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Increase from a smaller appliance flue to outlet to a larger diameter chimney or stovepipe with the DVL double-wall black stovepipe
Features die-formed fittings and adjustable lengths, so you don't need to cut or crimp the ends
Vents smoke and exhaust fumes outside from wood, oil, coal, and gas fuels, keeping your safety and convenience at top of your mind
With 0.20-inch steel construction with a lock-seamed design offers drip-free operation for use winter after winter
Designed with a 9-inch length and a 6-inch interior diameter, this extension offers a snug fit on most wood stoves; Requires 18-inch clearance to combustibles

While cozying up by the wood-burning stove, stay warm and safe thanks to the DVL Double-Wall Black Stovepipe from DuraVent. This DVL Increaser is used to increase from a smaller appliance flue to outlet to a larger diameter chimney or stovepipe. Constructed from sleek painted steel, this double-wall interior pipe connects wood stoves to your chimney, so your home stays toasty and smoke-free all season long. Great for venting exhaust caused by burning wood, oil, coal, and gas fuels, this adjustable connector features a lock-seamed design to run without drips or leaks, no sealant required. For quick and simple installation, the entire DVL line features pipes with die-formed end fittings and adjustable lengths, so there's no need for cutting or crimping. With an adjustable installed length of 9 inches and a 6-inch interior diameter, this increaser offers a snug fit on most wood stoves. An 18-inch clearance to combustibles is required for safe operation. Keep your family safe from the fumes every winter with the help of the DuraBlack Single-Wall Black Stovepipe by DuraVent.