Principle of Operation - A hot-fed stove fan is designed to circulate the hot air created by a wood / charcoal or pellet stove that operates at normal surface temperatures between 60 C and 350 C C. Quiet without noise - You don't even know where the stove fan is, but feel the heat You will appreciate the warm air in a calm and comfortable environment. Energy saving - the thermoelectric module serves as a small generator to power the fan motor. The circulation of hot air improved and ensures greater comfort, while reducing the wood consumption of the stove. Space saving - the stove fan can be attached to the fireplace Wood pipe / wood stove / fireplace, it is stable on an inclined surface and does not take up more space. Product description Specification: Working temperature: 60-350 C Speed: 1100rpm Color: black Material: aluminum alloy Noise: d 25dB Dimensions: 5.38 x 7.17 x 4.98 inches (13.5 x 18 x 12.5 cm) Blade diameter: 7.17 inch (18 cm) The size range of the clamps: 5-6 inches (12-15 cm) Type: 4 blades + Linked type The package includes: 1x 4-blade stove fan Warning: 1.Never handle the base of the stove fan, do not place it on an unprotected hot surface. 2.To move or carry the ventilator, always use the extendable handle when wearing gloves. Please keep the fan away from small children when using it 3. The appropriate temperature is 60-350 C. Temperatures above this range may damage the fan and the generator.