Stove Fan Wood Stove Fans Fireplace Fan Heat Powered Fan With 6 Blade Features: Improved hot circulation can bring greater comfort, and the use of stove wood is reduced by 28%. 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. 70°C（158°F）-345°C（653°F）working temperature,the maximum temperature must 345°C（653°F）: The wood stove fan spins when the temperature is reached 70°C（158°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. Specification: Material: Aluminum Product weight: about 700g Product size: length 17.5cm width: 9cm height: 20.5cm Operating speed: 1360RPM (Max) AirFlow：80-170CFM Quiet, noise is less than 45dB Starting temperature: 70°C（158°F） Normal temperature: 70-345°C Maximum withstand temperature: 345°C（653°F） Product include: 1 × Stove Fan