12,000 BTU Infrared Vent Free Natural Gas Wall Heater Cognac Finish 7 in Maximum extension cord 7 in Maximum extension cord length (ft 38 in Certifications and Listings UL Listed Manufacturer Warranty Guaranteed for one year against mechanical defects in manufacture such as power outages ECONOMICAL Cut heating bills by warming only occupied areas COMFORT Manually adjust the heat setting to your desired temperature SAFE Built in oxygen depletion sensor (ODS) immediately shuts down the heater if carbon monoxide or lack of oxygen is detected CONVENIENT 1 continuous press of the battery assisted igniter makes ignition quick and effortless VERSATILE Includes all necessary hardware and bracket for wall mounting UPGRADEABLE Separately sold optional base legs (WBL100) provide the alternative of floor mounting please check local and state codes to determine if vent free heaters are permitted in your locality