SunStar SIU75-20-N5 U-Tube Vacuum Infrared Heater 75,000 BTU Natural Gas
The SunStar SIU75-20-N5 U-Tube Vacuum Infrared Heater provides 75,000 BTU of heat across a 20-foot U-tube, making it an excellent, durable solution for smaller commercial and industrial applications. This Natural Gas unit utilizes a vacuum (negative pressure) system, which maximizes heat transfer efficiency and ensures safety by pulling combustion products through the sealed tube. The U-tube configuration is perfect for effective radiant coverage in standard service bays or workshops. Choose the robust construction and advanced safety features of the SunStar SIU75-20-N5 U-Tube heater for reliable, cost-effective, and safe radiant heating in demanding settings.
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# | 4744891 |
| Brand | SunStar |
| Manufacturer’s Warranty | 1 year limited warranty |
| Ship Weight | 162.0 lbs |
| Fuel Type | Natural Gas |
| Heat Output | 100,000 Btu/hour |
| Heat Type | Infrared |
| Heating Capability | 1,250 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 |
SunStar SIU75-20-N5 Vacuum Infrared Heater Specs
| Brand | SunStar |
|---|---|
| Heat Output | 100,000 BTU/hr (Per Table) |
| Heating Capability | 1,250 sq. ft. |
| Fuel Type | Natural Gas |
| Assembled Width | 13 in |
| Assembled Height | 8 in |
| Assembled Depth | 360 in |
| Vacuum Combustion System | Yes |
| Totally Enclosed Combustion Chamber | Yes |
| Heavy Duty Draft Inducer Assembly | Yes |
| Direct Spark Ignition | Yes |
| 100% Gas Shut-off Control | Yes |
| Sidewall Venting Capability (75ft) | Yes |
| Made in the USA | Yes |
| What's Included | (1) Burner Package: Main Burner, Hardware, Emitter Tubes, Reflectors |
| Product Weight | 129.6 lb |
| Ship Weight | 162.0 lbs |








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