DuraVent DuraLiner Oval to Oval Heavy Duty Flex Pipe: thicker oval flex for a tight damper opening
The DuraVent DuraLiner Oval to Oval Heavy Duty Flex Pipe is a flexible stainless steel section for a bend inside a masonry chimney. Its four layers of thicker steel suit a narrow opening where the pipe can take some knocks during installation. Both ends are oval and already formed for rivet connections. This section bends past the smoke shelf above the fireplace and through the old damper opening. The damper, the flap that closes the chimney passage, comes out first. DuraLiner is DuraVent’s factory insulated double wall pipe for relining a masonry chimney that vents a wood, pellet, coal, oil, or gas appliance.
This part connects oval rigid liner above to an oval connector or oval tee below. It comes only in a 6 inch size. Choose a length of 36 or 60 inches on this page. Any portion above the first chimney flue tile needs the DuraLiner insulation kit. DuraVent recommends insulating all flex sections for draft and safety. Need a lighter version? See the DuraVent DuraLiner Oval to Oval Flex Pipe. The DuraVent DuraLiner Oval to Oval Heavy Duty Flex Pipe ships free from My Cozy Outdoors with No Sales Tax (except WY) and the full manufacturer warranty.

















































