Description
Used to protect combustible materials where pipe passes through a ceiling or wall. Use at every ceiling level where Square Firestop Support is not used. 3” - 6” style shown in left photo. 7” - 12” style shown in right photo.
Additional B-Vent Info:
DuraVent's Type B Gas Vent system features the innovative DuraLock technology, ensuring a secure connection. With alignment indicators, you can easily see the parts line up, feel the firm connection as the ends grip together, and hear the distinct snap when it locks in place. Designed to withstand the tough conditions of job sites, the inner wall is recessed to prevent damage during handling. Type B Gas Vent is engineered for quick heat-up and remains hot during appliance operation, minimizing condensation in both the appliance and vent system. Available in lengths from 6 to 60 inches, the system includes a wide range of adjustable and rigid fittings. Note that Type B gas vents are not suitable for use with wood-burning or coal applications, industrial ovens, exhaust ranges and hoods, grease or pollution ducting, or as free-standing exhaust vents for high-temperature environments.
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).
Technical Specifications
View AllCloseAdditional Product Info
• Type B Gas Vent Instructions (PDF, 3.7MB)
• DuraConnect Installation Instructions (PDF, 950KB)
Sales Sheets:
• Type B Gas Vent Specification Sheet (PDF, 1.5MB)
Catalogs:
• Type B Gas Vent Catalog Section (PDF, 3.4MB)
• DuraVent All Products Catalog (PDF, 47.4MB)
Bulletins:
• Type B gas Vent Oval Spacer Kits (PDF, 218KB)
• Type B Gas Vent Adapter Ecco Approval (PDF, 139KB)
• Universal B Vent To Aluminum Flex Adapters (PDF, 153KB)
