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Insulation alternatives - 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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Insulation alternatives

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  • Insulation alternatives

    I guess the world is getting smaller. Yesterday I rec'd photos of a Pompeii oven in Sweden, and today I heard from a gentleman building a Pompeii oven in Tailand. It sounds like you can't find vermiculite there, so I wanted to ask if anyone has had experience using old-world insulators. I have heard that ash, or an ash and sand mix makes a good insulator for around the dome.

    Any thoughts on that?

    As an experiment, I covered my first precast oven in San Gimignano with sand, then an inexpensive insulation blanket -- with mixed results. Sand has a lot of thermal mass and it really heats up, so the oven was so-so at holding heat inside the chamber, and the stucco shell got hot.

    What are the properties of wood ash?

    Alf, you use sand in the large commercial bread ovens...right?

    Pizza Ovens
    Outdoor Fireplaces

  • #2
    Yep we use sand in the large commercial ovens we build for several reasons, 1) It is a good heat sink, is easy to come by and place on top of the ovens arch 2) Sand allows the oven arch to flex during odd commercial firings 3) We often have flues and water heating on top of these ovens and sand allows for movement and transfer heat efficiently.

    I wouldn’t say sand is a good insulator, however, that’s what folks used in the past. I have read that charcoal is a good insulating material along with crushed glass. One of the best insulating materials is still air of vacuum, so wool, straw, hay, bracken (one would have to check about combustion) shells from shellfish etc, or any natural material that will trap and hold air would be good

    One other good material if available would be polystyrene from packaging.