Commercial and Industrial Gas Infrared Radiant Tube Heaters

Gas infrared radiant tube heaters use natural gas or propane to heat an emitter tube, which radiates energy downward to floors, equipment, vehicles, inventory, and people. Unlike forced-air systems, they do not rely on heating the entire air column. This makes them especially effective in high-bay, drafty, or door-cycling facilities.

These systems are commonly specified for warehouses, distribution centers, manufacturing plants, aircraft hangars, auto dealership service bays, CNG repair facilities, military maintenance buildings, ice arenas, natatoriums, agricultural buildings, and industrial shops. The best fit depends on ceiling height, ventilation, fuel availability, occupancy patterns, and clearance requirements.

Combustion Research Corporation documents energy savings of 30-50% compared with conventional forced-air heating in comparable commercial applications. Savings come from heating occupied surfaces instead of unused ceiling air, faster recovery after overhead door cycles, and the ability to zone heat around work areas instead of conditioning the entire volume.

Sizing depends on square footage, insulation level, ceiling height, door cycle frequency, application type, fuel source, and required comfort level. As a broad reference, warehouses may range from 25-40 BTU per square foot in insulated low-bay spaces to 65+ BTU per square foot in poorly insulated or frequently opened high-bay facilities.

Combustion Research Corporation offers gas-fired radiant systems for natural gas and propane applications, with oil-fired Reflect-O-Ray variants available for certain off-grid facilities. Electric infrared options exist for applications where gas is impractical, but gas-fired radiant tube systems typically offer lower operating costs where gas service is available.

Clearance requirements vary by model, input, mounting angle, configuration, and surrounding materials. Reflect-O-Ray and Omega II clearances may range widely, so each project should use the product submittal sheet and coordinate with the Authority Having Jurisdiction. Proper layout protects combustible materials while maintaining effective radiant coverage.

Reflect-O-Ray is a custom-engineered vacuum radiant tube system for larger or more complex facilities, including high-bay warehouses, hangars, and full-building layouts. Omega II is a power-vented, unitary radiant tube system suited for smaller warehouses, service bays, and zone-by-zone deployment where a pre-engineered package is more practical.

Omega II, Reflect-O-Ray, and Serengeti-IR radiant tubes carry a 10-year warranty for internally created corrosion, and burner controls carry a 3-year warranty. Synergy high-intensity systems carry a 1-year limited warranty. Warranty selection should be considered alongside construction material, fuel type, application environment, and maintenance expectations.