SKU: 72799378472

MRCOOL Universal (2nd Gen) Air Handler Electric Heat Kit w/ Circuit Breaker — 5kW, 8kW, 10kW, 15kW, 20kW

Sale price$164.70 Regular price$183.00
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Ships within 48 hours · Estimated delivery Aug 22 - Aug 27

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Description

MRCOOL Universal (2nd Gen) Air Handler Electric Heat Kit w/ Circuit Breaker — 5kW, 8kW, 10kW, 15kW, 20kWUpgrade your MRCOOL Universal 2nd Gen central ducted system with a factory matched Electric Heat (Emergency Aux) Kit. This add on installs in the air handler and provides an extra boost of electric heat when outdoor temperatures drop well below your heat pumps rated heating rangehelping maintain comfort during cold snaps. Available sizes: 5kW 8kW 10kW 15kW 20kWIncludes: model specific heat strip assembly with integrated circuit breaker Why add a heat

Upgrade your MRCOOL Universal 2nd Gen central ducted system with a factory-matched Electric Heat (Emergency/Aux) Kit. This add-on installs in the air handler and provides an extra boost of electric heat when outdoor temperatures drop well below your heat pump’s rated heating range—helping maintain comfort during cold snaps.

Available sizes: 5kW • 8kW • 10kW • 15kW • 20kW
Includes: model-specific heat strip assembly with integrated circuit breaker

Why add a heat kit?

  • Cold-weather backup: Heat pumps naturally lose heating capacity as outdoor temps fall. The heat kit supplies aux/emergency heat to cover those lows.

  • Comfort & reliability: Smooth transitions during defrost and extreme weather.

  • Factory-matched fit: Designed for MRCOOL Universal 2nd Gen air handlers for correct airflow, safeties, and wiring.

Which size should I choose?

  • Smaller air handlers → smaller kW (check your model label/manual).

  • Warmer/Southern climates: often optional; a smaller kW is typically sufficient for rare cold snaps.

  • Colder/Northern climates: recommended; choose a larger kW where supply power and air handler size allow.

Tip: Match heat-kit kW to your air handler model and available electrical capacity. When in doubt, contact us and we’ll confirm the best fit.

Key features

  • Circuit breaker included for the kit (model-specific)

  • Aux/Emergency heat for sub-freezing weather

  • Designed for MRCOOL Universal 2nd Gen air handlers

  • DIY-friendly for confident installers; professional assistance recommended where required by code

Compatibility

  • For MRCOOL Universal 2nd Gen central ducted air handlers only.

  • Heat kits are model-specific. Please verify your exact air-handler model number and electrical specs before ordering. We’re happy to help you confirm.

What’s in the box

  • Electric heat strip assembly (size selected)

  • Integrated circuit breaker (factory-matched)

  • Mounting hardware (varies by model)

  • Install/connection guide

Installation & safety notes

  • Turn off power at the disconnect/breaker before service.

  • Use proper wire gauge and overcurrent protection per the air handler/kit nameplate and local code.

  • Ensure airflow and duct static pressure meet the air handler’s requirements when running electric heat.

  • A licensed electrician/HVAC professional may be required by local code.


Need help choosing 5kW, 8kW, 10kW, 15kW, or 20kW?
Send us your air-handler model number, climate/zip code, and available breaker size—we’ll recommend the right kit for your system.

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: 72799378472

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Caitlin
Waukegan, US
★★★★★ 5
Will last a good while despite not being overly thick.
Color: Black/Assorted, Size: 6-10
I purchased these socks about 14 months ago and I use them regularly with maybe five other pairs of socks made by a different brand. No holes so far. I used to buy Hanes and they barely lasted a week before I had to throw a pair of them out. I still use all six of these socks (assuming I can find them!) I often walk outside on my cement patio or tiptoe through the grass in socks so I am a little tough on them I guess you could say. I'm also very active. I don't exercise at a gym and thus don't use them in tennis shoes but walk most of the day when at home. I run around in my yard doing yard work and gardening. I also have worn them regularly at work while walking around in my steel toed shoes (which rub) and they somehow lived through that. They still look fine: no discoloration or weak spots in the heel which is usually the first sign of wear for me. They are comfortable too. I don't feel any line at the toes and they don't rub or fit too tight in any way. I love the height of these, they are so short that they slip down in your shoe but not overly tall (I don't like the look and feel of tall socks). They are also lightweight and very breathable. So great quality for the price. I'd recommend and I will likely buy the same brand in the future.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 17, 2022
R
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Rebecca
Lowell, US
★★★★★ 5
Excellent, sturdy socks
Color: White/Assorted, Size: 6-10
These socks are a little pricey, but they're thick and well-made. I also love the little pops of color on top. I got a set at a local sports store and was so impressed that I immediately got another off Amazon. Two years later, I still have all twelve pairs, and they're as comfy and good-looking as they were on day one. The cheaper socks I bought previously have become thin, cold, and holey.
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Reviewed in the United States on May 17, 2023
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Bike Rider
Whiting, US
★★★★★ 4
Pretty good
Color: Rebel Pink Assorted Locked-in Fit, Size: Medium
Quality seems good, but different colors seem to be different sizes. The whitish ones fit fine, but the colored ones seem a tad shorter.
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Reviewed in the United States on July 5, 2025
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mj
Natrona Heights, US
★★★★★ 5
soft, comfortable, stretchy
Color: Black/Pink Assorted Locked-in Fit, Size: Medium
Seems like some high quality, lightweight socks. Very pleased with my purchase. They are very soft, they fit just right, and the material is somewhat stretchy.
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Reviewed in the United States on November 8, 2024
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Amazon Customer
Charlottesville, US
★★★★★ 5
Great
Color: Beta Tint Assorted Locked-in Fit, Size: Medium
Great socks - comfortable, wear everyday
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Reviewed in the United States on July 14, 2025

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