1、No Batteries Needed: Heat powered fireplace fan requires no heat from batteries, saving 16% of costs and reducing emissions due to fuel, which is environmentally friendly and energy efficient. 2、Greater Air Volume: At lower fireplace temperatures, the stove fan has a higher speed, allowing for greater airflow to increase comfort faster. Faster start up and more airflow. 3、5 Blades and Quiet Operation: Heat powered fireplace fan has 5 blades and operates with little noise. There is no big blower noise like other fans. 4、Automatic Start: When the surface temperature of the fireplace reaches about 122℉ , the fan will automatically start. The operating temperature of the fan is 80℃‑350℃. 5、No Assembly Required: The fan does not need to be assembled and can be used directly. For those who are off the grid and want to improve their fireplace efficiency and use less fuel, for wood, gas, stove. Item Type: Stove Fan Material: Aluminum alloy Weight: Approx. 713g/25.15oz Specifications: Butterfly style LT386 1 Color: Black Blade: 5 Operating Temperature: 80℃-350℃ Air Volume: 180-220CFM Wind Speed: 1400RPM Noise: 25db Size: 105x75x190mm/4.13x2.95x7.48in 1 x Stove Fan 1 x English Instruction