Gas-Fired Infrared Radiant Tube Heaters

A gas-fired infrared heater burns natural gas or propane inside a sealed combustion chamber and radiant tube, emitting infrared energy that heats objects and people directly rather than warming the surrounding air. Ceiling-mounted tube heaters distribute heat evenly across large spaces like warehouses and hangars, reducing dust circulation and preserving floor space compared to forced-air furnaces.

Sizing depends on ceiling height, insulation, air infiltration, and desired temperature rise. Available models range from 30,000 to 250,000 BTU/hr per unit, with multiple units typically combined for larger buildings. Manufacturers offer heat loss calculation and custom design services to determine the correct BTU input, tube length, and mounting configuration for your specific square footage and climate.

Vacuum-fired systems use a single exhauster to draw combustion gases through multiple connected heaters and vent them through one central point, ideal for large custom-engineered installations. Power-vented units are self-contained with an integral blower per heater, offering simpler installation for standalone applications. Both use direct spark ignition and electronic flame monitoring for safe, efficient operation.

Yes. Stainless steel burner housings, reflectors, and radiant tubing are specifically designed for corrosive environments like car wash bays, natatoriums, and chemical processing facilities where road salt, chloramine, or humidity would degrade standard powder-coated components. These stainless steel variants carry the same 10-year tube warranty against internally created corrosion as standard models.

With proper installation and maintenance, these heaters commonly operate for 15-20+ years. Manufacturers back radiant tubes with 10-year warranties against internally created corrosion, while burner ignition controls and electrical components carry 3-year warranties. Dry-tube designs with no filters or moisture-prone components further reduce long-term maintenance and replacement needs.

It varies by system type. Power-vented and vacuum-fired models require flue venting, typically through the roof or wall, sized per unit or connected exhauster capacity. Unvented, no-direct-vent models like the Synergy series eliminate roof penetrations entirely, making them suitable for well-ventilated spaces and protected outdoor or semi-outdoor applications such as loading docks and covered dealership entrances.