This heater can be used in either unvented or vented mode. Please check local and national building codes for requirements in your area. When used in unvented mode, the products of combustion (exhaust) are expelled into the building. National codes require ventilation in the building to dilute these products of combustion by gravity or mechanical means.
SunStar, U-Tube Positive Pressure Infrared Tube Heater, Fuel Type Propane, Heat Output 150000 Btu/hour, Heat Type Infrared, Model# SPU150-50-L5

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- 50 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 high heat loss areas including loading docks, warehouses, car repair shops, farm buildings or other spot heating applications where uniform energy distribution is desired.
- 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 15ft. above finished floor for uniform energy distribution and human comfort
- Requires the following clearances from any combustible material: 6in. above, 81in. below and 34in. from the sides of the heater
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