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6" block? - 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.
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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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6" block?

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  • 6" block?

    I was wondering if anyone has used 6" block for the hearth. I have to have a center wall going down the middle and am thinking of using 6" and filling all cells. Any opinions?
    Mark

  • #2
    Re: 6" block?

    Hi Mark,
    I was Cambria over the weekend and saw the Motel next door building planters and short retaining walls with 6" wide block, rebar in all cells and the horizontal rebar near the top row (I can't think of the name for the horizontal rebar that "ties" it all together). I know an oven is much heavier but if you fill all cells and rebar it all, ESPECIALLY if you have a center wall as well, it seems like it would work. I'll be using 8" block since I think Los Angeles requires that as a minimum now since the earthquake but people in other parts of the world have used less.
    Good luck with the build, Dino
    "Life is a banquet and most poor sons-of-bitches are starving to death." -Auntie Mame

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    • #3
      Re: 6" block?

      I built my centerwall using 6" blocks - worked a treat!!!



      I later used the fiberglass reinforced surface bonding cement on each side since it does not have much in the way of cores to fill. I put in on extra thick since I figured I'll be hititng it with firewood occassionally. Been over a year and no problems. It also made it very simple to span the openings with the concrete backer board. I put one support in each opening in the center of the exposed board to hold up the hearth while it cured.

      Christo.
      Last edited by christo; 11-25-2008, 01:38 PM.
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      • #4
        Re: 6" block?

        Thanks for the help to Dino and Christo.

        Comment


        • #5
          Re: 6" block?

          Originally posted by Dino_Pizza View Post
          Hi Mark,
          I was Cambria over the weekend and saw the Motel next door building planters and short retaining walls with 6" wide block, rebar in all cells and the horizontal rebar near the top row (I can't think of the name for the horizontal rebar that "ties" it all together). I know an oven is much heavier but if you fill all cells and rebar it all, ESPECIALLY if you have a center wall as well, it seems like it would work. I'll be using 8" block since I think Los Angeles requires that as a minimum now since the earthquake but people in other parts of the world have used less.
          Good luck with the build, Dino
          Penso che farò il muro di sostegno per il basamento del mio forno con blocchi da 8", 15 cm da noi, ma certamente ci metterò la malta tra uno e l'altro.

          Da noi il rischio terremoto è relativamente basso, almeno spero sia così.

          Ciao Dino

          Dario

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          • #6
            Re: 6" block?

            Originally posted by Gryso View Post
            ma certamente ci metterò la malta tra uno e l'altro.



            Dario
            Dario,

            You can do it either method. Build the block wall traditionally with mortar between the block, or dry stacking them and filling the cores with concrete. It has been suggested that dry stacking them, inserting steel rods, and filling the cores (at least every other core) is perhaps stronger. It is certainly easier to keep level for those of us with no experience.
            Mike - Saginaw, MI

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