Hawcafu Oven fan with thermometer

The black fireplace fan has four rotors and operates without batteries or a power connection. Placed on the hot, smooth surface of the stove, the fan spins as the temperature rises (between 85 and 345 °C) and circulates warm air in the room, thereby reducing wood consumption. The stove fan is made of anodized aluminum. An overheating protection feature, consisting of a bimetal safety device, provides additional safety. At temperatures above 345 °C, the safety device lifts the front end of the fan to reduce contact with the stove and protect both the fan and the motor. Despite its speed, the fan operates almost silently.