6 Blade Mini Stove Fan/Slient Fan for Heat Circulation/Wood Burner Fan/Eco Fire Fan Wood Burner for Wood Burner/Log Burner/Fireplace Thermal power: Without batteries or electricity, it converts the heat from the fireplace or stove into electrical energy. The unique design of the blade assembly can keep the log burner fan quiet during the fastest operation. 6 blades wood burner fan: the higher the temperature, the faster the blades rotate, a larger volume of air, so it can radiate the heat of the fireplace more effectively and quickly raise the temperature of the room. Operating Temperature: The fan for wood burning stove recommended work surface temperature is 50 C / 122 F to 350 C / 662 F [with thermometer]. Customer Warranty:If this woodburner stove fans has problem during using time,please don't worried,we have you covered with our 365-day warranty. Easy to use: No installation required, just place the wood stove fan on the smooth and even surface of the hob, near the side or back of the oven pipe.