web analytics
Why double walled chimney pipe? - Forno Bravo Forum: The Wood-Fired Oven Community


1 of 3 < >


Hello, Forno Bravo Community Forum members.

As many may have noticed already, the Community Forum site was briefly down today. While working on scheduled routine maintenance, we encountered an error when trying to add a software update. As the site is now back up and running, some of you may notice that some recent data has been misplaced from November 10th up to today. We are currently working on resolving the issue. The forum has full operational capabilities and we encourage all forum members to continue actively posting in the threads.

We apologize for any inconvenience that this issue may have caused you. The Forno Bravo family values each and every member of our community. If you have any issues or concerns, please feel free to let us know on our issues thread here:


Thank you for understanding.
2 of 3 < >

Forno Bravo Forum Thread Message

Hello, Forno Bravo Community Forum Members!

The Forno Bravo team has heard the feedback in regards to the community forum. We wanted to take the time to re-enforce our commitment to a fully engaged Forum with professional moderation.

Our top priority as a company is to fix all forum errors and issues that you are experiencing. As we are swiftly working on these problems, we want to say that we highly value the Forum Bravo Community Forum and every single community forum member.

We have set up this thread so that every member can address any concerns, issues and questions about the forum. Please feel free to ask whatever you would like in regards to the forum; let us know what issues you are experiencing so we can work on resolving them as fast as possible. However, we stress that we would like constructive engagement, so please be specific about the issue you are experiencing.

Thank you for all of your patience and continued support.

Link to topic: http://www.fornobravo.com/community/...with-new-forum
3 of 3 < >

Dome Installation Video - Casa / Premio / Modena


For many of you who bought a modular oven, you may have asked how we put the domes together when we build them. For those of you considering one of our ovens, we shot a video to make your install easier.

Check it out on our You Tube Channel.


If the link doesn't work, simply go to You Tube and type Forno Bravo Channel. The video title is How to Set your Forno Bravo Oven Dome Pieces.

Thanks for participating in our Forum. We will have more video content available soon.
See more
See less

Why double walled chimney pipe?

  • Filter
  • Time
  • Show
Clear All
new posts

  • Why double walled chimney pipe?

    I've got most of my framing done around the oven and getting ready to start on the roof. I have an 8" diameter steel pipe with a damper that came with the oven and was planning to extend it with double walled pipe and spark arrestor. Looking at the dimensions of the double walled pipe and allowing for clearance, it seems to me that it will look a little oversized (too wide) for the look I was going for.

    Is there a reason why regular single walled pipe can't be used? Are steel studs and HB considered combustables?

  • #2
    Re: Why double walled chimney pipe?

    Hi Dan,

    As long as you are doing to insulate around your single wall pipe, and of course set it back from combustibles, you can use single wall steel pipe. Metal studs and HB are not combustible, though you will want to build an enclosure around the pipe and insulate it.

    In fact, the Casa and Premio vent pieces are designed to take single wall pipe (in cm's not inches), without an adapter.

    The advantage of the double wall pipe is that all the insulating work is done for you. It's easy to just snap it all together, and know that it is UL approved and that is will stay hot on the inside (which keeps it clean and drawing well) and cool on the outside. That said, it is more expensive.

    Hope this helps.
    Pizza Ovens
    Outdoor Fireplaces


    • #3
      Re: Why double walled chimney pipe?

      Thanks James,

      I realize the benefits of the double walled pipe, but esthetically it just seems too wide. I'll try drawing it up with a chase around it (although it will be wider), it may look ok.



      • #4
        Re: Why double walled chimney pipe?

        Can anyone tell me - If I used single-walled pipe, what kind and depth of insulation would I need in order to brick in around it?



        • #5
          Re: Why double walled chimney pipe?

          I would think that an inch of insulating blanket, or two inches of vermiculite concrete would be about right. Remember, single wall pipe is for freestanding ovens only. Code won't allow it for use in structures.
          My geodesic oven project: part 1, part 2