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ADP unit heaters are engineered for maximum efficiency, increased reliability, and peak performance. Each unit is newly designed for simplified installation with enhanced features.
- Residential and light commercial applications
- Engineered for maximum efficiency, increased reliability, and peak performance
Product Literature
- Unit Heater Product Guide
- Unit Heater Comparison Guide
- Unit Heater Parts Sheet
- Limited Warranty Product manuf. before 8/1/17
- Limited Warranty Product manuf. after 8/1/17
- Unit Heater Troubleshooting Guide
- Unit Heater Sizing Guide
- FOA & HED Series Unit Heater (Discontinued)
- FSA & SEP Series Unit Heater (Discontinued)
- Product Overview

Commercial Unit Heater – UHCM Series
The UHCM Series is designed to meet all of your commercial heating needs. Our patented heat exchanger minimizes air resistance to allow for even heating, reducing stress for increased durability.
Key Features
- Heating capacities from 125,000 – 400,000 BTUH
- Up to 85% thermal efficiency
- Power exhaust and patented heat exchanger made of aluminized or stainless steel
- 30% quieter than previous models providing quiet and smooth operation
- Self-Diagnostic DSI Control Board improving troubleshooting and accuracy
- 2-Stage Operation for enhanced efficiency and system cycle reduction (UHCM 250-400 models)

Residential & Light Commercial Unit Heater – UHRS Series
The UHRS Series is designed to meet all of your residential heating needs. Our patented heat exchanger minimizes air resistance to allow for even heating, reducing stress for increased durability.
Key Features
- Residential low profile unit heater great for garages and shops
- Heating capacities from 30,000 – 105,000 BTUH
- Up to 85% thermal efficiency
- Power exhaust and patented aluminized heat exchanger
- 30% quieter than previous models providing quiet and smooth operation
- Self-Diagnostic DSI Control Board improving troubleshooting and accuracy
Compare Unit Heaters
SERIES |
UHRS
UHRS
The UHRS Series is designed to meet all of your residential heating needs. Our patented heat exchanger minimizes air resistance to allow for even heating, reducing stress for increased durability. ![]() |
UHCM
UHCM
The UHCM Series is designed to meet all of your commercial heating needs. Our patented heat exchanger minimizes air resistance to allow for even heating, reducing stress for increased durability. ![]() |
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DESCRIPTION | Residential & Light Commercial | Commercial | ||||||
FUEL | ||||||||
Natural Gas | ✓ | ✓ | ||||||
Liquid Propane | ✓* | ✓* | ||||||
HEAT EXCHANGER | ||||||||
Aluminium Steel | ✓ | ✓ | ||||||
Stainless Steel | ✓ | |||||||
Separated Combustion | ||||||||
HEAT INPUT(MBTUH) | ||||||||
30 | ✓ ° | |||||||
45 | ✓ ° | |||||||
60 | ✓ ° | |||||||
75 | ✓ ° | |||||||
90 | ✓ ° | |||||||
105 | ✓ ° | |||||||
125 | ✓ | |||||||
150 | ✓ | |||||||
175 | ✓ | |||||||
200 | ✓ | |||||||
250 | ✓ | |||||||
300 | ✓ | |||||||
350 | ✓ | |||||||
400 | ✓ |
✓ Available factory installed * Available field installed kit ° Side return available in 12-36 MBTUH only ** Side return on HW models only