Unit Heaters

These unit heaters are the perfect solution for heating warehouse and garage spaces.

TDH Mechanical Inc, Heating and Cooling Contractors > Products > Unit Heaters

ADP Unit heaters

FSA Series - Low Profile Unit Heaters

Residential low profile heating units great for garages and shops. Sidewall venting which eliminates roof ventilation.

> Wiring junction box is located inside of unit.
> 1” clearance from ceiling for easy installation.
> Heating capacities from 30,000 – 75,000 BTUH.
> Up to 81% thermal efficiency.
> Self-diagnostic board with LED display improves troubleshooting.
> Power exhaust system allows horizontal venting to 25 ft.
> Tubular heat exchangers made of aluminized steel.
> Aluminized steel in shot burners provide efficient trouble free operation.
> Direct drive propeller fans are dynamically balanced for quiet and smooth operation.

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SEP Series Commercial Unit Heaters

Introducing the SEP & HED Series by ADP. These large commercial unit heaters are the perfect solution for heating warehouse and garage spaces.

> Heating capacities from 100,000 - 400,000 BTUH. Up to 80.5% thermal efficiency.
> Stainless steel heat exchanger is available for longer product life.
> Power exhaust system with a sealed flue collector allows conventional vertical or horizontal venting to 35 ft.
> Sidewall venting eliminates roof penetrations. Wiring junction box is located outside of unit.
> Self-diagnostic board with LED display improves troubleshooting efficiency and accuracy.
> Integrated spot nuts for easy installation using threaded rod.

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FOA Series - Separated Combustion Unit Heaters

Perfect for light commercial and green house applications

> Heating capacities from 45,000 – 300,000 BTUH.
> Up to 82% thermal efficiency.
> Compact cabinet design on 45,000 – 75,000 BTUH models.
> Hinged door allows easy access to components.
> Sidewall venting eliminates roof penetrations.
> Self-diagnostic board with LED display improves troubleshooting efficiency and accuracy.

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Reznor Unit heaters

Reznor's V3 Series UDAP

These gas-fired unit heaters are power vented in order to eliminate heat losses up the flue pipe. Power vented models have a higher initial cost than similar “gravity” vented models, but will save money on fuel costs. UDAP heaters are designed for 82-83% thermal efficiency often meeting utility company thresholds for rebate incentives.

All Reznor V3 series heaters are CSA Design Certified, and have a refreshing appearance with a glossy white cabinet finish.

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Reznor's V3 Series UDAS

as-fired separated combustion unit heaters are available in 14 sizes ranging from 30,000 to 400,000 BTUH gas input (Sizes 30-125 are approved for residential application). Model UDAS heaters are designed for 82-83% thermal efficiency and are approved for installation in the United States and Canada by the Canadian Standards Association (CSA).

The first ever separated combustion system in the commercial/industrial heating industry was introduced on a Reznor heater in the 1960's, and that proven technology is continued in this new separated combustion product. Model UDAS separated combustion units require installation of a specially designed combustion air/vent system including the unique concentric adapter box that allows for only one building penetration for both the vent and combustion air.

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