SunStar SIU50-30-L5 U-Tube Vacuum Infrared Heater 50,000 BTU Propane
The SunStar SIU50-30-L5 U-Tube Vacuum Infrared Heater provides 50,000 BTU along a 30-foot U-tube, combining the high safety of a vacuum (negative pressure) system with excellent radiant coverage for medium commercial spaces running on Propane/LP. This unit is ideal for areas where uniform radiant coverage is essential, such as assembly lines or garages. The vacuum operation ensures exceptional heat transfer efficiency and safety by pulling combustion products through the sealed tube. The SunStar SIU50-30-L5 U-Tube heater is a reliable, safe, and cost-effective choice for industrial environments requiring focused radiant heating performance across a longer U-tube path.
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# | 4774741 |
| Brand | SunStar |
| Manufacturer’s Warranty | 1 year limited warranty |
| Ship Weight | 202.0 lbs |
| Fuel Type | Propane |
| Heat Output | 150,000 Btu/hour |
| Heat Type | Infrared |
| Heating Capability | 2,000 ft² |
| Blower Included | Yes |
| Assembled Width | 13 in |
| Assembled Height | 12 in |
| Assembled Depth | 612 in |
| Thermostat Included | No |
| Volts | 120 |
| Amps | 2 |
| Product Weight | 190.4000 lb |
| Dimensions L x W x H (in.) | 612.0 x 13.0 x 8.0 in |







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