DuraVent Model BV Pipe Collar: a trim ring for ceiling and wall openings
The DuraVent Model BV Pipe Collar is a trim ring that covers the edge of a ceiling or wall hole around the vent pipe. It slides over the pipe to make the opening look finished. It carries no pipe weight and provides no fire protection. 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. Choose a 3, 4, 5, 6, or 7 inch collar on this page to match your Model BV pipe. This is not the collar supplied with the bucket support.
The vent itself has an aluminum inner pipe and a galvanized steel outer pipe. Air between them helps keep the inside hot for draft, the upward flow of exhaust, while keeping the outside cool. The inner pipe attaches to the outer pipe at just one end, letting it grow and contract quietly as it heats and cools. Need a firestop at the ceiling? See the DuraVent Model BV Gas Vent Firestop Spacer ceiling plate. The DuraVent Model BV Pipe Collar ships free from My Cozy Outdoors with No Sales Tax (except WY) and the full manufacturer warranty.
Details
SKU: 3BVRS4 | 5BVRS6
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
Listings
UL Listed to UL 441 and CAN/ULC-S605 (MH2848 and MH17667).