Mobile radiator heater features three heat settings (600, 900 & 1500 watts) & a 40-degree to 95-degree range in red on the LED display so you can tell exactly what the temperature is even in the dark. Coverage area is up to 150 square feet. With tip-over safety protection, the heater will automatically turn off if it is knocked over. Design also features safety thermal shutoff & heavy-duty casters for easy relocation.