Applications - Simpson Dura-Vents Type B Gas Vent system is for use with natural gas or liquid propane category I and 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, gasfired furnaces, boilers, water heaters, and wall or space heating applications.
Materials and Construction - Round Type B Gas Vent 3 - 8 and oval 4 - 6: Aluminum .012 inner wall, galvanized .018 outer wall. Round Type B Gas Vent 10 - 16: Aluminum .016 inner wall, galvanized .021 outer wall. Round Type B Gas Vent 18 - 30: aluminum .020 inner wall, galvanized .021 outer wall. 3-16 diameters feature twist-lock fittings, screws required for 18 and larger diameters.
Clearances - 1 clearance to combustibles in single and multi-family dwellings.
Listings - UL Listed to UL 441 and UL 1777 (MH6357). ULC Listed to ULC S605 (CMH1276 & CMH1407).
This section contains components used above the roof such as flashing, storm collars, termination caps, and chimney caps for Duravent Type B Vent Pipe.
This section contains components used in 2nd floors and attic space such as insulation shields, firestops, and radiation shields for Attic Space - 2nd Floor
In the unlikely event that you find a better price on any of our Chimney Pipe
or Chimney Liners, we will
match that price and beat it by 10% of the difference. (details
)
TYPE
B VENT PIPE
Type B Gas Vent
system is for use with category I and draft hood equipped gas appliances, and
appliances tested and listed to use Type B Gas Vent for a wide range of
applications, including: natural gas fireplaces, gasfired furnaces, boilers,
water heaters, and wall or space heating applications.