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Home / Home Improvement / Heating & Cooling / Gas Heaters / 20,000 BTU Vent Free Blue Flame Natural Gas Heater

20,000 BTU Vent Free Blue Flame Natural Gas Heater
20,000 BTU Vent Free Blue Flame Natural Gas Heater

Mr. Heater® 20,000 BTU Vent Free Blue Flame Natural Gas Heater



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Mr. Heater Vent Free Heaters come in radiant or blue flame indoor safe wall-mountable heaters that run off natural gas.

Manufacturer's Part Number: #F299150

Big R SKU: #265090

This Blue Flame 20,000 BTU Natural Gas Vent Free heater is the perfect supplemental heating solution even on the coldest days. This heater is conveniently equipped with a thermostat for superior control of the temperature in your space. Also, with a battery powered electronic ignition, starting it is a breeze - battery included. This unit can be permanently mounted to the wall or securely fastened to the floor with included mounting brackets and fasteners. A clean burning blue flame tube burner uses the natural convection of the burn to circulate warm comfortable air. With a factory standard Oxygen Depletion Sensor (ODS), rest assured this heater will provide you with years of comfortable and safe heat.
  • 20,000 BTU per hour
  • For use with Natural Gas
  • Heats up to 500 Sq. Ft.
  • Blue flame burner for even convection heat
  • Quiet integrated blower for gentle circulation of heated air
  • Thermostat for automatic temperature control
  • Automatic low oxygen shut-off system (ODS)
  • Legs and wall mounting hardware included
  • Blower Fan Kit (F299200 Sold Seperately) - Available for 20K units and up only

    State Restriction:

    Country Restriction:

Weight (Lbs.)28.75
Warranty1 Year Limited
Product is a HeaterYes
BTU per Hour20,000
Heating Area (Sq. Ft.)500
Tank Capacity (Min)No
Run Time(Hrs. at Max BTU)No
Run Time (Hrs. at Min BTU)No
Fuel Consumption/Burn Rate (Gal/Hr)No
Electricity RequiredNo
Maximum Elevation (Ft.)No
Dimension (In.)No
DisclaimerCheck local code for permitted uses. Not for use in bathrooms, bedrooms, or recreational vehicles. 4,500ft high altitude restriction. Propane cylinder must remain outdoors.
UseSupplemental Heating, Recreation Rooms, Enclosed Porches, Room Additions, Cabins, Workshops
Safety Tip-Over SwitchNo
Oxygen Depletion Sensor (ODS)Yes
Heat TypeConvection
Fuel TypeNatural Gas
High Limit Safety Shut-off (HLS)Yes
Hose & Regulator IncludedNo
Indoor SafeYes

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1 Year Limited