SunStar SPU125-30-L5 U-Tube Positive Pressure Infrared Heater 125,000 BTU Propane
The SunStar SPU125-30-L5 U-Tube Positive Pressure Infrared Heater delivers 125,000 BTU of focused heat across a 30-foot U-tube, making it ideal for standard medium-sized commercial spaces requiring robust radiant warmth, powered by Propane/LP. This model utilizes a positive pressure system to ensure highly efficient heat transfer throughout the tube length. This reliable unit minimizes air stratification and energy loss. Depend on the proven output and rugged construction of the SunStar SPU125-30-L5 U-Tube heater for consistent, comfortable, and cost-effective commercial heating performance on propane.
Description
The SunStar Garage Tube Heater is ideal for residential garages, vestibules, entryways, workshops, enclosed patios, restaurants, smoking shelters, small greenhouses, hard-to-heat small areas and low-ceiling height applications. Low intensity radiant heat can save up to 30% in fuel savings over convection warm air heating. Requires horizontal vent kit, Item# 29794, or vertical vent kit, Item# 28795 (both sold separately). Requires Line Voltage Thermostat, Item# 16284 (sold separately) or 24V Thermostat, Item# 16342 and a 24V Thermostat Relay Kit, Item# 16289 (both sold separately).
NOTE: In residential garage applications, the heater must be vented outside through sidewall or the roof. In commercial/industrial space heating applications, the heater can be indirectly vented (optional exhaust hood sold separately). Please review the detailed Installation & Operating Instructions (attached) for other specific installation requirements (gas pressure, ventilation etc.) prior to purchasing the heater.
What’s Included
- (1) Garage tube heater
- (1) 36in. stainless steel flexible gas connector
| Item# | 16272 |
| Brand | SunStar |
| Manufacturer’s Warranty | 12 months limited parts / No labor |
| Ship Weight | 74.0 lbs |
| Fuel Type | Natural Gas |
| BTU Output | 35,000 |
| Heating Capability (sq. ft.) | 500–2,000 |
| Blower Included | No |
| Thermostat Included | No |
SunStar Natural Gas Garage Tube Heater 35,000 BTU Specs
| Brand | SunStar |
|---|---|
| Heat Output | 35,000 BTU/hr |
| Heating Capability | 500 - 2,000 sq. ft. |
| Fuel Type | Natural Gas |
| Heat Style | Low Intensity Radiant (30% Fuel Savings) |
| Blower Included | No |
| Thermostat Required | Line Voltage or 24V (Sold Separately) |
| Operational Features | Residential Garage/Greenhouse Optimized, Low-Ceiling Installation Friendly |
| What's Included | (1) Garage tube heater, (1) 36in. stainless steel flexible gas connector |
| Ship Weight | 74.0 lbs |
| Standard Warranty | 12 Months Limited Parts / No Labor |







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