MRCOOL UHK08 8kW Electric Heat Kit with Circuit Breaker for Universal Series (R-454B)

MRCOOL UHK08 8kW Electric Heat Kit with Circuit Breaker – Universal Series (R-454B)

The MRCOOL UHK08 8kW Heat Kit delivers powerful supplemental electric heat for MRCOOL Universal Series R-454B air handlers. Designed with an integrated circuit breaker and OEM-grade components, this kit installs directly inside compatible Universal indoor units to provide reliable warmth during demanding cold-weather conditions.

Product Overview

The MRCOOL UHK08 Electric Heat Kit is a factory-engineered auxiliary electric heating module that enhances the performance of compatible MRCOOL Universal Series air handlers. Ideal for colder climates, the 8kW capacity provides fast, stable, and efficient heat output when additional heating is needed.

According to the Universal Series Heat Kit Installation Manual, the UHK08 uses dual heating relays and works seamlessly with approved UAH-series air handlers. Its plug-in integration design, safety protections, and durable construction make it a reliable choice for residential or light commercial applications.

Features

• 8kW supplemental electric heat capacity
• Built-in circuit breaker for enhanced safety
• Factory-approved accessory for MRCOOL Universal Series (R-454B)
• Improves comfort and heating output in low-temperature environments
• Simple internal installation with included mounting hardware
• Includes wiring diagram, breaker label, foam gasket & screws
• Compatible with 208/230V single-phase power
• Durable heating elements for long-term reliability

Compatible With

The UHK08 Heat Kit is compatible with the following MRCOOL Universal Series R-454B Air Handlers:

• UAH18024-O
• UAH18030-O
• UAH18036-O
• UAH18048-O

(Compatibility verified via Universal Series Heat Kit model table.)

Technical Specifications

Brand	MRCOOL
Series	Universal R-454B
Model	UHK08
Unit Type	Universal Series Heat Kit
Heater Capacity	8kW
Voltage	208/230V
Phase	1
Cycle	60 Hz
Internal Protection	Circuit Breaker
Heater Amps	28.8/32.0 A
MCA	37.0/42.0
MOP	40.0/45.0
Net Depth	22 in
Net Height	8.13 in
Net Width	10.63 in
Net Weight	4.5 lbs
Gross Depth	25.63 in
Gross Height	10.25 in
Gross Width	15 in
Gross Weight	12.1 lbs