Sure Heat 30,000 BTU Blue Flame Dual Fuel Gas Space Heater with Thermostat and Blower 99.9-percent efficient and works with both liquid propane or natural gas fuel source The convection heat warms the air in the room first and then objects. this unit heats up to 1000 square feet Thermostatic control turns blower on and off automatically to keep room at designated temperature Easy installation for wall or floor mount with brackets and connection tube included Piezzo ignition and ods (oxygen depletion sensor) included. omni safety approved