Dimplex EUH04B74CT 4000 watt 13, 648 BTU electric industrial heater with built-in. Stay cozy with this units 400 sq. Ft. Heating area capability. 13648 BTU of heating output is sure to keep your area nice and warm. Powerful 4000 Watts at 480 Volts. Perfect 350 cfm blower will provide quiet and efficient heating. Heating element is made of nickel chromium resistance wire within a steel sheath. Built-in adjustable thermostat allows for easy heater control. Automatic overheat protection will keep your family safe by interrupting the electrical power to the unit should overheating occur. Comes with a 1 year Manufacturer's warranty.