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Compare Garage Heaters
Modine Garage Heater
Empire Gas Heater
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Sterling +90% High Efficiency Gas Heaters
GG Heaters | TF Heaters | GF Heaters | Nexus Heaters

Not sure what size heater you need for your greenhouse? Use our Heater BTU Calculator.

Sterling Heaters are Proudly Made in the USA.
Sterling Nexus Gas Heaters Shield GF Stainless Steel Heater
HU Nexus heater       FEATURES
      Stainless Steel Construction
      Tubular Heat Exchanger
      3 to 1 Modulating Controls
      96% Efficient

Modine HDS heaterNexus Heater Advantages
Modine HDS heaterNexus Heaters DIM & SPECS
Modine HDS heaterNexus Heaters Manual
The Sterling Nexus series gas unit heaters are the most efficient and advanced unit heaters available! They are the only +90% efficient unit heater that come standard with:
1. 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!
2 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.
3. 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.

Every HU heater comes setup for the gas type
you select AND includes a free conversion kit .
  Model BTU
Input
BTU
Output
Price
Gas Type
Order Online
HU100 100,000 96,000 $2695
HU200 200,000 192,000 $3295
HU300 300,000 288,000 $4245
HU400 400,000 384,000 $5195
Sterling Nexus heaters are shipped by motor freight. Delivery time is usually 2 to 3 weeks.

 
Sterling Nexus Concentric Vent Kit
sterling TF vent kit
Concentric vents make it easier to have a two-pipe installation for high efficiency furnaces. These vents simplify installation and only require one hole through the wall or roof where the pipes terminate. Without using these vents, the installation would require cutting two holes through the home, one for each pipe. These vents save time and money by reducing the amount of work required. Available in 2", 3", or 4" intake vent sizes.

2" Concentric Vent for HU100
Price: $115    qty:
 
3" Concentric Vent for HU200
Price: $135    qty:
 
4" Concentric Vent for HU300 & HU400
Price: $210    qty:
 
 
Accessories for all Sterling Heaters
Heater Thermostats
 
Sterling heater pipe
Thermostats
 
Gas Connector
Click here to view accessories available for all Sterling heaters.
 
Not sure what size heater you need for your greenhouse? Use our Heater BTU Calculator.

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 ACF Greenhouses
380 Greenhouse Drive
Buffalo Junction, VA 24529
434-374-2706 Phone, 434-374-2055 Fax
888-888-9050 Toll Free


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