ModelB5862FU02254HK566Features1.This stove fan is powered by transforming heat into energy, without using any battery or electricity.2.The range of working temperature is about: 140F / 60C~662F / 350C, higher the temperature, faster it starts to spin. Attention: the temperature can not be over 662F when using the stove fan.3.Can circulate heat throughtout the room.4.This stove fan is silent and quiet.SpecificationsCFM: 180-210Speed: 1100rpmBlade number: 5Noise: 25dBStart Temperature: 140F / 60CWorking Temprature Range: 140F / 60C~662F / 350CMaterial: Anodizing AluminumOverall Size: 8.8 x 6.8(Height*Width)Color: BlackPackage includes:1x 5 Blades Heater Stove FanThis is a fan that uses thermoelectric power generation as an energy source to circulate the hot air produced by a wood burning fireplace. The fan has a thermoelectric module that acts as a small generator to drive the fan's motor. When this generator module experiences a heat difference between the top and bottom surfaces, it generates an electric current. The bottom of the fan heats the bottom surface of the module, while the top of the module is kept cool by the fan's top heatsink.There is no need for any batteries or power supply!In other words, just place it on top of the burning stove and it will absorb the heat energy to drive the fan rotation, thus blowing the hot air above the wood burning fireplace directly to the living area, increasing the air circulation in the room and improving the heating efficiency of the fireplaceThe rotation speed of the fan changes depending on the temperature of the fireplace, the higher the furnace temperature, the faster the rotation speed, when the furnace temperature is so low that the fire goes out, the rotation speed slows down until it stops rotating.Product advantages.1. saving fuel needs, the fan distributes heat from the stove to provide better fuel efficiency.2. self-generating - no plugs - no batteries.3Quiet operation.4Self-starting, speed adjustment and stopping.5Simple and stylish design.1Place the stove fan on a smooth flat surface on top of the stove, near the side or back of the chimney.2The stove fan is designed for use on a freestanding stove with a chamber surface temperature between 65C - C 350C). Temperatures above this range may damage the fan and generator set and void your warranty.