Barn Heaters & Heating Systems for Sale

A 40 lb propane tank holds approximately 9.4 gallons, yielding roughly 860,000 BTU of energy. At a continuous 30,000 BTU/hr draw, the tank would last approximately 28 hours. However, dual-stage and modulating Combustion Research heaters cycle between high and low fire, so real-world runtime is typically significantly longer than that theoretical maximum.

BTU requirements depend on your barn's square footage, ceiling height, insulation level, and local climate. Combustion Research offers heat loss calculation services and systems ranging from 30,000 to 250,000 BTU/hr. As a general starting point, well-insulated barns typically require 30–50 BTU per square foot, while uninsulated structures may need 50–75 BTU per square foot.

Power-vented systems use a powered exhauster to push combustion gases out through a flue, making them suitable for most standard barn installations. Vacuum-fired systems use a vacuum pump that draws gases through the tube, offering superior heat extraction efficiency and flexibility for complex layouts. Both configurations are available from Combustion Research in single-stage, dual-stage, and modulating operation types.

All Combustion Research barn heaters are available for both natural gas (NG) and propane (LP) operation. Specific inlet pressure requirements vary by model — LP/propane systems require a minimum of 11 inches WC and natural gas systems require a minimum of 7 inches WC. Contact a representative to confirm the correct model configuration for your fuel supply.

It depends on the system type. Synergy Series heaters require no direct venting and feature fewer roof penetrations, making installation simpler. Power-vented and vacuum-fired models such as the Omega II and Reflect-O-Ray series require a flue or exhaust connection. All unvented Synergy models are CSA certified and may also be used in protected outdoor environments.

Combustion Research Corporation provides a 10-year warranty on radiant tubes for internally created corrosion across most product lines. Select models also include a 3-year warranty on ignition controls and electrical components. All factory-tested systems ship 100% inspected. A 1-year limited warranty on the complete product unit is included with Synergy Series heaters.