PTC (Positive Temperature Coefficient) Ceramic Heater provides efficient reliable instant heat when turned on. After initial setup heating element becomes virtually self-heating and requires little electrical current to heat an entire room. Adjustable thermostat maintains desired temperature. Ceramic heater has two heat settings one-fan only setting and a two-prong plug. Built-in thermal cutoff prevents the heater from overheating. If the temperature rises above a certain point the thermal cutoff will kick in and stop the heater. Ceramic heater heats 100 square feet on low heat setting or 144 square feet on the high heat setting. 12.5 amperage. 120 Volts. 60hz. 1 000 watts on low. 1 500 watts on high. 5 200 BTU.