Mr. Heater Vent-Free 10,000 BTU Radiant Propane Heater, Multi

10,000 BTU Liquid Propane heater to heat spaces up to 250 sqaure feet. Radiant heat burner Automatic low oxygen shut-off system ODS. CSA Certified Operating this heater at altitudes over 4,500 FT above sea level could cause pilot/ODS to shutdown the heater. Legs and wall mounting hardware included.Run Time: 43.18 hrs