Mr. Heater Vent-free Blue Flame Natural Gas Heater, 20,000 BTUs

Item currently sold out

Key Features

  • 20,000 BTU output per hour
  • For use with natural gas
  • Heats up to 500 sq. ft.
  • Automatic low-oxygen shutoff system
  • High-limit safety shutoff
  • Includes removable legs
  • Easy Returns

A safe heat source for the garage, porch and more! This Mr. Heater® 20,000 BTU Vent-free Heater can be permanently mounted to a wall or bolted to the floor with the included mounting brackets and fasteners.

Its blue flame tube burner naturally circulates heat around any room up to 500 square feet using the flames' natural convection. No fans or supplemental airflow needed! And like all Mr. Heater products, a factory-standard oxygen-depletion sensor and high-limit shutoff ensure safe operation indoors or out.

  • 20,000 BTU output per hour
  • For use with natural gas
  • Heats up to 500 sq. ft.
  • Blue flame burner delivers even convection heat
  • Automatic low-oxygen shutoff system (oxygen-depletion sensor)
  • High-limit safety shutoff
  • Piezo ignition
  • Includes legs and wall-mounting hardware
  • Safe for indoor use
  • Integrated blower sold separately
  • Measures 19" x 8 x 24"h. without removable legs
  • Weighs 33 lbs.

Bring the HEAT and order today!

Key Specifications

  • Item Number: 651024
  • BTU Rating: 20,000
  • Burn Rate: .020 MCF
  • Variable Output: No
  • Heating Area: 500 sq. ft.
  • Fuel: Natural gas
  • Certified: Yes
  • Low Oxygen Shut-off Switch: Yes
  • Legs Included: Yes
  • Wall Mount Hardware Included: Yes
  • Ignition: Electronic
  • Integrated Blower Fan: Sold separately (item #651020)
  • Thermostat: Yes
  • MFG Number: F299721