Broan Wall Heater, 500/1000W 120Vac, 750W 208Vac, 1000W 240 Vac The 12-7/64 In. X 9-19/64 In. 1,000-Watt White Wall Heater Is A Front-Mountable Unit With A Lubricated Motor That Provides Years Of Maintenance-Free Use. Featuring A Color-Coordinated Knob, This Wall Heater Comes With A Built-In, Adjustable Thermostat That Automatically Maintains A Desired Temperature.