This heater cannot be converted to propane. Please see item 4774716 for the propane version of this heater.
SunStar, Straight Positive Pressure Infrared Tube Heater, Fuel Type Natural Gas, Heat Output 50000 Btu/hour, Heat Type Infrared, Model# SPS50-20-N5

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- 20 Foot Emitter Tube Length. Positive pressure- Push Through System pressurizes the products of combustion though the emitter tubes utilizing a blower inside the burner box.
- Ideal for complete building heating using multiple heaters. When a single heater is utilized for building space heating (e.g. spot heating) always use a u-tube for more uniform energy distribution.
- Standard Constuction hot rolled emitter tubes. Standard 4" flue and 4" outside combustion air supply to the control box in contaminated environments.
- The minimum mounting height is 11ft. above finished floor for uniform energy distribution and human comfort
- Requires the following clearances from any combustible material: 6in. above, 56in. below and 22in. from the sides of the heater
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