Features:AUTO START: Upgraded technology for faster-speeds and greater airflow. The thermodynamic stove fan is designed to circulate warm airs produced by wood/coal or pellet-burning stove with normal surfaces temperatures of 50C to 350C .SAFETY DESIGN: The hearth support is made of anodized aluminum, which does not warp or discolor even after long hours of work at high temperatures.No batteries or electricity required, The stove fan creates its own electricity from the heat produced by your stove.The heat powered stove fan: Increases the efficiency of your freestanding stove oven or wood/ log-burner to generate warmth economically.Saving and environmental protection: The heat powered stove fan is designed to circulate the warm airscreated by a wood / coal or pellet-burning.FULLY utilize the heat from your wood stove and disperse it to your room, and make the room warmer quickly,Less Consumption ,More Efficiency--Reduce the fuel consumption.Notice:1.Actual color may be slightly different from the image due to different light effect2.Please allow 1-3cm deviation due to manual measurementDescription:Operating temperature range: 50 degrees C to 350 degrees CAirs volume unit: 150-180Size: Length: 110MM Height: 145MMPower: Thermoelectric module