Additional InformationcUL/US Listed, ULc S635 Listed, UL 1777 Listed
Marketing InformationAn economical venting system used for relining masonry chimney for natural gas or liquid propane category I, draft hood equipped appliances and appliances tested and listed to use type B gas vent for a wide range of applications, including, natural gas fireplaces, gas fired furnaces, boilers, water heaters and wall or space heating applications. Protects the masonry chimney from damaging effects of flue product condensation.