Sterling XF gas heaters are an excellent option for heating large greenhouses, warehouses, and shops. These heaters are certified for commercial and industrial use and come setup for your choice of propane or natural gas operation. Sterling gas heaters are made in the USA. TF heaters have been discontinued and replaced by the XF model.

Sterling XF Gas Heater Features

  • BTU Range: 100,000 to 400,000 BTUs
  • Heater Efficiency: 83%
  • Automatic direct spark ignition (standard)
  • Power vented exhaust (standard)
  • Separated combustion ready
  • Overhead hanging heater
  • Can be automated with a thermostat

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Sterling XF100 Gas Unit Heater sterling, xf100, tf100, heater, gas, propane, xf, tf, furnace, greenhouse, shop, natural, separated, combustion
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Price: $1,299.00
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Availability: In Stock - Usually ships in 2 to 4 days.

    - Replaces Sterling TF100 and SF100 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...

    Sterling XF125 Gas Unit Heater sterling, xf125, tf125, heater, gas, propane, xf, tf, furnace, greenhouse, shop, natural, separated, combustion
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    Price: $1,369.00
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    Availability: In Stock - Usually ships in 2 to 4 days.

      - Replaces Sterling TF125 and SF125 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...

      Sterling XF150 Gas Unit Heater  sterling, xf150, tf150, heater, gas, propane, tf, furnace, greenhouse, shop, natural, dayton, beacon, morris
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      Price: $1,425.00
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      Availability: In Stock - Usually ships in 2 to 4 days.

        - 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...

        Sterling XF175 Gas Unit Heater sterling, xf175, tf175, heater, gas, propane, tf, furnace, greenhouse, shop, natural, dayton, beacon, morris
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        Price: $1,599.00
        Availability: In Stock - Usually ships in 2 to 4 days.

          - Replaces Sterling TF175 and SF175 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...

          Sterling XF200 Gas Unit Heater sterling, xf200, tf200, heater, gas, propane, tf, furnace, greenhouse, shop, natural, dayton, beacon, morris
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          Price: $1,729.00
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          Availability: In Stock - Usually ships in 2 to 4 days.

            - Replaces Sterling TF200 and SF200 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...

            Sterling XF250 Gas Unit Heater sterling, xf250, tf250, heater, gas, propane, tf, xf, furnace, greenhouse, shop, natural, warehouse, beacon, morris
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            Price: $1,889.00
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            Availability: In Stock - Usually ships in 2 to 4 days.

              - Replaces Sterling TF250 and SF250 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...

              Sterling XF300 Gas Unit Heater sterling, xf300, tf300, heater, gas, propane, tf, xf, furnace, greenhouse, shop, natural, warehouse, beacon, morris
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              Price: $2,259.00
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              Availability: Factory Direct - Currently ships in 5 to 6 months

                - Replaces Sterling TF300 and SF300 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...

                Sterling XF400 Gas Unit Heater sterling, xf400, tf400, heater, gas, propane, tf, xf, furnace, greenhouse, shop, natural, warehouse, beacon, morris
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                Price: $2,629.00
                Availability: Factory Direct - Currently ships in 5 to 6 months

                  - Replaces Sterling TF400 and SF400 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...