King Electric PX ECO2S Electronic Wall Heater, 1750 Watt, 208 Volt, WhiteSave Energy with this Designed Electronic Wall Heater The PX ECO2S smart heater delivers maximum energy efficiency with automatic 2 stage heating, automatically using the lowest wattage needed to heat the room. In a cold room it utilizes full power to heat the room quickly. Once the desired temperature is achieved, the heater automatically reduces the wattage to maintain the room temperature and save energy. With the ECO2S Remote Temperature Sensor,