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Thinking of Casting - Forno Bravo Forum: The Wood-Fired Oven Community

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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.
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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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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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Thinking of Casting

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  • Thinking of Casting

    I'm thinking about casting my oven with a product called Kaocrete. The manufacturer is only 45 mins from me so I wouldn't have to pay shipping. It's only about $25 a bag. My only question is whether or not it would be a good product to use based on it's content. The alumina is 47% and the silica is about 40%. The technical sheet can be found here for all of the kaocrete products. http://www.thermalceramics.com/upload/pdf/314-105.pdf

    Thanks,


    Tony

  • #2
    Re: Thinking of Casting

    As long as you have access to a kiln large enough to properly fire the cast WFO or a plan for doing it (ie: home made brick kiln, wood fired or whatever) I'd give it a try. I've built small furnace's using similar materials but upon recommendation of AP Green I designed my furnaces such that each piece could fit into a pottery kiln that was available to me and be fired at proper temperatures under controlled conditions. Not saying you couldn't cast one, cure it and burn it in the middle of a bonfire and not have it come out OK. If you have a couple of hundred bucks to venture and the time... I'd go for it.

    But then consider the source... I'm the guy building a WFO around a steel dome :-)

    Wiley

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    • #3
      Re: Thinking of Casting

      aferaci,
      I cast a 42" Low Dome about a year ago from Mizzou Castable from Harbison Walker. I chose this material since it matched both the thermal mass and conductivity of fire brick. I posted a series showing the male molds I used right after I finished it, in Tools, Tips and Techniques, I assume it's still back there.

      After something like 25 firings, what did I learn?:

      The dome needs to be cast in ONE pour. You will get fine cracks where the pours meet. You will need an external mold as well. We tried to work our way up the molds without one and failed miserably. You only need a mold about 2/3's of the way up, after that you can just mound it. These cracks don't seem to affect performance or strength (I've jumped on the dome).

      Cure slowly and steadily just like everyone else. You need to hit a certain temperature to achieve maximum strength. For the mizzou it was 1250 F. Once you do your perlcrete or other insulation you should have no problem hitting that with hardwood. I hit 1600 interior temp, so the outside probably hit 1250.

      Most of all go for it. It is far better to have a pizza oven than to go without!

      Enz

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