Wood Stove Fan Heat Powered, 6 Blades Fireplace Fans for Home Wood Burning Stove/Log Burner/Pellet, Thermal Eco Fan Friendly Circulation with Magnetic Thermometer,Outdoor/Indoor UseProduct DescriptionPower Supply:Heat Powered Work temperature:158 ~653°F Below 104°F【Heat-Powered Eco-Friendly】 This 6-blade log burner fan is optimal for each domestic with a wood stove. No batteries or electrical energy are required, but using only the warmth from the stove, the fan turns and effectively distributes the warmth round the room and maximizing airflow for more practical use of wood. 【Operating temperature】 The working temperature of this fan is 55-350°C, the fan begins to spin routinely around 55°C, and because the furnace temperature rises, the fan blades spin faster. Note that working fees will range based on the temperature of your stove. It can't be used when the temperature exceeds 350°C (662°F), otherwise, it is going to break the furnace fan motor. 【Overheat Protection】There is a safety gadget on the bottom of the fan, if the operating temperature exceeds the specified range, the fan could also be lifted slightly to forestall hot temperature from damaging the motor. As the temperature decreases, the followers will automatically return to normal. 【Unique Design】 The newly designed blades have larger air number and less noise, making a quiet and comfortable environment. 【No Installation Required】You simply position the small wood range fan on the smooth and flat surface of the stovetop, close to the facet or back of the variety tube, the fan will automatically rotate as the temperature rises, the hotter the stove, the additional the variety fan spins. Please maintain away from using the stove fan at excessive temperatures continually to assure an extended lifetime List1 x Fan