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hearth insulation questions - Forno Bravo Forum: The Wood-Fired Oven Community

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Photo Galleries are back! Instructions below.

Dear forum users,
Thank you for your patience with the Photo galleries. We've got your galleries online!
We have finished writing a custom script to migrate the PhotoPlog to vBulletin5’s albums.

Unfortunately V-Bulletin killed the "Photoplogs" in their software upgrade which was unforeseen and we're the first development group to have written a script for getting the galleries back... that said, it took some time to reverse engineer the code and get the albums to move over seamlessly!

Forum users will be able to access their “PhotoPlog” images through their user profile page by clicking on the “Media” tab.
They will also be able to browse other albums by going to the albums page. (On the forum site, there is a link in the black bar beside “Forums” to the albums.)

In order for users to create an album please follow the steps below.
1) Go to user profile page and click “Media”
2) Click Add Photos
3) Enter Photo Gallery Title in the first field
4) Click Upload or Select from Photo Album to add photos
5) Click Post
6) Once posted, the album will be created as a “Topic” on the albums page for the public to see. The topic title will be the “Photo Gallery Title” they created before uploading their photos.


To create this migration path we used vBulletin5’s default album structure. Unfortunately, it won’t work like the “PhotoPlog” but is an album/gallery component on the forum now.
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hearth insulation questions

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  • hearth insulation questions

    I have a 4" hearth slab and need to choise an insulation material

    will the vermiculite and concrete mix hold the weight of a pizza oven for all years that the oven will last, wont the cement fall apart from all the heat

    What about using a castable insulating concrete like castilite 22 or delta crete 25 under the oven floor

    can i insulate under just the floor and not under the first chain of bricks so that the weight of the oven is on the concrete and just the floor sits on the insulation

  • #2
    Re: hearth insulation questions

    The vermiculite concrete doesn't have any tensile strength to speak of, but it doesn't need it. It has more than enough compressive strength to hold the weight of the oven. As far as heat is concerned, it's partly dissipated on the far side of the brick from the fire.

    Most insulating castables are MUCH more expensive than the vermiculite/perlite mix. If you want to spend more money, and have better/thinner insulation go for the cal-sil or mineral wool boards.

    The insulation should completely envelope your oven. There's no need to build your soldier course on an uninsulated surface, it will just be a heat leak to slow your oven from getting up / keeping up to temperature.
    My geodesic oven project: part 1, part 2

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    • #3
      Re: hearth insulation questions

      I am also in NJ, I used a foot thick perlite mixture around oven and lean cement under hearth. I wish I would have used the insulating board offered here at forno. However the next day I am still at a solid 400 degrees great for cooking and roasting, so its holding the heat nicely
      John

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