1Blades fireplace fan accelerates air circulation and improves thermal efficiency, providing wider heat distribution. 2Fan widely used for wood burning stove, fireplace, ga-s stove. It can quickly raise the temperature of your room and make you feel warm in cold weather. 3No batterys or mains electricity required, the moelectric module acts as a small generator to powers the fanu0027s motor. 4The fan base and blade are made from anodized aluminum which is rust-proof, wear-resisting, with nice thermal conductivity. 5Recommended surface temperature is between 140F - 644F (60C - 340C). Features: Blades fireplace fan accelerates air circulation and improves thermal efficiency, providing wider heat distribution. Fan widely used for wood burning stove, fireplace, ga-s stove. It can quickly raise the temperature of your room and make you feel warm in cold weather. No batterys or mains electricity required, the moelectric module acts as a small generator to powers the fan's motor. The fan base and blade are made from anodized aluminum which is rust-proof, wear-resisting, with nice thermal conductivity. Recommended surface temperature is between 140F - 644F (60C - 340C). Specifications: Material: aluminum alloy Number of blade: 4, 5, 6 blades(optional) The bes-t working temperature: 140F - 644F (60C - 340C) Package Size: 210*185*135mm(4&5blades) 230*220*140mm(6 blades) Package Weight: 750g(4&5blades), 850g(6 blades) PackingList; 1*Stove Fan 1*Stove Fan