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Are these firebricks the right weight? - 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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Are these firebricks the right weight?

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  • Are these firebricks the right weight?

    We're all set to start building the oven floor. I decided to double check our red firebricks and compare them to the yellow ones I bought for another project years ago.

    The red firebricks are 8 5/8 " by 4" and weigh 6.3 pounds apiece.

    The yellow firebricks are slightly larger-- 8 7/8" by 4 3/8" and weigh 7.5 pounds.

    Does the weight of the red firebricks sound right? Low duty? Medium duty?

    Thanks very much!

    P.S. I am taking photos of my oven every step of the way. I'm in the middle of "work stuff" and "life stuff" right now, so posting them is beyond my abilities.

    I really appreciate all the support and advice that's on this forum!

    --DB

  • #2
    Re: Are these firebricks the right weight?

    Sounds about right: The weight thing is to warn people off the kind of insulating firebricks used in ceramic kilns, which would weigh under two pounds. I believe that you'd need a scientific scale to determine the alumina content in brick - they would all look the same to a postal scale.
    My geodesic oven project: part 1, part 2

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    • #3
      Re: Are these firebricks the right weight?

      Thanks very much. That's a big relief!

      I have another question, which I'll post separately, because it's about the insulfrax blanket. The supplier I've called has it in 2" x 24" x 12.5' in 3 weights--4 lb, 6 lb, and 8 lb. I'm inclined to go with the heaviest, but maybe that's overkill.

      I'll post this question separately.

      DB

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