Heat-powered Fireplace Fan - No Plug-In - No batteries required - Converts the heat emitted from the woodstove to drive the woodstove fan, allowing warmth to spread throughout the room. A truly environmentally friendly and energy efficient device. Upgraded Power - S180 woodstove fan is made of anodized aluminum and has a thicker base for more efficient energy conversion, with 6 fan blades for 50% more warm air overall than a 4-blade woodstove fan. Space-saving Installation Solution - S180 fireplace fan base is placed on the surface of the fireplace chimney pipe. It is particularly suitable for fireplaces with insufficient top surface temperature, soapstone top surfaces and irregular top surfaces. At the same time, installing the fireplace fan on the fireplace chimney will save more space for you to heat other food on the fireplace in winter. Quiet(≤25dB) - You won't even feel the sound of the S180 woodstove fan when it's running. It is quieter than in the library. Reading next to the wood stove becomes a happy and relaxing weekend rest choice. AFTER-SALES GUARANTEE - If you have any problems after receiving this wood stove fan, we promise 2-year after-sales warranty protection. Buy it without worrying about product quality and customer service. Heat-powered Fireplace Fan - No Plug-In - No batteries required - Converts the heat emitted from the woodstove to drive the woodstove fan, allowing warmth to spread throughout the room. A truly environmentally friendly and energy efficient device.