How to use your heat powered stove fan: Be sure to position the stove fan on the top of your stove, place it on a smooth flat surface, and near the side or back of the stove. The hotter the stove is, the more air the fan circulates. The stove fan is designed for usage on freestanding stoves with a normal surface temperature of between 176°F and 653°F. Remove the fan from the stove if the temperature exceeds 653°F. Never handle the base of 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 handle. Warm reminder: Placing fireplace fans on both sides of the top of the fireplace, can better improve the hot air circulation, save more fuel cost, and reduce the wood consumption of the stove.