How to use your heat powered stove fan?1.Be sure to put the stove fan on a smooth fat surface of your stove top near the side or back of the stove2.The hotter the stove is ,the more air the circulates3.The stove fan is designed for usage on freestanding stoves with a normal surface temperature of between 70 degrees and 345 degrees celsius,Remove the fan from the stove if the temperature exceeds 345C4.Never handle the base if the stove fan , do not set the stove fan down on an unprotected surface when hot , to move or carry the fan , always use the extendable handleHow does the fireplace fans work?1. No battery or electricity required: The thermal wood stove fan generates energy by converting the heat generated by the stove into electric energy, and the power generation unit converts the heat energy into kinetic energy to drive the motor, and then the blades rotate.2. When the furnace temperature reaches 122F, the fan starts to spin. The hotter the fan base, the faster the fan rotates, and the more air the fan enters the room. As the fireplace cools, it slows down and stops.DISPERSING & WARMThis fan is powered by the heat produced by your fireplace or wood burning stove; the blades spin faster as the fire gets hotter, dispersing the heat throughout the roomSTOKING INDICATORThe blades will slow as the fire goes down, giving you a built-in indicator of when to stoke and add more wood.RIGHT LOCATIONPlace the stove fan on a smooth and flat surface on the top of the stove, near the side or back of the stove. The stove fan needs to be placed at least 4" away from the stove.QUIETThe blades are the only moving parts on this stove fan so unlike noisy forced air fans, it is whisper quiet.Specifications:Overall height : 19.5cmFan blade diameter : 17.5cmN. W : 750gRunning temperature:70-345CCFM : 80-170NOLSE :