[Eco-friendly] - The wood stove fan will help reduce the fuel consumption and make the room warmer quickly.Spread heat around room and increase temperature, improve warm air circulation results in greater comfort and reduce wood consumption from your stove. [No Power Required] - Fireplace fans powered by heat.The wood pellet fan converts heat into electricity by means of a heat-conducting plate at the bottom to achieve rotation.No fire hazards. And the fireplace fan automatically adjusts its rotation speed with the temperature of the surface of the stove. [Very Silent] - The only moving part is the blade assembly.The noise of the silent heat powered wood stove fan is less than 25db, you don't even know where the fan is, but you still feel warm.You can enjoy the warm air in a quiet and comfortable environment.(Please do not Press it directly with your hands when running work.) [Upgraded Blade] - Heat powered stove fans are widely used in wood-burning stoves, gas stoves, pellet stoves, etc. The recommended surface temperature is between 122F-644F (50C-340C).No assembly is required, just place the fireplace fan on top of the furnace and the heat fan will spin as the temperature rises. [NOTE] - This unique stove fan is designed to be placed on your wood stove to make efficient air circulate indoors quickly and efficiently.(Starts when the surface temperature at the top of the fireplace reaches about 50C /122F)It does not provide strong wind power like ordinary fans.If the max temperature on your stove top is even below 100C / 212F, DO NOT buy, the fan will can't works efficiently. size:18x14x19cm Material:Alumina colour:Black Package Contents: 1 x Fireplace fan Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.