Material: The fan is made entirely of anodized aluminum, which will not rust or corrode when the fan is hot. Thermal drive: The electrical energy produced by the burner fan by converting the thermal energy produced by the cooking appliance into electrical energy. Equipped with a magnetic thermometer: the heat fan will slow down and stop. Also comes with a magnetic thermometer to monitor the temperature The power-generating unit converts thermal energy into kinetic energy to drive a motor, which then spins the blades. Thermal fans do not require batteries or electricity and are very environmentally friendly. 4 High Air Volumes: Upgrade 4 hot air blades into room diffusers. The stove fan should be placed at least 4 inches from the stove. Suitable for 80-250 degrees Celsius