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Combining fire bricks - 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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Combining fire bricks

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  • Combining fire bricks

    Hello All,

    This question is directed towards our experienced members who might be familiar with this issue. I have two chains started on oven #2 and too few of the same kind of bricks to complete another chain. I have enough different fire bricks, of the same dimensions, to complete the oven (36" Pompeii). I am sure the fire bricks are from different manufacturers and they are different colors too. Is there a problem combining different "medium" fire bricks to complete my oven? The question is more about the thermal expansion from the different bricks and the possibility of cracks developing in the joints.

    My guess would be that it is ok for our backyard oven purposes. As a positive note, it would give me the opportunity to stagger the colors for an interesting effect.

    I am using dry refractory mortar to place the bricks and poor mans mortar to fill the V voids. So far, the oven is going together well and no problems except for this question about using different bricks.

    Outdoor temps are high 70's, the birds are chirping and there is plenty of beer in the 'fridge. Arizona is great this time of year.

    Cheers,

    Pizzanut
    Bob

    Here is the link to my oven number 1 construction photos!

    Here is the link to my oven number 2 construction photos!

  • #2
    Re: Combining fire bricks

    I think the thermal expansion on the bricks would be nearly identical. I don't think you will have a problem.
    My geodesic oven project: part 1, part 2

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    • #3
      Re: Combining fire bricks

      Thanks for your reply Dave.

      I'm about 40% done with the brick dome construction and decided to continue with the poor man's mortar by itself. It is sticky and seems to be no problem even in our very dry air when mixed in small batches. Today I will start planning the entry and cutting a few bricks to give me an idea how the arch (or not) will look. The simplicity of the angle iron support is interesting and practical.

      Cheers,
      Bob

      Here is the link to my oven number 1 construction photos!

      Here is the link to my oven number 2 construction photos!

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