Description This stove fan is powered by transforming heat into energy, without using any battery or electricity. So it is eco-friendly and low energy consumption. It is made from metal, which will not rust or corrode when the fan is getting hot. Can circulate heat throughout the room. Features - Color: Black.- Material: Aluminum alloy.- Size: 19.00x16.50x10.00cm/7.47x6.48x3.93inch.- Operating temperature range: 122 degrees F to 662 degrees F (50 degrees C to 350 degrees C).- Air volume unit: 180-220.- Power: Thermoelectric module.- Voltage: 5V.- Rotating speeds: 1300 (r/mim).- Generate power by converting the heat from your fireplace or wood-burning stove. No electricity needed.- Not so much air volume as electric fan, but enough to blow the hot air to the whole room.- Extremely quiet while working. Say good-bye to the loud noise of electric-forced fans You won& 39;t even know the fan is there, but you& 39;ll feel warm all the time.- Made of material, heat-resistant and durable to use. Start automatically when the temperature of the stove surface reaches around 122F.- Just dust it off occasionally, and put some light oil on the blades shaft to keep it smoothly and quietly Packing list: 1 x fan