Just place the stove fan on a flat, smooth surfaces on the top of your stove, near the side or back of the stovepipe at least 4 inches from the stovepipe. Turns most efficiently when the temperature reaches about 65℃-250℃. Do not place the fan on a surfaces over 350℃ The fan uses upgraded technology, faster speed, and greater air volume without any noise. The size of this Heat Powered Stove Fan issmall in volume and fits narrow spaces. Idealfor all kinds of wood-burning stove, pellet stove, You can enjoy the warm air in a quiet environment This fan ismade from rust-proof anodized aluminum, wear-resisting, with good thermal conductivity Our stove fan composed of 7 can produce more warm air and improve the efficiency of the product, give you benefits. The stove fans start automatically when placed on top of a stove and adjust their speed with the stove temperature. As the stove burns down and cools, the fans automatically shut off This fan requires no batteries or external power, it ispowered by the heat produced by your or wood-burning stove; The heat of the stove top isconducted through the base of the fan and converted to electricity which the fan motor. This low-maintenance fan will help keep your home warm, Manufacturer: TSMORY