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Vent landing size - 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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Vent landing size

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  • Vent landing size

    Is there a minimum vent landing size for a 42" oven? Currently mine is a trapeziod with dimensions of 50cm on the top and sides, and 57 on bottom. Is this size sufficient? Also, when I make the arch, how far from the oven opening should the chimney opening be? I plan on using one of the DuraTech chimney's from FornoBravo. Thanks!
    Oven Progress
    Bread Photos
    Oven Stand Thread

  • #2
    Re: Vent landing size

    I do not know if there is a minimum, I would think what ever is comfortable, that is what I did. Mine is 12 inches deep, 19 inches wide at oven mouth and 21 inches wide at the end. I don't remember the exact dimensions of the vent opeing in the arch, but is somewhere in the neighborhood of 4" X 14". You can see a picture on my oven post for reference. The opening was centered in the vent arch to make construction easier. I poured a molded vent transition to go to an 8" duravent chimney.

    My vent works well and I only get a very very small amount of smoke when my fire is just started and if it smoking heavily. So, the thing I would do different is make my opeing as wide as possible, going to the very edge of the arch, since the smoke that occasionally escapes is going past the closed side of the vent and does not make it into my swirling vortex of smoke. It is wild to see the smoke coming forward, then turn a 180 and go up the vent. I think making the vent opening wider would have helped.
    Wade Lively

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    • #3
      Re: Vent landing size

      Thanks for the advice about the width. Looks like your vent opening beings about 1/2 brick length from the oven opening. Does that sound right? Does it make a difference how far from the opening the vent is?
      Oven Progress
      Bread Photos
      Oven Stand Thread

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      • #4
        Re: Vent landing size

        Yeah, that is about right. I would think that closer is better, because you keep more heat in the air. The more heat the faster it wants to rise and the hotter you keep the chimney, which should help keep the soot build-up down.
        Wade Lively

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