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Hearth insulation. Vermiculite v pumice - Forno Bravo Forum: The Wood-Fired Oven Community



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. Vermiculite v pumice

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  • Hearth insulation. Vermiculite v pumice

    Hi there everyone, I have just found out about this site and have now decided to change my plans for a pizza oven to on of these ones. I have already built the base so now have to look at extra insulation in the hearth. In New Zealand fire bricks and vermiculite are pretty expensive $7 - $8 per brick and $10 for 5 litres of vermiculite. Has any one ever used pumice and concrete in the hearth instead of vermiculite? Would the thermal value be reduced too much?
    Look forward hearing your thoughts.


  • #2
    Re: Hearth insulation. Vermiculite v pumice

    Pumice works, the ancient romans used it, it's way better than some of the workarounds like sand or broken glass. You may need more than the four inches you need for vermiculite or perlite.

    8 dollars for a one dollar firebrick? What are they doing, shipping them by parcel post?
    My geodesic oven project: part 1, part 2


    • #3
      Re: Hearth insulation. Vermiculite v pumice

      Check for perlite. It does as well as vermiculite.


      • #4
        Re: Hearth insulation. Vermiculite v pumice

        Hi Kris

        I am from New Zealand and also in the process of building an oven. I managed to pick up 100 litre bags a vermiculite from a garden supply off the internet for around $60.00 - do a search and find the cheapest. Also using fire bricks from placemakers for around $6 each after getting a discount for bulk purchase. Unfortunately we do seem to be paying way too much for bricks in New Zealand compared to others on this site.