Feature:The stove fan is driven by the heat generated by the fireplace or wood-burning stove and conducts to the fan base to drive the blades. The temperature of the fireplace affects the speed of the fan,No electricity required.it is the perfect way to help heat your house on cold winter nights!Say good-bye to the loud noise of electric forced-air fans! You won't even know the fan is there, but you'll feel warm all the time.This quiet and low maintenance fan will help keep your home warm and cozy without driving up your electric bill!the upgraded 6 blades will circulate more warm air throughout your house.Highly effective at distributing heat throughout the entire house nicely.never need to turn it on or off.The fan base and blade are made from anodized aluminum which will not rust or corrode. This fan is durable for long term use and can be wiped clean with a damp cloth.SpecificationMaterial: aluminum alloy Number of blades: 6Blade diameter: 180mmAir volume CFM: 180-210Motor speed: 800-1100rpmNoise: ≦35dbColour: BlackStarting temperature: 55℃-75℃The best working temperature: 80℃-250℃Maximum temperature: 350℃size:Height (not including hand-made): 190mmWidth: 180mmLength: 100mmPackage List:1 x Fireplace fanNote:Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!