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Newbie Hearth Insulation Question - Forno Bravo Forum: The Wood-Fired Oven Community



New Forno Bravo Forum Feature

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.
- 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.

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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Newbie Hearth Insulation Question

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  • Newbie Hearth Insulation Question

    Just joined today after lurking for a while. We started our pizza oven project a few weeks ago and are getting to the stage of heart insulation and hearth laying.
    We have built the brick and concrete base for the oven so far.
    We are trying to keep to a budget and use recycled materials as much as possible.
    The question is therefore when mixing the vermiculite/portland cement for the hearth insulation base could you add broken glass as ballast therefore reducing the amount of vermiculite needed.
    This would keep the cost down but would the insulation still be good enough?
    Thanks guys in anticipation.

  • #2
    Re: Newbie Hearth Insulation Question

    Not sure if you have proceeded or not. I wouldnt use glass in the insulation. Vermiculite and portland are fairly inexpensive. Glass wont insulate either.
    My Progress:


    • #3
      Re: Newbie Hearth Insulation Question

      Thanks for that.
      Yes we have progressed and went with the standard vermiculite/portland mix for the hearth pad. This is drying nicely now and hope to crack on with the firebrick hearth tomorrow.
      Didn't want to mess it up so thought it was best not to mess with standard thinking.
      Thanks for the reply.