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mrcool|SKU:PHK20H

MRCOOL PHK20H 20kW Emergency Heat Strip for Pro Direct Air Handlers

Reliable Emergency Heat When Your System Needs It Most

Ensure reliable, powerful backup warmth with the MRCOOL 20kw ProDirect Heat Kit, engineered to deliver exceptional emergency heat for your Pro Direct air handler. Designed for seamless compatibility with select models, this premium heat strip provides robust performance and peace of mind when you need it most. Elevate your home’s comfort system with a solution built for unwavering dependability.

20kW emergency heat — Reliable backup when temps drop
Built-in circuit breaker — Integrated protection, no extras needed
Direct-fit compatibility — Designed for HAH14048 and HAH14060
240V hardwired power — Consistent 50A minimum circuit delivery
  • Free Shipping -- Ships free to your door
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$183.77

10 in stock

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MRCOOL 20kw ProDirect Heat Kit - PHK20H
MRCOOL 20kw ProDirect Heat Kit - PHK20H
$183.77

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In the box

  • PHK20H heat strip with integrated circuit breaker
MRCOOL 20kw ProDirect Heat Kit - PHK20H
MRCOOL PHK20H 20kW Emergency Heat Strip for Pro Direct Air Handlers
$183.77

Reliable Emergency Heat When Your System Needs It Most

When temperatures drop and your heat pump needs backup, the MRCOOL PHK20H delivers 20kW of emergency heat you can count on. This vetted heat strip integrates directly into your Pro Direct air handler, giving your backyard climate system the resilience it demands through the coldest months. Built with an integrated circuit breaker and UL-listed for safety, it's a smart investment that protects your comfort year-round. Compatible with MRCOOL HAH14048 and HAH14060 air handlers.

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20kW Heating Power
240V Direct Wiring
Integrated Breaker
UL Listed Safety
20 KW
Auxiliary Heater Size
50 A
Min Circuit Ampacity
240 V
Operating Voltage
Vetted Backup Heat You Can Trust Over Big-Box Guesswork

Vetted Backup Heat You Can Trust Over Big-Box Guesswork

When your heat pump struggles in a deep freeze, the last thing you want is a heat strip recommended by someone who can't explain the difference between minimum circuit ampacity and max fuse rating. At Grill Island, every component we carry is vetted for real-world performance before it earns a spot on our shelves. The PHK20H isn't just another line item from a faceless marketplace — it's a pick we'd trust in our own home's system. We test what we sell. If it wouldn't hold up when it matters, we don't list it.

Seamless Integration With Your Pro Direct Air Handler

Seamless Integration With Your Pro Direct Air Handler

The PHK20H is engineered to drop directly into the HAH14048 and HAH14060 Pro Direct air handlers — no retrofitting, no guesswork. At just 2.6 inches deep, 12 inches tall, and 9 inches wide, this heat strip fits within your existing cabinet without forcing modifications. The integrated circuit breaker means you're not hunting for separate protection components or second-guessing your electrical panel. This is an investment in straightforward installation that respects your time and your system's integrity.

Serious Heating Power With Proper Electrical Specs

Serious Heating Power With Proper Electrical Specs

Twenty kilowatts of auxiliary heat at 240V means this strip delivers serious output when your heat pump can't keep up alone. With a 50A minimum circuit ampacity and dual 60A max fuse breakers, the PHK20H is rated for the demands of a real cold-weather backup scenario. UL-listed construction confirms this isn't a shortcut component — it's built to the standard your home's electrical system requires. When the temperature plummets, you need a heat strip that performs on spec, not one that leaves you guessing.

Compatibility Check

Confirm your system matches these requirements before ordering.

  • Air handler is MRCOOL HAH14048 or HAH14060
  • Electrical panel supports 240V with 50A minimum circuit ampacity
  • Installation space accommodates 9 in width by 12 in height

When You Need It

This heat kit serves a critical role in your climate system.

Emergency backup during extreme cold snaps
Supplemental heat for large conditioned spaces
Direct replacement for a failed heat strip

Full specifications

At a glance

Dimensions
9 in
Power
240 V
Full specifications9 data points across 4 categories

Dimensions

Net Width9 in
Net Height12 in
Net Depth2.6 in

Power & Performance

Voltage240 V
Max Fuse Breaker60&60 A
Min Circuit Ampacity50 A
Rated Load20
Auxiliary Heater Sizes20 KW

Compliance & Warranty

UL ListedYes

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We stand behind every product we sell.

