Heat powered stove fanThis wood stove fan operates from the wood burning stove's heatno external power needed.Powered by thermoelectric technology. Start working at 212F, the stove top fan enhances room warmth, while lowers the fuel consumption of log burner. Quiet Operation<25dB: With a noise level below 25dB, this fire place fan quietly and efficiently distributes warm air throughout the room. Overheat ProtectionThe base of the woodstove fans heat powered has a built-in bimetal safety device, when the surface temperature exceeds 662F, the bimetal safety device will automatically lift the front of the fan, which can protect the motor when it encounters high temperature protected from damage. Optimal operating temperature is 122F~ 662F. Dual Motor FanWith 14 blades and dual motors, it excels market counterparts with 2 extra blades and 80% more power. Woodstove fan can distribute warm air evenly throughout the room to stay warm.Widely used in wood-burning stoves, gas stoves, fireplaces, and more. High-Quality & DurableMade from high-quality aluminum, our heater fan resists rust and conducts heat well. Package includes fan, magnetic thermometer, and mitts. Contact us with questions,we will be glad to help you within 24 hours.