AD-1 Auto Draft Stove Blower Model. 13 x 11 x 10 inches. Adjustable RPM from 1200 to 1600. Mount at least 18in. Away from any wood surface. Unit works with single wall stove pipe only. Not for use with vent-free applications. The Auto-Draft can be installed on any wood or coal burning stove pipe 5″ to 8″ in diameter. It is designed to solve draft problems without increasing the height or diameter of the chimney. With the Auto-Draft your hard starting stove draws immediately. No smoky back up–even with moist or hard to ignite types of wood. Once the fire is burning, adjust the variable speed control knob on the electrical box to achieve the maximum efficiency of your stove. The Auto-Draft provides for total utilization of your wood, leaving only a fine ash residue in most cases. We offer the best prices around on high quality products. Our E-store includes media such as books, movies, music and games while offering electronics, toys, sporting apparel, clothing, tools, general home, garden items and more. We are always working hard to ensure your package arrives as soon as possible. We do not accept P. Please provide a physical address. We try our very best to make sure every customer is completely satisfied. If there’s a problem, message us! We’re happy to help.