The BF-10 produces an inviting atmospheric warmth quickly and efficiently.The BF-10 is equipped with a hydraulic thermostat with a constant 10,000 BTU input Empire Vent - Free Heaters are virtually 100% fuel efficient No heat is lost since the BF-10 does not require outside venting Empire Vent - Free units do not require electricity to operate Total comfort for half the cost of electric heat Safe operation with auto shut - off safety controls Mounts on floor or wall Proudly Made In USADepth: 6.5 Height: 22 Width: 18