DuraVent DuraLiner 6" x 36" Oval-To-Round Heavy Duty Stainless Steel Flex Pipe w41.5 9×12 is OK

9×12 is OK

Model SF6-T Clearance UL and ULC listed to 1777 standard

Innsbrook Clean Face Fireplace Insert

Equipped with factory installed high limit switches and thermoelectric safety valves

DuraVent DuraLiner 6" x 36" Oval-To-Round Heavy Duty Stainless Steel Flex Pipe w41.5 9×12 is OKDuraLiner ensures safe and efficient venting of heating appliances while protecting the masonry chimney from the damaging effects of flue gas. It is the only factory insulated product with zero zero clearance for high heat wood burning appliances. No need to uncoil flex, insulate a majority of the pipe, or protect the insulation when installing. A smooth inner means less creosote buildup. Installers reduce labor time by 50% or more with DuraLiner. No