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.

Product Brochure

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.

Product Brochure

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.

Product Brochure

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.

Product Brochure

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.

Product Brochure

We're Ready to Help!

Open 24 hours. Call us anytime, and we'll be there to help!

At TDH Mechanical we offer 100% free install estimates! Call us or complete our quote form.