Features:Heat Powered: The stove fan generates power by converting the heat from the stove into electricity to drive the motor, then the blades spin. No batteries or electricity required, eco-friendly.Large Air Volume: 4 blades diffuse warm air throughout the whole room. Just place the stove fan on a smooth flat surface of the top of the stove, near the side or back of the stovepipe.70~345 Working Temperature: The fan spins when the temperature is reached 70 (158). The hotter the base of the fan gets, the faster the fan turns, and the more air the fan circulates into the room.Anodized Aluminum Material: The whole fan is made from anodized aluminum, which will not rust or corrode when the fan is getting hot. It will slow down and stop as the stove cools.Silent Operation: The only moving part is the fan blades, quiet and no noise generated. Easy to clean up with a slightly damp cloth, do not immerse it into water.Note:1. Be sure to place the stove fan on a smooth flat surface of your wood stove top near the side or back of the stovepipe.2. The surface temperature on the location placed the fan shall be more than 70, otherwise, it won't work.3. Keep the fans away from kids when in use.Specifications:Name: Fireplace fanWorking Temperature: 70~345AirFlow: 80-170CFMNoise: 45dBMaterial: Anodized AluminumColor: BlackItem Size: 21*16*13cm/8.26*2.99*5.12inPackage Size: 21*19.5*13cm/8.26*7.67*5.12inPackage Weight: 700g/24.69ozPackage List:1 * Stove Fan