Duravent
Duravent B-Vent 90 Degree Elbow
Duravent B-Vent 90 Degree Elbow
The Duravent Model BV 90 degree elbow turns a round Type B gas vent run between horizontal and vertical, or offsets it around an obstruction. The 6" and 8" elbows are adjustable and rotate 360 degrees for alignment. The 10" elbow, part number 10BVL90-1, is a fixed 90 with the large diameter DuraTab joint.
Details
| Part numbers | 6BVL90, 8BVL90, 10BVL90-1 |
|---|---|
| 6" and 8" | Adjustable, rotates 360 degrees |
| 10" | Fixed 90 degrees, not adjustable |
| Use | Changes between horizontal and vertical runs, or offsets around obstructions |
| Lateral runs | Support at least every 5 feet, per the instructions |
| Listed for | Listed natural gas or LP Category I gas appliances with draft hoods, and appliances listed for Type B gas vent, with flue gases no hotter than 470°F |
| Not for | Category II, III or IV gas appliances, pressure-tight or liquid-tight vent systems, wood, pellet, coal or oil burning appliances, high-temperature exhaust |
| Clearance | 1" to combustibles (USA, 3" to 30" round) |
| Certification | UL 441 and CAN/ULC-S605 |
| Brand | Duravent |
Questions people ask us
Is the 10" elbow adjustable?
No. Duravent lists the 10BVL90-1 as a fixed 90 degree elbow. The 6" and 8" elbows adjust and rotate 360 degrees.
How should a horizontal run be supported?
Duravent's instructions call for lateral runs to be supported at least every 5 feet. The appliance manual and codes set how long the horizontal run may be.
Can I use this on a wood stove, pellet stove or oil furnace?
No. Duravent lists Model BV Type B gas vent for listed natural gas or LP Category I gas appliances with draft hoods and appliances listed for Type B vent, with flue gases up to 470°F. Its catalog warns that oil or wood burning appliances can damage the vent, and it is not for Category II, III or IV gas appliances. Wood and pellet appliances need a chimney or vent system listed for them.
What does the -1 at the end of the 10" and 12" part numbers mean?
In Duravent's current Model BV catalog the 10" and 12" parts carry a -1 suffix, for example 10BV12-1, and join with the DuraTab method: align the notches, slide together and press in the tab. Duravent's earlier catalog listed the same sizes without the suffix and with a DuraLock snap-in joint. Duravent's instructions do not cover mixing the two, so ask us before joining a -1 part to older 10" or 12" pipe.
Who should install it?
Duravent warrants the vent fully only when a professional installer puts it in. A licensed gas professional should install the system to Duravent's instructions, NFPA 54 (the National Fuel Gas Code) and local codes. The appliance manufacturer's manual decides which venting is approved and the vent size and layout, so send us the appliance model and we will check.
Goes with this
Manuals and warranty
Warranty terms come from Duravent and depend on the product. Read the manual and the warranty for your model before you order.
Our warranty library· Model BV Type B gas vent catalog (PDF)· Model BV installation instructions (PDF)Ask us before you order