DuraVent Model BV 7 and 8 Inch Round Rigid Pipe: straight sections for larger gas appliance outlets
The DuraVent Model BV 7 and 8 Inch Round Rigid Pipe is a straight section of double wall gas vent. These larger sizes form the run from bigger boilers, furnaces, and water heaters toward the roof. Model BV is DuraVent’s Type B gas vent, the double wall pipe that carries the exhaust from a gas furnace, boiler, or water heater out of the house. The size measures the inside diameter and matches the appliance outlet. Fewer fittings are available for these sizes than for 3 to 6 inch pipe, so check that your planned run has matching parts.
Choose 7 or 8 inch, the installation country, and a length from 6 to 60 inches. The Canada version has a galvalume outer wall and comes in most lengths. Each joint uses up 1 1/2 inches of length. Use whole sections without cutting. Keep 1 inch of open air around the vent, clear of framing, drywall, roofing, wires, and insulation. Runs through occupied rooms need an enclosure that preserves that space. Need a smaller diameter? See the DuraVent Model BV Round Rigid Pipe. The DuraVent Model BV 7 and 8 Inch Round Rigid Pipe ships free from My Cozy Outdoors with No Sales Tax (except WY) and the full manufacturer warranty.
Details
SKU: 7BV06 | 7BV12 | 7BV12C | 7BV18 | 7BV18C | 7BV24 | 7BV24C | 7BV36 | 7BV36C | 7BV48 | 7BV48C | 7BV60 | 7BV60C
SKU: 8BV06 | 8BV12 | 8BV18 | 8BV18C | 8BV24 | 8BV24C | 8BV36 | 8BV36C | 8BV48 | 8BV48C | 8BV60 | 8BV60C
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, in Canada, the lengths have a galvalume .018″ outer wall. The 3″ – 8″ Round gas vent features DuraLock® and DuraTab® . The Oval gas vent features the button lock.
Round Type B Gas Vent 10″ – 18″: Aluminum .014″ inner wall, galvanized .018″ outer wall. DuraLock® feature for 10″ and larger diameters.
Round Type B Gas Vent 20″ – 30″: aluminum .023″ inner wall, galvanized .018″ outer wall. DuraLock® feature for 10″ and larger diameters.
Clearances
Clearances to combustible materials in single and multi-family dwellings:
- 1″ Clearance – USA – 3″ to 30″
- 1″ Clearance – Canada – 3″ to 24″
- 2″ Clearance – Canada – 26″ to 30″
Annular insulating air space
- 3″ – 8″ Round Vent: 1/4″ air space
- 4″ – 6″ Oval Vent: 1/4″ air space
- 10″ – 30″ Round Vent: 1/2″ air space
Diameters
- 3″- 30″ Round Diameter.
- 4″, 5″ and 6″ Oval (USA only)
Listings
UL Listed to UL 441 and CAN/ULC-S605 (MH2848 and MH17667).