Free ShippingShips free to your door — no hidden freight charges.
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★★★★★
“Went with Grill Island over the big-box store down the road. They actually confirmed my HAH14048 compatibility before I ordered. Heat strip dropped in clean, integrated breaker saved me a trip back to the supply house.”
F
First L.Dallas, TX

MRCOOL 20kW ProDirect Heat Kit – PHK20H

Price: $183.77 | Category: Heat Kit

When the temperatures drop, your comfort shouldn’t. The MRCOOL 20kW ProDirect Heat Kit (PHK20H) delivers powerful, reliable emergency heat for your ProDirect air handler, ensuring your home stays warm when you need it most. Engineered for compatibility with HAH14048 and HAH14060 models, this high-capacity heat strip provides robust auxiliary heating to maintain consistent indoor comfort during extreme cold. Built with a built-in circuit breaker for enhanced safety and designed for straightforward installation, the PHK20H is the essential upgrade for any ProDirect system seeking dependable backup heat.

Key Features

  • High-Capacity 20kW Heating: Delivers powerful emergency heat to keep your home comfortable even in the most demanding conditions.
  • Integrated Circuit Breaker: Built-in safety protection helps prevent electrical overloads, offering peace of mind and simplified installation.
  • ProDirect Compatibility: Designed specifically for use with MRCOOL ProDirect air handlers, including models HAH14048 and HAH14060.
  • UL Listed: Tested and certified to meet rigorous safety and performance standards.
  • Compact, Space-Saving Design: Slim profile (2.6 in depth) fits neatly within your air handler for easy integration.

Specifications

Voltage 240 V
Max Fuse / Breaker 60 & 60 A
Min Circuit Ampacity 50 A
Rated Load 20
Auxiliary Heater Sizes 20 kW
UL Listed Yes
Net Depth 2.6 in
Net Height 12 in
Net Width 9 in

Why Choose MRCOOL 20kW ProDirect Heat Kit – PHK20H

Your HVAC system is only as reliable as its backup. The MRCOOL PHK20H heat kit is engineered to deliver the emergency heat you need when your primary system can’t keep up. With a robust 20kW output, it provides substantial heating capacity for larger homes or colder climates, ensuring your family stays comfortable no matter the weather.

Safety and ease of installation are at the forefront of this design. The integrated circuit breaker eliminates the need for a separate breaker box in many setups, reducing installation time and complexity. Plus, with UL listing, you can trust that this component meets the highest standards for safety and performance.

Whether you’re building a new ProDirect system or upgrading an existing one, the MRCOOL PHK20H delivers the dependable, high-capacity emergency heat you deserve. Backed by MRCOOL’s reputation for quality and innovation, this heat kit is the smart choice for homeowners who demand nothing less than the best.

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Frequently Asked Questions

The product data does not specify assembly status at shipment. This heat kit is designed for installation into a compatible air handler by a qualified professional. Refer to the install manual for detailed steps.
The PHK20H is compatible with MRCOOL ProDirect air handlers models HAH14048 and HAH14060. All ProDirect air handlers are compatible with the smaller PHK05H, but the PHK20H is specifically for these larger units.
The PHK20H requires a 240 V power supply. It has a max fuse/breaker rating of 60&60 A and a minimum circuit ampacity of 50 A. The rated load is 20 kW. Always consult a licensed electrician for proper installation.
Yes, the PHK20H includes a heat strip with a built-in circuit breaker. This helps protect the system from electrical overloads. No additional external breaker is specified in the product data.
The net dimensions are 2.6 inches in depth, 12 inches in height, and 9 inches in width. Ensure your air handler has adequate space to accommodate these measurements before installation.
Yes, the product data confirms the PHK20H is UL listed. This certification indicates it has been tested for safety and performance standards in the United States.
The product data does not provide specific maintenance instructions. Generally, keep the area around the air handler clean and dust-free. For detailed care, refer to the install manual linked on the product page.
This 20kW heat kit is for homeowners or professionals seeking emergency or auxiliary heat for MRCOOL ProDirect air handlers HAH14048 and HAH14060. It is ideal for providing supplemental heating in colder climates.
SKU: PHK20H Categories: , Brand:

The Grill Island Promise

We stand behind every product we sell.

Free Shipping Ships free to your door — no hidden freight charges.
30-Day Returns Invest once — if it's not right, send it back on us.
Price Match Guarantee Find it cheaper from an authorized dealer, we match it.

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About mrcool Heat Kit

mrcool is a trusted manufacturer of premium heat kit. Grill Island is an authorized dealer offering the full mrcool lineup with free delivery, price match guarantee, and expert support.

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