The Airmaster Positive Temperature Coefficient (PTC) heaters are equipped with PTC heating element. They are self-regulating heaters and employs the inbuilt electric fan to drive air flow through the PTC electric heating element to force convection. They are designed to draw full power at colder temperatures, which allows them to reach their threshold temperature as fast as possible. They heat up a space more quickly and uniformly than other heaters with improved safety.