Sterling GF150 Heater
  • Sterling GF150 Heater
  • Sterling GF250 Heater Rear
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This item ships by FREIGHT TRUCK
Price: $1645 - $2999
Availability: Factory Direct - Currently ships in 8 to 10 weeks.
The Sterling Shield GF series gas unit heaters are our most durable commercial heaters. Stainless steel construction on the outside and inside combined with a heavy-duty tubular 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. Sterling GF heaters feature: tubular heat exchanger, power exhaust system, electronic ignition, advanced diagnostic system for dependable worry-free operation, lots of safety features, totally enclosed fan motor (ACF exclusive), corrosion and rust resistant stainless steel components for dependable worry-free operation, safety features like overheating controls and a safety shut-off, and high power fan to provide even heat distribution. They are designed for suspended mounting and require only a vent pipe and connections to a gas and electric line for installation. Some wiring required. Requires 110/120v electricity. Designed for propane or natural gas.


  • 83% efficient
  • Made in the USA
  • Certified for commercial and industrial use
  • Direct spark ignition
  • Power vented exhaust
  • Totally enclosed fan motor (ACF exclusive)
  • Stainless steel casing and heat exchanger
  • 10 year warranty on the burner and heat exchanger

Performance Specifications

For Greenhouse Sizing, use our Greenhouse Heater Size Calculator
Model BTU Input BTU Output W x D x H Weight (lbs)
GF150 150,000 124,500 25 1/4" x 43 1/2" x 33 1/4" 155
GF250 250,000 207,500 37 1/4" x 43 1/2" x 33 1/4" 211
GF400 400,000 332,000 55 1/4" x 44 3/4" x 34" 335

Product Manuals, Tips, Specs, & Guides

Sterling GF Heater Specs and Dimensions
Sterling GF Heater Installation Manual

Item # 40718, 4071810, 4071815, 4071820, 4071825, 4071830, 4071835