Your company account is blocked and you cannot place orders. If you have questions, please contact your company administrator.

Mr. Heater® Ventless Gas Blue Flame Heater 20,000 - 30,000 BTU

92% of 100
QC Part #
In stock
As low as $199.99 - $242.99
Operating heater above elevations of 4,500 feet could cause pilot/ODS to shut down heater.

Conveniently equipped with a built-in thermostat and a battery-powered electronic ignition, the Mr. Heater Ventless Gas Blue Flame Heater line offers a variety of propane and natural gas heaters from 20,000 - 30,000 BTU. Safety features include a clean burning blue flame tube burner and a factory standard Oxygen Depletion Sensor (ODS). Includes mounting brackets and fasteners for a wall or floor installation.


  • Ignition System: Electronic manual ignitor, one "AA" battery is required to operate ignitor (no matches or lighter needed)
  • Convenient: Comfort control adjustable thermostat
  • Easy To Install: Wall mount or free standing (no venting or chimney required)
  • Safe: Low oxygen shut-off sensor
  • Operates During Power Outages: without electricity
  • Economical: 99.9% efficiency
  • Blower sold separately
  • 4,500' high altitude restriction

Great For:

  • Rec Rooms
  • Enclosed Porches
  • Room Additions
  • Cabins
  • Workshops
BTU Rating 20,000 20,000 30,000 30,000
Dimensions 19" W x 24" H x 8" D 23.5" W x 24" H x 8" D
Weight 27 lbs 31 lbs
Burn Rate 0.926 lbs/hr 0.020 MCF 1.389 lbs/hr 0.030 MCF
Variable Output No No No No
Heats Up To:
Approx. Sq. Ft
500 500 750 750
Fuel Propane Natural Gas Propane Natural Gas
Min. Recommended
Tank Size
20 lb N/A 20 lb N/A
Certified Yes Yes Yes Yes
Low Oxygen
Shut-Off Switch
Yes Yes Yes Yes
Legs Included Yes Yes Yes Yes
Wall Mount
Hardware Included
Yes Yes Yes Yes
Ignition Electronic Electronic Electronic Electronic
Thermostat Yes Yes Yes Yes
Integrated Blower Fan* No No No No
*Sold Separately
Write Your Own Review
You're reviewing:Mr. Heater® Ventless Gas Blue Flame Heater 20,000 - 30,000 BTU
Related Articles