The Sterling Nexus series gas unit heaters are the most efficient and advanced unit heaters available! They are the only +90% efficient unit heaters that come standard with:
- Modulating controls which allow the heaters to vary their output anywhere from 35% to 100% of capacity. Modulation is automatically handled by the heater, so no special thermostat is needed. Up to 99% efficiency can be obtained at its lowest output!
- Stainless steel casing and heat exchanger provides maximum protection against moisture and rust making them a great option for greenhouses, processing plants, agricultural buildings, and any other area where moisture is a problem.
- Best in class heat delivery with an average air temperature raise of 55° and heat throw of up to 150'.
Sterling Nexus heaters are designed for suspended mounting and require a vent pipe and connections to gas, electric, and condensate lines for installation. Some wiring required. Requires 110/120v electricity. Designed for propane or natural gas. All units can be vented with PVC pipe.
Features
- +96% efficient
- Made in the USA
- Certified for residential, commercial, and industrial use
- 3 to 1 modulating controls
- Power vented exhaust
- Separated combustion capable
- Stainless steel casing and heat exchanger
- 10 year warranty on the burner and heat exchanger
Performance Specifications
Model
|
BTU Input |
BTU Output |
W x D x H |
Weight (lbs) |
HU50 |
50,000 |
48,600 |
42 13/16" x 32 5/8" x 12 1/4" |
120 |
HU100 |
100,000 |
96,000 |
42 13/16" x 38" x 17 1/4" |
180 |
HU150 |
150,000 |
143,000 |
54 13/16" x 41" x 17 1/4" |
209 |
HU200 |
200,000 |
192,000 |
54 13/16" x 42" x 17 1/4" |
260 |
HU300 |
300,000 |
288,000 |
54 13/16" x 42" x 25 11/16" |
323 |
HU400 |
400,000 |
384,000 |
54 13/16" x 42" x 33 7/16" |
385 |

Sterling Nexus HU Heater Advantages
Sterling Nexus HU Heater Specs and Dimensions
Sterling Nexus HU Heater Installation Manual
Sterling Nexus HU Heater QuickStart Installation Guide
Item # 4073, 40735, 4073095, 4073100, 4073105, 4073107, 4073108, 4073110, 4073115, 4073120, 4073125, 4073130, 4073135
Overall Customer Rating of 3 Reviews: