Eco-Heater Inc T400DS 400 Watt Wall Mounted Ceramic Convection Heater 23.5 in. sq., and mounted about 3/4 in. off the wall Serves as a convection heat channel drawing cool air from the floor and heating the air so that it rises Silent flow technology delivers warm air in an environmental and economically friendly manner Optional thermal panel increases efficiency by blocking heat absorption in to cold walls thereby directing more warmth in to the air flow Silent convection heating uses only 400-Watt of energy as opposed to the typical 1500-Watt of energy