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Questions Before actual oven constuction. - Forno Bravo Forum: The Wood-Fired Oven Community

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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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Questions Before actual oven constuction.

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  • Questions Before actual oven constuction.

    OK I have tried 3 time to post this. Hope this one posts. Anyway I was wondering about insulating board for under the oven floor. I read somewhere that if the board get wet it tends to disintagrate. I thought about wrapping the board in aluminum foil to protect it from moisture. I am worried that the concrete stand will "sweat" and deteriorate the board causing the oven floor to fall. Any thought? Also is fireclay the correct mortar or should I use something else? Thanks.

  • #2
    Re: Questions Before actual oven constuction.

    Spike,

    Use the stuff they recommend in the Pompeii instructions. Work to keep the insulation dry, but don't worry about some water getting on the insulation. It won't have any movement that will make it fryable, or loosen it up at all. The only time it might get wet is during construction. After construction, the oven will keep it dry. And your curing fires will dry the insulation as you bring the oven on line...

    JED

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    • #3
      Re: Questions Before actual oven constuction.

      Yes, almost all refractory insulation boards are water resistant. Insblock19, which I used, certainly is.
      I thought about wrapping the board in aluminum foil to protect it from moisture.
      Aluminum foil is much more likely to deteriorate in the presence of caustic portland cement than your insulation board is with ambient moisture. Keep the foil in the kitchen drawer, is my advice.
      Also is fireclay the correct mortar or should I use something else?
      You can assemble your mortar with a mixture of fireclay and sand. It's been done but it is unconventional. For a discussion of mortars, follow this link.
      My geodesic oven project: part 1, part 2

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      • #4
        Re: Questions Before actual oven constuction.

        Spike, your outdoor kitchen looks great. Keep the pictures coming as you build your WFO.

        Tom
        Member WFOAMBA Wood Fired Oven Amatueur Masons Builders America

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