Features:1. Heat Powered Fan: Wood stove fan doesn't require batteries or electricity. It rotates by using the heat on the surface of the stove and automatically adjusts the speed according to the surface temperature of the stove.diffusing warm air throughout the whole room perfectly, and continuously bringing warmth in cold winter.2. Silent Working: The heat powered fan produces less noise when working, less than 25db, so you don't even know where the fan is, but you still feel warm. No worry about the working fan disturb your families.3. Wide Application: The heat powered fan works with gas/ pellet/ wood/ log/ burner stove, which can effectively improve the circulation of warm air. It is an essential warm winter artifact for household.4. Environmental Protection: No battery or electricity required! The stove fan makes full use of the heat from your wood stove and quickly disperse it into your room.5.The working temperature range is approximately: 122F to 662 F (50C to 350C) the higher the temperature, the faster it starts to rotate. Specification:Product Name: Wood Stove FanMaterial: AluminumCFM: 150-180Blade number: 6Power: Thermoelectric moduleColor: BlackThe working temperature range is approximately: 122F to 662 F (50C to 350C) the higher the temperature, the faster it starts to rotate.Note: When using stove fans, the temperature cannot exceed 662F.Package Included:1 6 blade heater stove fanNote:1. Please allow a slight dimension difference due to different manual measurements.2. Due to the light and screen setting difference, the item's color may be slightly different from the pictures.3. Wish you a wonderful on-line shopping!