Feature: A variety of styles can be selected, a variety of blades can be selected 1. 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: 180-220 7 Blades Speed: 1100rpm Dimension195*165*105mm/7.7*6.5*4.1inch Noise: 25db Initial temperature: 50-350 Operating temperature range: 140F / 60C~662F / 350C Material: Boron Aluminum Color: Black Szie: 165x05x195mm(6.5x4.1x7.7inch) The package includes: 1x Stove fan 1x thermometer Tips: 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