DuraVent DuraChimney II- 30° Elbow Kit 8” Diameter

$516.31

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DuraVent DuraChimney II 8 inch 30 Degree Elbow Kit: a bigger sidestep around rafters and joists

The DuraVent DuraChimney II 8 inch 30 Degree Elbow Kit is a pair of chimney bends with a support strap. This steeper kit takes the chimney farther sideways around an obstruction before returning it to vertical. Both elbows have a fixed 30 degree angle, the sharpest turn DuraChimney II permits. They cannot be combined into a steeper bend. The kit fits only 8 inch DuraChimney II pipe. Each pipe length between the elbows needs its own strap to hold it to the house framing, so the included strap may not be enough.

DuraChimney II is DuraVent’s air cooled chimney, a double wall pipe in 8 to 16 inch sizes for fireplaces that burn wood, oil, coal, or gas. The 8 inch parts form a separate family with twist lock joints. Plan for extra chimney height when using elbows. The cap must stand at least 3 feet above the roof exit and 2 feet above anything within 10 feet. Need a gentler turn? See the DuraVent DuraChimney II 8 inch 15 Degree Elbow Kit. The DuraVent DuraChimney II 8 inch 30 Degree Elbow Kit ships free from My Cozy Outdoors with No Sales Tax (except WY) and the full manufacturer warranty.

Details

SKU: 8DCA-E30K

Applications

DuraChimney II is a double-wall, air-cooled chimney system for use with masonry fireplaces which burn wood, oil, coal, or gas.

Materials and Construction

.016″ 430 stainless steel inner wall and .021″ galvanized steel outer wall. For stainless steel outer wall, contact Customer Service.

Unitized pipe sections. No field assembly of inners and outers required.

Clearances

2″ clearance to combustibles.

Shrouds

UL Listed with Duravent shroud specifications.

Diameters

8″

Listings

UL Listed to UL 103 and ULC S604 standards (MH7399).

Instructions

 

Typical Installation

Refer to our Typical Installation drawings to select the appropriate component parts for your installation.

DuraVent DuraChimney II

 

More Typical Installations

 

DuraVent More Typical Installations

Installation Key

1 Chimney Cap
2 Storm Collar
3 Chase Top Flashing
4 Roof Radiation Shield
5 Chimney Section
6 Elbow
7 Elbow Strap
8 Stabilizer
9 Firestop
10 Attic Insulation Shield
11 Anchor Plate
12 Anchor Plate with Damper
13 Supplementary Support
14 Wall Strap

DuraChimney planning installationPlanning Your Installation:

The following recommendations are a general guideline to assist in the layout and selection of the chimney components needed for your installation. Always follow Duravent Installation instructions enclosed with the cap or support box before installing your chimney system. Installation instructions can be viewed online at www. duravent.com, under catalogs and instructions.

  • Measure the diameter of the fireplace flue outlet. An improperly sized chimney results in poor draft and excessive creosote formation.
  • Select the chimney with the same size diameter as the fireplace flue outlet. Refer to the chimney sizing chart in the back of this catalog for masonry fireplaces.
  • Install the chimney in an enclosed chase.
  • If possible, avoid offsets. A straight vertical installation is more efficient and less likely to develop creosote. If an offset is required to avoid rafters or other obstructions, measure the horizontal distance required and the vertical height available. Both 15° and 30° elbows are available. Elbows greater than 30° are not allowed in the United States. Two offset (four elbows) in a single installation is permitted. Refer to the offset chart in the back section of this catalog. At least one Elbow Strap is required. Elbow Straps ensure adequate support.
  • Determine the minimum chimney height above the roof line. Building codes require a minimum of 3′ above the roof penetration and at least 2′ higher than any portion of a building within 10′. See figure 1. The termination cap is installed above that point.
  • Chase Top Flashing is available. A pitched roof flashing can be locally made, if required. A storm collar is required for all installations using a flashing.
  • Determine the total length of chimney required for the installation. To calculate the installed per length of 10″-16″ DuraChimney II pipe, subtract 1″ per joint. Minimum recommended chimney height, at sea level of straight vertical chimney, is 10′ to 15′ above the fireplace outlet. Higher elevations, or the use of elbows, will require approximately 30% to 60% more height to provide for an adequate draft.
  • For a UL approved shroud, see the DuraChimney II Shrouds Installation Instructions (L181). View online at www.duravent. com, under catalogs and instructions.
  • Be fire safe. Maintain at least 2″ clearance to combustibles. Follow local building codes and have your chimney inspected by a certified professional.

Product Resources

Catalogs

Bulletins

Sales Sheets

FAQ

What comes in the 30-degree Elbow Kit for 8-inch DuraChimney II?

Two 30-degree elbows and one elbow strap for 8-inch DuraChimney II. One elbow turns the chimney out around the obstruction and the second brings it back to vertical, while the strap fastens the offset to the framing so the elbows do not carry the weight of the chimney above. The angle is fixed; DuraChimney II elbows are not adjustable.

Is 30 degrees the largest offset allowed?

Yes. UL 103 limits chimney offsets in the United States to 30 degrees, and DuraVent permits at most two offsets (four elbows) in one DuraChimney II installation. You cannot stack elbows to make a 45 or 60 degree turn. The offset chart in the DuraChimney II catalog lists the horizontal reach for 30 degree pairs with different pipe lengths between them.

How does an offset affect draft and chimney height?

Every offset restricts the natural draft, so DuraVent recommends 30 to 60 percent more chimney height than the 10 to 15 foot minimum above the fireplace outlet when elbows are used, and advises a straight vertical run wherever possible. A cold or offset chimney also forms more creosote, so plan on annual inspection and cleaning.

How is the offset supported?

Fasten the elbow strap from the kit around the pipe at the offset and screw it to the framing; DuraVent requires at least one strap per offset. Continue the normal supports above and below: a Wall Strap every 8 feet and a Supplementary Support where the total height exceeds 50 feet. Sections twist-lock, so no screws are normally needed at the elbows.

Will these elbows fit other DuraVent chimneys?

No. They are made for 8-inch DuraChimney II only; DuraVent does not allow DuraChimney II, DuraTech and DuraPlus components to be mixed. The 8-inch DuraChimney II line has its own instructions (L183) and the same 2-inch clearance to combustibles applies through the offset; 15-degree pairs are sold as a separate kit.

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 our distributor 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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