offers a wide range of gas fired Unit Heaters and Duct Furnaces in the 80% to 81% thermal efficiency range using natural or liquid propane gas. Our heaters are built in our ISO 9002 facility, carry CSA and CGA design approvals, and are listed by the California Energy Code. ADP is also a member of GAMA.

CUH (series) Unit Heaters are the industries very first compact, residentially approved unit heater and set the standard for all other heater manufacturers. All sizes require only a 1" top mounting clearance and feature ADP's "flip flop" feature that allows gas, electrical and flue connections to be changed from one side to the other simply by turning the unit over. The ADP CUH series, unit heater is simply the 1st and best compact, residentially approved unit heater in the business!

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SEP (series) Unit Heaters are the industry standard for conventional unit heaters. Available in 10 sizes ranging from 60,000 btu's through 400,000 btu's, they are 80% thermally efficient. Utilizing aluminized and stainless steel heat exchangers, the SEP units have proven themselves reliable through hundreds of thousands of hours of the toughest North American climates.

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HED (series) Duct Furnaces are available in 14 models and 7 btu sizes ranging from 75,000 btu's through 300,000 btu's with either aluminized steel or stainless steel heat exchangers. HED units are designed to operate at a wide variety of cfm ranges and have temperature rise ranges.

Heater Specifications:

Power exhaust - allows vertical and horizontal venting, tubular heating exchangers to maximize heat transfer and minimize airflow resistance.

Inshot burners - never need adjustment.

Direct spark ignition with lockout - eliminates the pilot light and improves safety.

Self diagnostic control boards - for dependable operation and ease of troubleshooting.

All units (except the HED series duct furnaces) - have quiet, efficient direct drive propeller fans.

Built to ADP's rigorous quality standards and are test fired before shipment.