SunStar SIU50-20-TG-N5 Tough Guy U-Tube Vacuum Infrared Heater 50,000 BTU Natural Gas
The SunStar SIU50-20-TG-N5 Tough Guy U-Tube Vacuum Infrared Heater delivers 50,000 BTU of focused warmth across a compact 20-foot U-tube, ideal for small commercial garages and specialized work areas. This Natural Gas Tough Guy model combines the durability needed for harsh environments with the high-safety, high-efficiency benefits of a vacuum (negative pressure) system. The U-tube design maximizes the radiant surface area, ensuring comfortable, uniform heat delivery directly to the work zone. The SunStar SIU50-20-TG-N5 Tough heater is a reliable, compact, and resilient solution for economical heating performance in demanding light commercial applications.
Description
Offers fuel savings up to 50%. Straight Tube heaters ideal for complete building heating. Vacuum system pulls products of combustion through combustion chamber for increased radiant efficiency and greater safety. Reliable direct spark ignition and 100% gas shut-off safety control. Up to 50ft. of ducting in fresh air and 75ft. sidewall venting capability. Vacuum system features a totally enclosed combustion chamber. Heavy duty draft inducer assembly features permanently lubricated totally enclosed ball bearing 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. 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# | 4744963 |
| Brand | SunStar |
| Manufacturer’s Warranty | 1 year limited warranty |
| Ship Weight | 162.0 lbs |
| Fuel Type | Propane |
| Heat Output | 75,000 Btu/hour |
| Heat Type | Infrared |
| Heating Capability | 1,000 ft² |
| Blower Included | Yes |
| Assembled Width | 13 in |
| Assembled Height | 8 in |
| Assembled Depth | 360 in |
| Thermostat Included | No |
| Volts | 120 |
| Amps | 3 |
| Product Weight | 129.6000 lb |
| Dimensions L x W x H (in.) | 360.0 x 13.0 x 8.0 in |








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