The DuraTech 7 Class A Chimney Pipe Chimney Cap is designed for appliances that are tested and listed for is used with a 2100° F HT chimney system, such as wood stoves, fireplaces, furnaces, boilers, ranges, water heaters, or other appliances fueled by wood, oil, coal, or gas.Comes with Spark Arrestor ScreenCollection: DuraTech Fuel Type: Coal, Gas, Oil, Wood Height: 6-1 2 Inner Diameter: 7 Material: Stainless Steel Outer Diameter: 9 Pipe Class: Class A Pipe Shape: Round Style: Functional Vent Construction: Double Wall Weight: 5.1 Width: 15