B-Vent Adjustable Gas Pipe

Type B Gas Vent Adjustable Pipe

Use to add length to a straight length of Type B Gas Vent. 12” adds 3” - 10” of length, 18” adds 10” - 16” of length. Requires a 2” overlap.

Applications
DuraVent’s Type B Gas Vent system. 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. Applications include: natural gas fireplaces, gas-fired 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 14” and
larger diameters.

Clearances
1” clearance to combustibles in single and multi-family dwellings.

Diameters
3”- 30” Round Diameter.
4”, 5”, and 6” Oval.

Listings
UL Listed to UL 441 and UL 1777 (MH6357).
ULC Listed to ULC S605 (CMH1276 & CMH1407).

Weight
1.3