The Sealey DEH ductable series of portable high output commercial / industrial electric fan heaters are designed for use in warehouses, workshops, nurseries, showrooms, storage rooms, construction sites and containers, ideal for medium to large spaces where a 415V 16A 3 phase supply is available. Both economical and efficient with its integrated powerful fan, the heat is concentrated to the ambient air and the heating elements are enclosed in a stainless steel jacket which makes a comfortable heat. The Sealey DEH series of commercial / industrial electric fan heaters consume no oxygen and are absolutely odorless, thus being a considerable advantage when being used in poorly ventilated areas. IPX4 rating for use in damp areas. The heat output can be adjusted in 3 stages, fan only, 1/2 power and full heat and the temperature can be adjusted by the integrated thermostat. In the summer, they can be used for ventilating rooms when used on fan only setting and in winter frost protection if required.