Environmentally friendly - powered by heat, no batteries or electricity needed. To make the most of the heat from your stove, fireplace fans are designed to distribute heat throughout the room. Reasonable heat circulation, no need to move to the fireplace, no longer bothered by the cold! Automatic silent operation -- When the fireplace temperature reaches 40C, the fan starts to rotate automatically. 80-345C is the normal operating temperature. The higher the temperature, the faster the fan spins and the better its ability to diffuse heat! It is worth noting that the whole process is quiet (less than 25db), even if you rest nearby, it will have no effect! High efficiency - The large tooth-shaped heat sink of saw helps dissipate heat more efficiently. When the temperature reaches around 40C, the blades rotate and the heat radiates directly into the environment without moving up and down. Stir heat to every corner of the room faster and more efficiently! Ergonomic Design - Hard material base can withstand temperatures up to 500C/932F, no need to worry about mixing during operation. The rear is equipped with a baffle to prevent direct exposure of the PCB, safe and beautiful! The small handle of the fan is easy to carry without any effort! BEST OF WINTER - Winter means the arrival of cold weather. If no heater is installed, our wood stove fans can easily distribute the heat from the stove throughout the room. Bring warmth to every corner of your life, no longer trapped by the cold! The best for winter!