DuraVent Model BV Extended Draft Hood Connector: a little more reach above the appliance
The DuraVent Model BV Extended Draft Hood Connector is a fitting that joins the appliance’s draft hood, at its exhaust outlet, to the first vent section. It is 5 inches long rather than 4 1/2 inches, giving you another half inch of reach. That is the only difference DuraVent identifies from the standard connector. This is a 4 inch fitting. It screws onto the draft hood and can also accept single wall pipe. 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.
At the Model BV connection, push the ends together until fully seated, then press the DuraTab down with your thumb. This tab secures the DuraLock joint in place of a screw. Plan for 1 inch of open air around the vent wherever it runs near materials that can burn. Keep wires and insulation out of that space too. Need the standard length in 3 to 8 inch sizes? See the DuraVent Model BV Draft Hood Connector. The DuraVent Model BV Extended Draft Hood Connector ships free from My Cozy Outdoors with No Sales Tax (except WY) and the full manufacturer warranty.
Details
SKU: 4BVCE
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).