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DuraVent DuraChimney II 12 inch Kit Builder: choose a whole chimney on one page
The DuraVent DuraChimney II 12 inch Kit Builder is a page for choosing a complete fireplace chimney, not a boxed kit. You select the parts from the fireplace top to above the roof. Their combined prices make up your total. 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 12 inch diameter must match your fireplace’s flue collar, the opening that connects to the chimney. For masonry or factory built fireplaces, the fireplace maker must list DuraChimney II for use. Each chimney serves one fireplace.
Start with the required pipe selection: sections 12, 18, 36, or 48 inches long, in the quantities you need. To move the run sideways, choose 15 or 30 degree elbows. They are sold individually, and each sideways shift needs two elbows and an elbow strap. Add the supports, shields, and roof finishing parts your route needs. Wall straps hold the chimney every 8 feet. Need a larger diameter? See the DuraVent DuraChimney II 14 inch Kit Builder. The DuraVent DuraChimney II 12 inch Kit Builder ships free from My Cozy Outdoors with No Sales Tax (except WY) and the full manufacturer warranty.
Details
SKU: 12DCA-12
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
10″, 12″, 14″, and 16″
Listings
UL Listed to UL 103 and ULC S604 standards (MH7399).
Instructions
- DuraChimney® II 8″ Installation Instructions
- DuraChimney® II 8″ Installation Instructions FRENCH
- DuraChimney® II Installation Instructions
- DuraChimney® II Installation Instructions FRENCH
- DuraChimney® II Installation Instructions SPANISH
- DuraChimney® II New Chimney Cap Assembly Installation Instruction Addendum
- DuraChimney® II Shroud Instructions
- DuraTech® & DuraChimney® II European Copper Pots Instructions
Typical Installation
Refer to our Typical Installation drawings to select the appropriate component parts for your installation.
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 |
Planning 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
- DuraChimney® II Approved for Air-Cooled Listing Bulletin 2016
- DuraChimney® II 10”-16” Chimney Cap Bulletin 06-15-2018
- DuraChimney® II 8” Diameter Now Available Bulletin 08-03-17
- DuraChimney® II 8” diamètre maintenant disponible Bulletin 11-19-17
Sales Sheets
FAQ
How does the 12-inch DuraChimney II configurator work?
You assemble the chimney here rather than buying a fixed kit. The 12-inch Length of Chimney Pipe row is required (12, 18, 36 or 48 inch sections, any quantity); the elbow and Build Your Chimney Kit rows are optional and hold the anchor plate, firestop spacer, attic and roof shields, chase top flashing and collar, storm collar, cap, copper-pot adapters and snow splitter, each priced on the selector.
Is 12-inch DuraChimney II right for my fireplace?
It suits wood, oil, coal or gas fireplaces with a 12-inch flue collar whose manual lists DuraChimney II as an approved chimney; never fit a chimney smaller than the collar. The chimney is double-wall and air-cooled, unitized so nothing is assembled in the field, listed to UL 103 and ULC S604 and rated for continuous 1000 F flue gases.
How do I work out how many 12-inch sections to buy?
Measure from the anchor plate on the fireplace top to the cap and subtract 1 inch per joint. DuraVent recommends at least 10 to 15 feet of straight chimney above the fireplace outlet at sea level, more at altitude or with elbows, and code requires the cap 3 feet above the roof penetration and 2 feet above any part of the building within 10 feet.
Can the chimney offset, and what supports it?
Two offsets (four elbows) of 15 or 30 degrees are allowed, never steeper, and each offset needs an elbow strap. Support the run with a Wall Strap every 8 feet, use a Supplementary Support once the chimney is taller than 50 feet (each carries 25 feet) and a Stabilizer to keep it centered in the chase. Joints twist-lock; screws are not normally required.
What is the Snow Splitter for?
A Snow Splitter is a wedge-shaped guard fitted on the roof above the chimney so sliding snow and ice divide around the chimney instead of hitting it. It is worth adding on steep or metal roofs in snow country. Choose it in the Build Your Chimney Kit row, along with the Chase Top Flashing or Collar and the Storm Collar that finish the top.
What clearance and firestopping does DuraChimney II need?
Keep 2 inches of air space to combustibles, run the chimney in an enclosed chase, fit a Firestop Spacer at every floor and ceiling, an Attic Insulation Shield through an attic and a Roof Radiation Shield where it leaves the chase, with a 1/2-inch air gap under the chase top flashing. The DuraChimney II range also covers 8, 10, 14 and 16 inch collars.
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
- 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
- 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.
Customer Reviews
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What Our Customers Say
D
A sauna turns your garden into a spa oasis. We debated it for a while, but after renovating our house, we pulled the trigger and bought a sauna from Norse Steam and Maya. She was always super responsive and helpful throughout the process. Don't kid yourself, getting a really nice sauna is not that easy. Sizing and heating need to be figured out, as does the building, but we have always had a helpful partner on our side. She never upsold us on anything we didn't need, and we got some nice freebies when the sauna was delivered. And now we can really enjoy every moment in our garden.
KF
I'm really happy with my sauna purchase. Maya gave above and beyond excellent customer service. She wasn't pushy and gave impressive followup after the delivery to make sure everything was just right.
