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Insulation questions - 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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Dome Installation Video - Casa / Premio / Modena

Hello,

For many of you who bought a modular oven, you may have asked how we put the domes together when we build them. For those of you considering one of our ovens, we shot a video to make your install easier.

Check it out on our You Tube Channel.

https://www.youtube.com/watch?v=-7q7...jSniYogfUra06Q

If the link doesn't work, simply go to You Tube and type Forno Bravo Channel. The video title is How to Set your Forno Bravo Oven Dome Pieces.

Thanks for participating in our Forum. We will have more video content available soon.
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Insulation questions

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  • Insulation questions

    I'm trying to head the advice here and take my insulation seriously.

    I'm curious if there is a sticky that explains the relative R-values of the most commonly used insulation?

    Also, the blankets I've seen are often covered with a concrete cladding. Doesn't compressing the air space with this heavy layer of concrete destroy some/much of it's insulating value?

    Is the concrete cladding insulative? Or does it serve more as a heat sink? I ask because I noticed the old style was to put the insulative floor below the structural floor, and that has been reversed now.

    I'm wondering if putting the fire board insulation on the inside of the brick walls between the loose vermiculite the wall would help anything, relative to the cost of doing so.

    Thanks again to everyone here willing to share their knowledge and experience!

  • #2
    Re: Insulation questions

    Forgot - I see in some of the builds people are using a foil between the brick and cladding. Does this serve any actual purpose?

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    • #3
      Re: Insulation questions

      people are using a foil between the brick and cladding. Does this serve any actual purpose?
      No. It's useless. Don't do it.
      is a sticky that explains the relative R-values of the most commonly used insulation?
      No. Google is your friend in this sort of question:
      Google
      Also, the blankets I've seen are often covered with a concrete cladding. Doesn't compressing the air space with this heavy layer of concrete destroy some/much of it's insulating value?
      The refractory insulation blanket is much denser and heavier than the home insulation you may be used to. It shouldn't compress much. You can also build an armature and stucco on top of that, if it's a concern.
      Is the concrete cladding insulative? Or does it serve more as a heat sink?
      Neither. It shouldn't get hot at all once your oven dries out. It's meant to keep your oven and insulation dry. Wet insulation is useless insulation. It's actual usefulness in this regard is debatable (google "brick oven stucco" or "render" for a thousand debates on this topic). It also encapsulates the insulation fibers which you don't want to be breathing.
      My geodesic oven project: part 1, part 2

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