DuraVen 6 x 40 in. Wood Burning Telescoping Chimney Stove Pipe in Black. DVL double-wall stovepipe completes the venting system when used with one of DuraVents chimney products, such as DuraTech, DuraPlus, or DuraPlus HTC. DVLs double-wall, air-insulated design reduces clearances to combustibles from 18 in. The closest clearance to a wall of any connector […]