Williams 20,000 BTU/hr Blue Flame Natural Gas Heater with Automatic Thermostat
List Price: $387.50
At Home Depot
The Williams Blue-Flame 18-1/8 in. x 24-43/64 in. 20,000 BTU Vent-Free Natural Gas Wall Heater allows you to conveniently control the temperature of an area up to 900 sq. ft., as it comes with a manual thermostat which allows you to set it and forget it. This wall heater runs on natural gas and is easily started via the piezo-style ignition. An automatic shutoff function helps increase the safety of this heater. Electricity is not required to operate this unit, making it suitable as a primary heating source off the grid or as a backup in case of power outages.