Use this highly efficient, low-wattage heater to keep 30-gallon plastic and metal drums warm, thanks to an insulated full-wrap design and patented heat-spreading technology that captures and returns escaping heat, maximizing efficiency. U.S.A. Heating Application: Heat barrels, drums, liquids, chemicals, foods, water, paints, resins, and other temperature-sensitive materials, Volts: 120, Amps: 3.33, Watts: 400, Heat Settings: Preset at 110°F, Thermostat Included: No Heat, insulate and protect your product Optional adjustable thermostat available, Item# 7002312