Mr. Heater 30,000 BTU Propane Blue Flame Vent-Free Heater, VF30KBLUELP;

The Mr. Heater Vent Free Blue Flame Propane Heater. Quick, quiet convection heat! Convenient, easy and safe! Not to mention economical and efficient. It's just the ticket when you need to kill the chill in your ice house, cabin, enclosed porch or that drafty room in your house. No venting or chimney required. Features a thermostat for easy temp control. Oxygen depletion sensors, a battery-operated electronic ignition for a quick start. 30,000 BTU model: Heats up to 1,000 sq. ft..