DE
I enjoy my FD2 Sauna with Red Light, Infrared and radiant heat. Use it 5x a week and my post workout soreness is minimal and sleep great. Maya at Norse Steam was excellent to work with.
B
We purchased the 3-person sauna for our outdoor garden. We chose the cube sauna for the aesthetic and could not be happier.
I assembled by myself except for the 2 large panels (requires a few people). Instructions were good - took me two partial Saturdays to complete and a few hours to unpack and organize in advance of assembly. Had my elec. add a NEMA enclosure on the back for the controller and power for lights and a 2nd panel for the wireless control.
Customer service was excellent
MP
Awesome Sauna and Awesome Company and Experience purchasing it from Maya!
After much research I chose the Finnmark FD-2 and it has met and exceeded all my expectations! Easy to assemble and it functions great - just as advertised. I highly recommend it for home use!
EA
Recently purchased the Finnmark one person after much research. Extremely happy with it and the ordering process. Maya was very responsive and helpful during the process and keeping us updated while we waited for shipment. There were several places I could have ordered this, but i chose Norse Steam based on the communication and customer service which was fantastic. The shipment was also excellent. The setup was pretty seamless for two people - but the best part is the sauna experience 10/10
G
Maya is amazing - super helpful and responsive. Looked at many stores, these guys have the best prices and service. Highly recommend
GR
Norse Steam, and specifically Maya, were extremely helpful as I was making the decision for our Sauna. I was able to get all of the necessary details to make a decision as construction was happening in my backyard to make space for it.
We absolutely love the CL7G. It is extremely comfortable for 6 people (can fit more less comfortably). The Thermory Spruce and Aspen in the interior smells great. The lighting is lovely. We paired the CL7G with the Harvia Spirit 10.5kw.
RS
Had great experience shopping at Norse Steam for the new heater. They had very good deal, with rocks. Customer service was good, and responded very fast with my questions. Received the heater, and it looks good, and the quality seem to be great. Will install soon, and am very excited to start experiencing sauna the way it ment to be
O
positive purchase experience - Harvia Legend 150 SL woodstove
thanks Norse Steam for flawless transaction - I got instant replies on my questions, received competitive price on the wood stove and got it delivered within two weeks!
Can highly recommend Norse Steam for others.
JR
Smoking Hot Tub!
I got the Norse Steam SaunaLife wood-fired hot tub, the S4N model, and its been seriously great. It heats up quicker than I expected, usually around an hour and a half, and once its hot, it stays that way for a good long while. The wood-fired system is simple to use, and honestly kind of fun.
The tub itself feels solid and well put together. The thermo-spruce exterior looks beautiful in person, and the fiberglass interior is smooth, deep, and easy to clean. Its the kind of setup that just works without a bunch of fuss, which I really appreciate.
Also, the team at Norse Steam was genuinely great to work with. Super helpful, quick to respond, and made the process really easy from start to finish. It felt like they actually cared that I was happy with it. The tub has totally become a go-to way to unwind, and I wouldnt change a thing.
S
Maya was so knowledgeable and responsive
Maya was so knowledgeable and responsive. She helped me understand the product options and found a fantastic solution that fit our needs. Her follow through was very helpful and made us comfortable with our decision. We are extremely happy with the end result!
W
Great service
I recently purchased the Harvia Club sauna equipment, and I am thoroughly impressed with both the product and the customer service experience. The heaters robust performance and durable stainless steel construction make it ideal for larger sauna spaces, providing consistent heat and a relaxing environment. Its compatibility with advanced controls ensures a personalized sauna experience every time.
The customer service team was exceptional, prompt, knowledgeable, and helpful throughout the purchase process. They ensured smooth delivery and provided clear guidance on installation and operation. Overall, I highly recommend Harvia Club for anyone seeking premium-quality sauna equipment backed by excellent support!
BT
Great Sauna & Purchase Experience
Great experience purchasing Finnmark FD-2 from Norse Steam. Good communication and easy to assemble. Temperature increases quickly (30 minutes or less to 140) and maintains well. So far this has been a great purchase.
M
Great sauna and great customer service
We purchased the Finnmark SD-1 sauna. Maya was extremely helpful with the purchase. We had an issue with the sauna not reaching the maximum temperature, and Maya connected us with the appropriate technician that explained how to correct the issue. The sauna now heats to the maximum temperature (170 degrees) in less than an hour, and it is a great unit. We are very happy with it, and we would definitely purchase from NorseSteam if we needed any other items.
JK
Sauna Review
I recently purchased a sauna from Norse Steam, and I couldn't be more impressed with the entire experience. From start to finish, their customer service was exceptional, and Maya deserves special recognition for her outstanding support!
Maya was incredibly knowledgeable and patient, answering all my questions about the sauna features, installation process, and maintenance. She went above and beyond to ensure I selected the perfect model for my home. Even after the purchase, Maya followed up to make sure everything was running smoothly and that I was satisfied with my sauna.
The sauna itself is top-notch beautifully designed, durable, and easy to use. It's clear that Norse Steam takes pride in the quality of their products and their commitment to customer satisfaction.
If you're considering a sauna, I wholeheartedly recommend Norse Steam. With their excellent customer service and high-quality products, you're in great hands. Thank you, Maya, and the entire Norse Steam team for a fantastic experience!
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