• Sterling XF150 Gas Unit Heater  - 4071250
  • Sterling XF150 Gas Unit Heater  - 4071250
  • Sterling XF150 Gas Unit Heater  - 4071250
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Price: $1,425.00
AVAILABILITY:
Availability: In Stock - Usually ships in 2 to 4 days.
EXTENDED WARRANTY:
GAS TYPE:
HEAT EXCHANGER:
GAS VALVE:
ELEVATION:
What are these options for?
- Replaces Sterling TF150 and SF150 heaters -

The Sterling XF series gas unit heaters replace the TF and SF series heaters and combine them into one unit that can be vented as standard open combustion (Exhaust pipe only) or separated combustion (Using both an exhaust and intake pipe). They are a great heating option for large greenhouses, warehouses, commercial structures, etc. Sterling XF heaters feature: tubular heat exchanger, power exhaust system, electronic ignition, advanced diagnostic system for dependable worry-free operation, lots of safety features, corrosion and rust resistant aluminized steel components for dependable worry-free operation, safety features like overheating controls and a safety shut-off, high power fan to provide even heat distribution, and a baked-on enamel finish made to protect the XF from harsh environments. 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.

Sterling XF Heater Features

  • 83% efficient
  • Made in the USA
  • Separated combustion ready
  • Certified for commercial and industrial use
  • Direct spark ignition
  • Power vented exhaust
  • Convenient diagnostic light and thermostat connections on outside casing
  • 10 year warranty on the burner and heat exchanger

Heater Upgrade Options

Extended Parts Warranty
This extends the included 1 year parts warranty to 3 years. If replacement parts are needed, they will be provided no charge and shipped for free during the life of the warranty. Click here for terms

Heater Gas Type Setup
The heater will come equipped from the factory for whichever gas type you choose.

Stainless Steel Heat Exchanger
If the heater will be in a corrosive environment, upgrading to a stainless steel heat exchanger will increase the life of the heater. Units with stainless steel heat exchangers ship direct from Sterling. The current ship time is listed in the option selection area above. Must be ordered with heater.

2 Stage Gas Valve
Heaters with a two-stage gas valve start on the 1st stage at half output and only switch to the 2nd stage, full output, if the temperature inside the room continues to drop. This allows the heater to run more efficiently saving gas and money. Units with 2 stage valves ship direct from Sterling. The current ship time is listed in the option selection area above. Must be ordered with heater.

Elevation
If the heater will be installed at a location that is over 5000' above sea level, Sterling makes a special high altitude model for this application. Units setup for high altitude (above 5000') ship direct from Sterling. The current ship time is listed in the option selection area above. Must be ordered with heater.

Performance Specifications

For Greenhouse Sizing, use our Greenhouse Heater Size Calculator
Model BTU Input BTU Output W x D x H Weight (lbs)
XF100 100,000 83,000 25 1/4" x 43 1/2" x 33 1/4" 133
XF125 125,000 103,750 25 1/4" x 43 1/2" x 33 1/4" 145
XF150 150,000 124,500 25 1/4" x 43 1/2" x 33 1/4" 155
XF175 175,000 145,250 37 1/4" x 43 1/2" x 33 1/4" 191
XF200 200,000 166,000 37 1/4" x 43 1/2" x 33 1/4" 201
XF250 250,000 207,500 37 1/4" x 43 1/2" x 33 1/4" 211
XF300 300,000 249,000 55 1/4" x 44 3/4" x 34" 307
XF400 400,000 332,000 55 1/4" x 44 3/4" x 34" 335

Product Manuals, Tips, Specs, & Guides

Sterling XF Heater Specs and Dimensions
Sterling XF Heater Installation Manual
Greenhouse Heater Size Calculator

Item # 4071240, 4071250   Model # XF150A1NS111, XF150A1PS111, TF150A1NS111, TF150A1PS111

Overall Customer Rating of 3 Reviews:
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Whitwell, Tennessee

Sterling XF150 Gas Unit Heater

Rating:
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Very easy to install. Finished getting the wiring done yesterday with a new thermostat. Our HVAC contractor was impressed with the unit. Fired right up after being connected to everything. This is for a volunteer fire department, had a Sterling unit there before that lasted for 30 years. Hoping this will last that long!

Sterling XF Heater

Rating:
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We have been using Sterling heaters in our greenhouses for years. I like that we don't have to pay extra for sealed combustion any more.

Sterling Heater

Rating:
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This is a nice heater, smaller and lighter than one might think, which is a good thing.
I did the installation, power and control wiring myself and it was all very straightforward & relatively easy.
I had my energy provider plumb and run the propane and the heater fired right up. Beautiful heat for my 40’ x 30’ greenhouse in central NY.