Designed for use on freestanding wood stoves with a surface temperature between 230F—650F, thisquiet fan is an economical way to move air throughout your living space. It's perfect for those living off the grid or looking to increase the efficiency of their stove and use less fuel. It creates its own electricity and pushes up to 100 cubic feet per minute (cfm). No assembly required. Two-year warranty.Airflow: 100cfmPower supply: Thermoelectric moduleDimensions: 3"L x 5 1/2"W x 8 1/2"H