Reznor Unit Heaters
Gas Fired Unit Heater
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Founded in 1888 in Folkenstone, UK, Reznor Limited is a leading manufacturer of gas fired unit heaters, garage heaters, and warm-air heating systems. Beginning with the original “Reznor” reflector heater developed by founder George Reznor, Reznor has stayed on the cutting edge of gas heating technology with innovations like the Thermocore heat exchanger and the V3 series unit heaters. These units can be used to heat a shop space for use in winter time, provide additional heating to underserved spaces in the home, or as primary heat sources for cabins, warehouses, factories or retail spaces. To meet these needs, Reznor offers a wide variety natural gas and propane fired unit heaters and wall furnaces.
UDAP V3 Series Gas Fired Unit Heaters are available in following capacities and sizes:
- UDAP-30: 30,000 BTU, 82% AFUE
- UDAP-45: 45,000 BTU, 83% AFUE
- UDAP-60: 60,000 BTU, 83% AFUE
- UDAP-75: 75,000 BTU, 83% AFUE
- UDAP-100: 105,000 BTU, 83% AFUE
- UDAP-125: 120,000 BTU, 83% AFUE
- UDAP-150: 150,000 BTU, 83% AFUE
- UDAP-175: 175,000 BTU, 83% AFUE
- UDAP-200: 200,000 BTU, 83% AFUE
- UDAP-225: 225,000 BTU, 83% AFUE
- UDAP-250: 250,000 BTU, 83% AFUE
- UDAP-300: 300,000 BTU, 83% AFUE
- UDAP-350: 350,000 BTU, 83% AFUE
- UDAP-400: 400,000 BTU, 83% AFUE
The UDAS V3 Gas Fired Unit Heaters series is a power vented gas-fired or propane-fired unit heater designed to be used in residential as well as commercial and industrial applications. It is available in 14 sizes from 30,000 to 400,000 BTU/H, with all units up to 125,000 BTU/H approved for residential use. UDAP models offer 82-83% AFUE ratings and are certified by the CSA for US and Canadian installations. These units are compact and provide pleasing aesthetics. They are also built to with stand the hazards and rigors or operation in an industrial setting. Whether you are looking to heat your garage, greenhouse, factory or warehouse, the UDAP series unit heaters will provide you with an attractive, efficient, and durable solution.
UDAS V3 Series Gas Fired Unit Heaters are available in following capacities and sizes:
- UDAS-30: 30,000 BTU, 82% AFUE
- UDAS-45: 45,000 BTU, 83% AFUE
- UDAS-60: 60,000 BTU, 83% AFUE
- UDAS-75: 75,000 BTU, 83% AFUE
- UDAS-100: 105,000 BTU, 83% AFUE
- UDAS-125: 120,000 BTU, 83% AFUE
- UDAS-150: 150,000 BTU, 83% AFUE
- UDAS-175: 175,000 BTU, 83% AFUE
- UDAS-200: 200,000 BTU, 83% AFUE
- UDAS-225: 225,000 BTU, 83% AFUE
- UDAS-250: 250,000 BTU, 83% AFUE
- UDAS-300: 300,000 BTU, 83% AFUE
- UDAS-350: 350,000 BTU, 83% AFUE
- UDAS-400: 400,000 BTU, 83% AFUE
Reznor introduced the first ever separated combustion system for use in industrial settings in the 1960’s. Today they continue that tradition with the UDAS V3 series separated combustion gas-fired unit heaters. This unit provides all the features and benefits of the UDAS unit heater with the additional benefits of separated combustion.
All of the UDAP and UDAS include:
- TCore2 titanium stabilized aluminized steel heat exchanger
- Single burner combustion system with one-piece burner assembly
- Multi-try direct ignition with 100% lockout
- Single stage natural gas valve with adjustment for operation up to 9000 ft
- Sealed control compartment (protects electronics from moisture and debris)
- 115/1/60 Supply voltage
Optional Features:
- Single stage propane gas valve with adjustment for operation up to 9000 ft
- 409 or 316 stainless steel heat exchanger
- 208/230 single phase supply voltage





















