). The only down side is that they don't really seem to have a left and right to them (both slippers seem identical), and for awhile no matter how I wore them, they felt a bit like they were on the wrong feet. However, they seem to have formed themselves to my feet and now (through wearing them) it definitely feels like there is a left and a right. I don't know how long these will last, but they were not expensive, so if I get a few months of wear from them, I will be happy and will just order another pair when these wear out. They aren't the most attractive slippers in the world, but they aren't horrible looking and they are very functional.
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Reviewed in the United States on February 24, 2025
J
Verified Purchase
John Palmer
Phoenix, US
★★★★★ 4
for polar fleece slippers with leather soles, these are quite nice
Size: 8-9, Color: Red/Black Check
I bought these to replace some Mug Lugs slippers last fall after they had started to come apart from barely a year of use (they were knitted) and have been wearing them constantly since then. The polar fleece does easily pill somewhat but get a hard use and are quite comfortable too. I wear these in the house most of the time as my feet do not like to wear shoes all day. They are comfortable, and do seem to hold up well. The only other issue is until I get my office chair mat replaced, these catch and can cause problems and have a little, but not enough to worry too much about. They supposedly have an anti slip design on the bottom, but if flour falls on the kitchen floor, not so slip resistant. I chose these as one, they are red, but also plaid and like them a lot. Hopefully, I get more than a years use out of them. I have had several polar fleece sock type slippers similar to these in the past, and the last polar fleece pair in Dk Blue and from Land End finally after several years of constant use, the stitching began to come apart and the sole was separating from the body of the slipper on one slipper. They do keep the feet warm, with or without socks and can, at times, get my feet too warm but I enjoy them quite a bit.
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Reviewed in the United States on May 3, 2025
A
Verified Purchase
avalancheryder
New York, US
★★★★★ 5
Absolute game changer for chronically dry feet/cracked heels
Size: S (up to size 7)-Beige
I had recently bought a pair of silicone heel/ankle wraps to fill out my boot a little since I noticed my heels were lifting when I was skating. I tested them out around the house and noticed they left my heels softer while the rest of my sockless feet got quite dry. So I got these full foot silicone socks to see the effect of having my whole foot covered. I slather the entirety of my feet with Dr. Scholl's Severe Cracked Heel Restoring Balm (love how convenient it is to apply it to my feet with the solid stick form) and then slip them into these silicone socks. After just a couple hours, when I pull out my feet they're (a teeny bit sweaty at first), but then overall soft and smooth and have absorbed the balm fully leaving barely any residue in the silicone sock. I find these silicone socks generally comfortable; I wear them in the evenings while relaxing on the couch, take them off after a couple hours and let my feet breathe a bit, and then reapply my balm and socks and wear them to bed. If I wake up in the middle of the night, which I almost always do (not because of the socks), I'll take the socks off and allow my feet to breathe again. I wear a woman's size 6 shoe and the small size is pretty comfortable. However, I made the mistake of wearing them while being on my feet for a couple hours straight during household chores -- they must've somehow cut off my circulation a bit with the standing, so I wouldn't recommend wearing these silicone socks while being active. And since they're not exactly my foot size, they slide around sometimes and will start to feel tight at my big toe. But if that happens, I just tug on the toe area of the sock to give my big toe more wiggle room and problem solved. Prior to wearing these socks, I was soaking and doing heavy duty exfoliation of my feet every week. These socks seem like they'll work to help me extend the time between soakings and exfoliations. The 5 pack is a great value. So far none have torn, so they seem rather durable. Not sure what I could even do to tear a hole in these.
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Reviewed in the United States on January 16, 2026

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