The Hotbox greenhouse fan heater is designed to hang from the greenhouse structure or can be free standing. Hotbox Elite features:2.7Kw will Heat 100 sq. ft. , Frost protection 180 sq. ft. All stainless steel construction - ideal for use in greenhouse environments. Thermostatically controlled fan heater which cuts the heat supply but allows the fan to continue to circulate the air to help prevent airborne fungal disease. Fan only option or heater with fan. Fan only 69w. UK manufacture with One Year Guarantee. Dimensions: Length 410mm (16") , Diameter 220mm (8.5"). IPX4 rated.