SunStar SPU175-50-N5 U-Tube Positive Pressure Infrared Heater 175,000 BTU Natural Gas
The SunStar SPU175-50-N5 U-Tube Positive Pressure Infrared Heater delivers a robust 175,000 BTU output across a 50-foot U-tube length, engineered for durable, efficient heating in large commercial and industrial settings using Natural Gas. This heavy-duty model utilizes a positive pressure system to maximize thermal transfer efficiency and ensure uniform radiant heat distribution over expansive areas. The U-tube design offers excellent heat coverage from a single burner. Rely on the powerful output and proven durability of the SunStar SPU175-50-N5 U-Tube heater for reliable, long-lasting performance, minimizing energy loss and maximizing floor-level comfort.
Description
Offers fuel savings up to 50%. Straight Tube heaters ideal for complete building heating. Positive pressure system pressurizes the combustion chamber. All gas and electrical connection at the same end of the heater. Reliable direct spark ignition and 100% gas shut-off safety control. Up to 40ft. of ducting in fresh air or 40ft. sidewall venting capability. Blower is located inside the burner box. Ideal for applications where minimal noise ( less than 60dB) is desired. Heavy duty permanently lubricated and ball bearing blower motor for maintenance-free operation. Highly efficient aluminum reflectors. Includes diaphragm air switch, heavy duty cast iron burner and burner inspection sight glass. Diagnostic monitoring light system. 120V supply required. External 24V thermostat connection or line voltage operation. Mount heaters as high as possible. CSA certified. 5 Year Limited Warranty on tubes. 1 Year Limited Warranty on unit. Made in the USA. Installation and service must be performed by a licensed contractor and must conform to local codes and SunStar’s Installation Instructions. Read the Installation and Operating Instructions for specific Installation requirements prior to purchase. To help pick out the heater that’s right for you, view the Heat Loss Estimating Chart for proper model and heater selection.
What’s Included
- (1) Burner Package: Main Burner and hardware Emitter Tubes and Reflectors
| Item# | 4774003 |
| Brand | SunStar |
| Manufacturer’s Warranty | 1 year limited warranty |
| Ship Weight | 130.0 lbs |
| Fuel Type | Natural Gas |
| Heat Output | 50,000 Btu/hour |
| Heat Type | Infrared |
| Heating Capability | 500 ft² |
| Blower Included | Yes |
| Assembled Width | 13 in |
| Assembled Height | 12 in |
| Assembled Depth | 252 in |
| Thermostat Included | No |
| Volts | 120 |
| Amps | 2 |
| Product Weight | 104.0000 lb |
| Dimensions L x W x H (in.) | 252.0 x 13.0 x 8.0 in |
SunStar U-Tube Positive Pressure Heater 175,000 BTU Specs
| Brand | SunStar |
|---|---|
| Heat Output | 175,000 BTU/hr |
| Heating Capability | 3,000 sq. ft. |
| Fuel Type | Natural Gas |
| Assembled Width | 31 in |
| Assembled Height | 12 in |
| Assembled Depth | 324 in |
| Fuel Savings up to 50% | Yes |
| 100% Gas Shut-off Safety Control | Yes |
| Ball Bearing Blower Motor | Yes |
| Diagnostic Monitoring Light System | Yes |
| Made in the USA | Yes |
| What's Included | (1) Burner Package: Main Burner, Hardware, Emitter Tubes, Reflectors |
| Product Weight | 206.4 lb |
| Ship Weight | 258.0 lbs |







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