Two Stage Infrared Radiant Tube Heaters

Two stage models from Combustion Research Corporation typically range from 30,000 to 250,000 Btu/hr, with high-fire and low-fire settings (low fire approximately 30% less than high fire). This range covers small service garages up to large warehouses and aircraft hangars requiring higher heat output.

Vacuum fired systems use a vacuum exhauster to draw combustion gases through the tube, offering flexible venting for large or irregular spaces, while power vented systems use a blower to push exhaust out, suited for straightforward installations. Both configurations are available across the two-stage product line.

Most two stage radiant tube heaters run on natural gas or propane (LP) gas, with select models like the Reflect-O-Ray OIL EDS available in oil-fired configurations for off-grid or rural facilities without natural gas access.

All two stage radiant tube heaters include a 10-year warranty on radiant tubes against internally created corrosion, along with a 3-year warranty on ignition controls and electrical components, reflecting the durability of aluminized and stainless steel construction.

Two stage infrared radiant tube heaters are widely used in warehouses, aircraft hangars, service garages, auto dealerships, natatoriums, ice arenas, and agricultural buildings. Stainless steel models are specifically engineered for corrosive, high-humidity environments like pools and wash bays.

Two stage infrared radiant tube heaters typically deliver 30-50% energy savings compared to conventional forced-air heating systems. The dual-stage or modulating operation reduces cycling losses and matches heat output to actual demand, minimizing wasted fuel during partial load conditions.