Chimney has been filling the supply and accessory needs of over 8 000 chimney sweeps hearth retailers masons and contractors for over 25 years. Chimney has the privilege of serving over 80% of the chimney professionals in America.Founded by Robert Daniels Sooty Bob in 1978 Chimney has grown from a one-man operation to a national network of six warehouses and a manufacturing plant. From its headquarters in Fairfield Iowa Chimney plays a major role in providing for the Chimney industry. There are quite a few direct vent systems available for gas appliances but not many of them are also capable of venting modern corn and pellet-fueled devices. This Direct-Temp 14-Inch to 22-Inch Adjustable Black Telescopic Vent Pipe part of Selkirk s newest direct vent line can efficiently vent corn pellet and gas heating appliances. And that means you can be prepared for almost any type of installation just by stocking one type of pipe. Direct-Temp pipes aren t just convenient. Their economical dual construction allows the inner chamber to safely vent exhaust fumes while the outer section brings in fresh air for combustion making it possible for you to use one pipe where you used to need two. Obviously this speeds up installation but even more impressively the close proximity of the exhaust to the incoming air vent also enhances efficiency by providing preheated oxygen for combustion. Homeowners will also like the sleek black steel construction and lifetime . Selkirk s Direct-Temp 14-Inch to 22-Inch Adjustable Black Telescopic Vent Pipe like other products in this innovative line is durable easy to use and above all effective. That is why both customers and service professionals will find this pipe perfect for all of their gas corn and pellet venting needs. Efficiently vents gas corn and pellet direct vent appliances. Adjusts from 14 to 22 . Heavy-duty galvanized steel outer wall. 304 alloy stainless steel inner wall resists corrosion. Leak-proof silicone and fiberglass connections. Rivet and weld-free outer profile with sleek black finish. 1 clearance to combustibles. Gasket joints require no sealant. Lifetime . 4 inner diameter with 6 5/8 outer diameter.- SKU: CPPF5753