An 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.
Materials and construction: single-wall 0.01 in aluminum (2-ply of 0.005 in)|Use with natural gas or liquid propane category I, draft hood equipped appliances, and appliances tested and listed to use Type B Gas Vent
DuraVent DuraFlex AL Chimney Liner, Flexible, 4 in Dia, 50 ft Length, Aluminum