Heat Powered Fan - no batteries or electricity required. This VODA wood stove fan is driven by the heat of your stovetop, so its working efficiency may be verious at different temperatures of your stove. The heat powered fan allows you to make full use of heat from your wood burning stoves. | Promote Hot Air Diffusion - A wood stove or a fireplace is a great way to heat up any room, but sometimes it can overheat at certain areas while leaving others freezing cold. A thermo fan can help circulate warm air evenly throughout the room to stay warm. Efficiently circulates warm air throughout the room. | Less consumption, more efficiency - The wood burning fan FULLY utilizes the heat from your wood stove and then disperses it to your whole room, resulting in 28% less wood consumption and saving your bill greatly. You can enjoy warmth in your room with less cost, increasing your comfort. | Innovative and durable design - This fireplace fan is made of heavy duty anodized aluminum, no rust and sturdy enough to last longer. With the overheat protection device at the bottom, it will gently lift the front of the fan to protect the TEG and motor when the surface temperature gets around 482°F, then recover to normal as the surface temperature decreases. | Silent operation - VODA heat powered stove fan is not only efficient but also very silent, less than 25dB. The blades move smoothly without making any noise while promoting the optimal distribution of the heat. You will only feel a breeze of warm air that keeps you cozy and comfy! | Can Be Used with Many Stoves- The fireplace fan will work automatically when it gets around 80°C/ 176°F, so stoves with a flat surface that can get hot enough to drive the fan will be applicable, including wood, gas and oil stoves. The hotter the stovetop is, the faster the stove fan spins.