Stove Fan Wood Stove Fans Fireplace Fan Heat Powered Fan With 4 Blade Product selling point: Heat powered: Heat powered wood stove fans power by converting the heat from stove into electricity, electricity generating units the heat energy into energy to drive the motor, then the blades.No batteries or electricity required,. Large volume: Diffuse warm throughout the whole room. Just place the stove fan on a flat of your stove top ,near the side or back of the stovepipe. Need to place stove fan at least 4" away from stovepipe. It will work when the stove hot. 80°C(176°F)-250°C（662°F) working temperature,the maximum temperature must 350°C (662°F): The wood stove fan spins when the temperature is reached 80°C(176°F).The hotter the base of the fan gets, the faster the fan turns, and the more the fan circulates into room. It will slow down and stop as the stove cools. Aluminum material: Stove fan is made from anodized aluminum, which will rust or corrode when the fan is getting hot. Protection functionThere is a iron sheet on the fan bottom, with the increasing of temperature, the iron sheet will to the fan from damage. Specification: Material: Aluminum Product weight: about 560g With packaging weight: 690g Product size: length 15cm width: 9cm height: 18cm flow: 370CFM(Max) Operating speed: 1360RPM (Max) Quiet, noise is less than 25dB Starting temperature: 50°C Optimal operating temperature: 80-250°C Maximum withstand temperature: 350°C Product include: 1 × Stove Fan