Cordless heat-powered stove fan for use on freestanding stoves. An easy and effective way to increase the heat generated by a multi-fuel or wood-burning stove. To use, simply place on top of your stove, and the blade will automatically spin, eliminating the need for electrical power. The higher the heat, the faster the blade will spin. By increasing the amount of heat generated, eco-stove fans can significantly reduce fuel consumption, with no operating costs or noise. Technical Specification: Maximum Airflow: 100CFM Dimensions: Height: 213mm / 8.39in Width: 133mm / 5.24in