4-Blade Heat Powered Fireplace Fan - Silent Stove Fan for Wood Burning Stoves, Log Burners & Fireplaces | Energy Efficient Eco-Friendly Blower for Home Heating | Perfect for Living Rooms, Cabins & Winter Warmth (Black)

Specification：Material: AluminumSize:20×18cmAir flow: 370CFM(Max)Running speed: 1360RPM(Max）Silent operation, the noise less than 25dBProduct include:1 × Stove Fan

Heat powered: Heat powered wood stove fans generate power by converting the heat from stove into electricity, electricity generating units convert the heat energy into energy to drive the motor, then the blades spin.No batteries or electricity required, eco-friendly.

Large air volume: Diffuse warm air throughout the whole room. Just place the stove fan on a smooth flat surface 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 surface hot.

50°C(122°F)-340°C（644°F) working temperature: The wood stove fan spins when the temperature is reached 50°C(122°F).The hotter the base of the fan gets, the faster the fan turns, and the more air the fan circulates into the room. It will slow down and stop as the stove cools.

Aluminum material: Stove fan is made from anodized aluminum, which will not 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 rise to protect the fan from damage.