Features: The Latest Design-Upgrade Heat Powered Stove FanNo Batteries or Electricity Required!The heat powered stove fan rotates by using the heat on the surface of the stove and automatically adjusts the speed according to the surface temperature of the stove.Large Airflow,Less Consumption and More Efficiency make the room warmer quickly. Wood Stove Fan Whisper QuietThe only moving part is the blade of wood stove fan assembly.Silent running, sa y goodbye to the terrible noise .You don't even know this fan is there,but you feel warm!You will enjoy the warm air in a quiet and comfortable environment. Fireplace Fan The Best Quality MaterialThe fireplace fan is made of high-strength aluminum alloy.The surface of stove fan is fine and neat.It is no deformation and no discoloration after long time working under high temperature. Energy Saving and Environmental ProtectionThe heat powered stove fan is designed to circulate the warm air created by a wood / coal or pellet burning.Make full use of the heat from your wood stove and quickly disperse it into your room.The room will heat up faster.It continues to circulate hot air to keep the room warm all the time.Less Consumption and More Efficiency! Specifications: Cfm: 180-220 Material: aluminum Working temperature: 50-350C AirFlow: 180-200CFM (cubic feet per minute) Noise: