Features: The heat powered stove fan can convert the heat from stove into electricity to make the blades spin. No batteries or electricity required, eco-friendly. The hotter the base of the fan gets, the faster the fan turns, and the more air the fan circulates into the room. It will slow down and stop as the stove cools. Dual heads and total 8 blades design, the stove fan can diffuse warm air throughout the whole room. Just place the stove fan on a smooth flat surface of your stove top, near the side or back of the stovepipe. The only moving part is the blades, quiet working and no noise generate. You will not even know this fan is there, but you will feel the warmth. Made of aluminum alloy material, durable and sturdy, will not rust or corrode when the fan is getting hot. With top handle for convenient carry. Specifications: Color: Black Material: Aluminum Alloy Blades: total 8pcs Temperature: max. 335 Item Size: 20.5 * 11 * 13.5cm/ 8.07 * 4.33 * 5.31in Note: Be careful of the rotating blades, and product will get hot, please allow time to cool before moving. Packing List: 1 * Stove Fan