DuraVent Model BV – Firestop / Support Plate
The 2-piece support plate is designed to provide strength and durability for supporting large size pipe sections. • Serves as a firestop. • Supports up to 30’ of pipe.
Overview Model BV
Our non-positional lock system on the Duravent® BV Gas Vent is the best lock system on the market today. The incorporation of the DuraTab® feature simply improves our lock system by adding flexibility and meeting market needs.
The BV line of Duravent round vent pipe and fittings is designed for use on approved gas appliances in residential and light commercial and industrial applications.
Details
SKU: 10BVFSP | 12BVFSP | 14BVFSP | 16BVFSP | 18BVFSP | 20BVFSP | 22BVFSP | 24BVFSP | 26BVFSP | 28BVFSP | 30BVFSP
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
- 10″- 30″
Listings
UL Listed to UL 441 and CAN/ULC-S605 (MH2848 and MH17667).
Instructions
- Model BV Type B Gas Vent Installation Instructions – Round and Oval – English
- Model BV Type B Gas Vent Installation Instructions – Round and Oval – French
- Universal Vent Cap Installation Instructions – English
- Universal Vent Cap Installation Instructions – French
Typical Installation
Small Diameter – Vertical Installations
| Item | Clearance - See Note 1 | Max Height | Outer Tube Ø | Materials | Locking Device | UL Listing |
|---|---|---|---|---|---|---|
| Type B Vent Round 3″-8″ (USA) | 1 inch | 100 feet | 1/2″ larger than ID | Inner – .012″ Aluminum Outer – .018″ Galvanized | DuraLock & DuraTab | MH2848 |
| Type B Vent Round 3″-8″ (CAN) | 1 inch | 100 feet | 1/2″ larger than ID | Inner – .012″ Aluminum Outer – .018″ Galvalume* | DuraLock & DuraTab | MH2848 |
| Round 10" to 18" - See note 2 | 1 inch | 100 feet | 1″ larger than ID | Inner – .014″ Aluminum Outer – .018″ Galvanized | DuraLock | MH2848 |
| Round 20″ to 30″ (USA) See note 2 | 1 inch | 100 feet | 1″ larger than ID | Inner – .023″ Aluminum Outer – .018″ Galvanized | DuraLock | MH2848 |
| Round 20″ to 24″ (CAN) See note 2 | 1 inch | 100 feet | 1″ larger than ID | Inner – .023″ Aluminum Outer – .018″ Galvanized | DuraLock | MH2848 |
| Round 26″ to 30″ (CAN) See note 2 | 2 inch | 100 feet | 1″ larger than ID | Inner – .023″ Aluminum Outer – .018″ Galvanized | DuraLock | MH2848 |
| Oval Type B Gas Vent 4″ and 5″ | 1 inch - See Note 5 | See Note 3 | 4": 2 1/2″ x 7 1/4″ or 5": 3 1/8″ x 10 7/8″ | Inner – .012″ Aluminum Outer – .018″ Galvanized | DuraLock | MH2848 |
| Oval Type B Vent 6″ | 1 inch - See Note 5 | See Note 3 | 3 1/4″ x 12″ | Inner – .012″ Aluminum Outer – .018″ Galvanized | DuraLock | MH2848 |
| DuraConnect I Flex 3″ and 4″ | 1 inch | See Note 4 | NA | .012″ Aluminum Flexible .018″ Galvalume Fittings | DuraLock & DuraTab | MH17667 |
| DuraConnect II Flex 3″ to 5″ | 1 inch | See Note 4 | 1/4″ larger than ID | .006″ 2 Ply Aluminum Flex .018″ Galvalume Fittings | DuraLock & DuraTab | MH17667 |
*In Canada, the outer tube material is galvalume for 3″ to 8″ pipe length. All other 3″ to 8″ fittings have a galvanized outer tube.
Notes: Gas Vent Specification Chart
- Clearance to combustibles is the air space between vent and combustibles.
- For maximum height refer to the appliance manufacturer installation instructions and the National Fuel Gas Code NFPA 54 or the Canadian Fuel Gas Installation Code CSA-149.1-00. For taller applications refer to Duravent Sizing Handbook.
- When oval is used on wall furnaces, minimum height required from bottom of furnace to cap is 12′, minimum 16″ stud space.
- Limited by sizing tables.
- BVO 4″ & 5″ oval can be installed in a 2″ x 4″or a 2″ x 6″ stud wall. BVO 6″ oval can be installed in a 2″ x 6″ stud wall.
Product Resources
Catalogs
Bulletins
- Adapting Model GV Lengths to Model BV & BV to GV Bulletin
- Connecting Model GV Rain Caps to Model BV Pipe Bulletin
- Universal Vent Cap Product Bulletin
Sales Sheets
- DuraConnect I Expandable Flex Connector – English Sales Sheet
- DuraConnect I Expandable Flex Connector – French Sales Sheet
- DuraConnect II Double Wall Flex Connector – English Sales Sheet
- DuraConnect II Double Wall Flex Connector – French Sales Sheet
- Locking Clip Vent Caps – French
- Locking Clip Vent Caps Sales Sheet
- Model BV Unit Heater Kits Sales Sheet – English
- Model BV Unit Heater Kits Sales Sheet – French
- Redesigned Faster Connection Method
- Universal Vent Cap Sales Sheet
Spec Sheets
Videos
Model BV Installation Video – English
https://youtu.be/4BZdKJimAG0?si=AGyqfm812eqg_0Mj
Universal Vent Cap
https://youtu.be/oRiAnyoFY50?si=IL3qoQb622fYxvHY
Duravent DuraCap
Shipping / Freight / Return Info
Same-Day / 24 hour shipping
Same-Day/24 hour shipping - If we have the product in stock, we can ship
same day if ordered before 12pm Monday - Friday (CST).
Freight Claims Policy
Please follow these very important steps when it comes to Freight Items that are damaged or missing
- Open and inspect the order while the delivery driver is present. If delivery driver does not provide sufficient time to do so, please notate the delivery receipt.
- By signing the delivery receipt without noting any damage or missing items, you confirm that your order arrived complete and in excellent condition.
- Record any damage or missing pieces directly on the delivery receipt.
- Do not discard damaged item(s) or any original packaging. For severe damage, write “Refused due to damage” on the delivery receipt and contact us immediately.
- Report any damage within two business days, including delivery details and photos showing the issue
- Damaged item(s) must be returned within 30 days. Failure to return them will result in a charge to the original payment method.
Return Merchandise Authorization Policy
Please follow these very important steps when Returning Items. Contact our team.
- Submit your return request within 30 days of delivery.
- You will receive an email within 1-2 business days confirming whether your return request has been approved or denied.
- Please also note that a 20% restocking fee may apply to approved returns
- If approved, you will receive an itemized Return Authorization, return shipping labels (if requested), and detailed instructions within 1–2 business days
- From the date this email is received, you will have 14 days to return the product.
- Once AF Distributors receives and inspects the returned item(s), your refund will be issued within 1–2 weeks
- Items returned outside of this process or time frame are not eligible for a refund.
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