Aiperq Heat-powered stove fan with 3 blades for fireplace/wood stove.

Compact size: 22.1 x 17 x 9.1 cm, made of aluminum.
Operates without batteries or electricity -- the fan uses the heat from the stove surface to rotate, automatically adjusting its speed according to the stove surface temperature.
Long lifespan -- there is a bimetallic safety device in the base of the fan. If the surface temperature reaches more than 300°C, the safety device will gently raise the front of the fan to protect the TEG module and the motor.
Very quiet: the propeller is the only moving part. It's so quiet you won't even notice the fan, but you'll feel the heat! Less fuel consumption, more efficiency: reduces fuel consumption and heats the room faster.