Feature:A variety of styles can be selected, a variety of blades can be selected1. This stove fan supplies power by converting the transition into energy without using any batteries or electricity.2. The working temperature range is approximately: 140F/60C~662F/350C, the higher the temperature, the faster it starts to rotate.Note: When using stove fans, the temperature cannot exceed 662F.3. Static electricity can be circulated in this room.4. This stove fan is quiet and quiet.Specification:cfm: 180-2207 Blades Speed: 1100rpmDimension195*165*105mm/7.7*6.5*4.1inchNoise: 25dbInitial temperature: 50-350Operating temperature range: 140F / 60C~662F / 350CMaterial: Boron AluminumColor: BlackSzie: 165x05x195mm(6.5x4.1x7.7inch)The package includes:1x Stove fan1x thermometerTips:1. The hot blast stove fan will not directly increase the temperature, but can only be a tool to accelerate the heat transfer of the chimney.2. Maintenance-free: Just clean it once and put some light oil on the blade shaft to adjust the rotation smoothly and quietly 3. Do not bring the base of the stovetop. Do not place the stove on a designated protected surface when it is hot.4. To move or carry the fan, always use the retractable handle when wearing gloves. Please keep your child away when using