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6" vs 8" interior flue for 36" oven? - Forno Bravo Forum: The Wood-Fired Oven Community

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New Forno Bravo Forum Feature

Forno Bravo Forum Community,

You will notice a new forum at the top of the main page called, "Ask Me Anything". This forum will be used for live one hour "Ask Me Anything" (AMA) sessions hosted by people who are knowledgeable in different areas pertaining to wood fired ovens. How it works:
- Each AMA will have a "sticky" thread where the community can post questions they would like answered during the live session. This will allow everyone to participate even if you can't be online for the live session. These questions will not be answered by the host until the live AMA; if you need an answer quickly, you should post it in the appropriate Forum area for the community to respond.
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- The live thread will remain in the AMA forum to view after the session.

To kick off our AMA feature, we have invited author, chef and master bread maker and host of Pizza Quest, Peter Reinhart, to be our first host! Peter will be in the Forum on Monday, February 15th, from 7:00 - 8:00 pm EST. If you are unable to be online during the live session, you can post your questions in the sticky post. Peter will answer those questions during the live session on February 15th. You can view Peter's answers to your questions as well as what happened during the live session in the session thread.

We hope you enjoy this new feature! Please let us know if there is a topic that you'd like to have as an AMA and we'll look for a host!

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Dome Installation Video - Casa / Premio / Modena

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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.

https://www.youtube.com/watch?v=-7q7...jSniYogfUra06Q

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.
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6" vs 8" interior flue for 36" oven?

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  • 6" vs 8" interior flue for 36" oven?

    I realize the general spec is 6" for 36" and 8" for 42", and I realize that going too small is worse than going too large...but...would an 8" flue definitely not be too big for a 36" oven? I'm not sure what the risks are. Extra heat loss perhaps? Nonideal airflow?

    Thanks.

    Website: http://keithwiley.com
    WFO Webpage: http://keithwiley.com/brickPizzaOven.shtml
    Thread: http://www.fornobravo.com/forum/f21/...ttle-7878.html

  • #2
    Re: 6&quot; vs 8&quot; interior flue for 36&quot; oven?

    Lots of us have 8 inch square flue tiles on thirty six ovens, which are even bigger than round ones, and mine, at least, draws like a champ.
    My geodesic oven project: part 1, part 2

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    • #3
      Re: 6&quot; vs 8&quot; interior flue for 36&quot; oven?

      I've been using my 42" oven for about 9 months now, and the biggest mistake I made in the construction was using a 6" flue instead of an 8" (it was easily available, and the 8" was going to be hard to get hold of at the time). The smaller flue draws really well but just cannot handle the amount of smoke, particularly when starting, or when the wood is a bit damp, so a lot of smoke goes up the flue OK but a lot also comes straight back out through the front arch opening into the operator's face!
      The other mistake I made, although not a big one, was that instead of a poured concrete base supporting a layer of vermiculite and then firebrick hearth, I used a base of AAC panels to support the firebrick hearth. Quick and easy, but not really a good enough insulator, so in spite of having a well insulated dome, I lose a lot of heat through the bottom of the oven and it cools off quicker than I would like. Ah well...next time...

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