ThermoFlow The electric infrared radiant patio heater has two heat settings, 750w/1,500w, as well as a special ceramic coating on the black panel surface which can trigger far-infrared radiation. The wavefront design of black panel doubles the radiation area and increases the radiation range. You can select low (50% rated power, heating), high (100% rated power, heating) and shutdown setting on the remote controls easy to control how warm you are with this electric infrared radiant heater.