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Reclaimed brick project... - Forno Bravo Forum: The Wood-Fired Oven Community

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I'm Peter Reinhart! Ask Me Anything! Monday, February 15, 2016 7:00-8:00 pm EST

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.

Ask Me Anything New Forum Feature

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.
- Another thread will be posted for the live AMA. Registered users who are logged in during the live session can interact with the host by asking questions and receiving responses.
- The live thread will remain in the AMA forum to view after the session.

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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Reclaimed brick project...

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  • Reclaimed brick project...

    Greetings...
    My wife and I have taken the leap of faith into the WFO arena. We've lurked around the edges of this site long enough, gathering ideas and 'I wish I would haves' to incorporate into our project. We feel like know some of you fairly well just from reading your posts.

    Anyway...

    Geneva Steel (Orem, Utah) was selling off unused, high-temp fire brick for $.50 a piece. We went to the site and were like kids on a treasure hunt. We found all kinds of pre-cut, angled brick of all different sizes. We ended up limiting our take to the standard sized 4.5" X 9" bricks and tapered 9" bricks for the barrel roof. We found, what we call a 'jail brick', to use over the ash dump, and some other various sizes (their use still to be determined).

    It's nice to be a registered user finally and to be able to take advantage of all that there is here.

    We've just completed the barrel vault using the tapered bricks, which are 2.75" thick. Wondering if we need to add another layer of bricks, concrete or fire clay to increase the thermal mass before covering with thermal blanket.

    Any thoughts/experiences would be appreciated.

    Cheers...

  • #2
    Re: Reclaimed brick project...

    Hi Guys, Let me first congratulate you on your build thus far.
    I notice no one yet has replied to your pondery and I, having only just finished my build wish to try and assist with my two penneth.

    I am by no means an expert on thermal mass but here are my thoughts on the matter.

    If you were to buy a ready to go WFO from a supplier the thickness of the dome wouldn't be as thick as you have now, so surely a 2.75'' must be ok to use.

    adding more thermal mass means longer to heat up and more fuel to saturate the dome BUT means the heat given off will last longer.

    Dependant on how you wish to use your oven would then dictate if you really, really required extra mass.
    In simple terms (because I am) if standard bricks were 5.5'' long Im sure most of us would have ovens of 2.75 deep.
    If it were me I would insulate over what you have because I don't believe it will be a problem.
    Having now said that I'm sure you will now receive more replies if anyone disagrees with my theory.

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    • #3
      Re: Reclaimed brick project...

      Originally posted by drinkswellwithothers View Post

      We've just completed the barrel vault using the tapered bricks, which are 2.75" thick. Wondering if we need to add another layer of bricks, concrete or fire clay to increase the thermal mass before covering with thermal blanket.

      Any thoughts/experiences would be appreciated.

      Cheers...
      Hmmm...this one slipped through the cracks.

      These brick came from a steel mill? They are most likely high duty, so thermal conductivity will be high too, I don't think you want to add anymore mass than a reinforced cladding ( 1/2"-1" ) over your dome, since there are a series of arches that are are not bonded...just a bit of added structural insurance.

      But the issue I see ( or how it appears in the pictures ) is that you have no insulation under your floor. If this is true, what you have there is a big heat sink, and the concrete slab will suck the heat out of your brick..which will create unbalanced heating inside the oven. In fact, every bit of uninsulated mass that touches thermal mass, will draw heat.

      Bottom line, the oven will perform poorly....if you choose not to fix this now, be prepared for very,very long firings and a temperamental oven.
      Old World Stone & Garden

      Current WFO build - Dry Stone Base & Gothic Vault

      When we build, let us think that we build for ever.
      John Ruskin

      Comment


      • #4
        Re: Reclaimed brick project...

        Yikes...just noticed the date on the original post.
        Old World Stone & Garden

        Current WFO build - Dry Stone Base & Gothic Vault

        When we build, let us think that we build for ever.
        John Ruskin

        Comment

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