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Flue mortar - solution for too wide mortar joints? - 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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Dome Installation Video - Casa / Premio / Modena


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.


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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Flue mortar - solution for too wide mortar joints?

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  • Flue mortar - solution for too wide mortar joints?

    I came back from the brickyard with castable refractory cement to mortar my firebricks. It didn't look right - had aggregate in it. So I called the manufacturer and learned what I feared - no good for mortar joints.

    After some conversation where they assured me the 50 pound buckets of pre-mixedrefractory mortar I had been using really weren't right for the job either. Refractory mortar shrinks, they explained.

    Instead they suggested something they're selling as flue mortar - ALSEY Flue-Set Non-Water Soluble Refractory Mortar to be specific. They said it is harder to work with, but is good for filling larger voids, like untapered arch bricks, plus its OK exposed to the weather after 24 hours.

    I'll buy a 50 pound bag (over $100!) but wondered if others have had experience with it?

  • #2
    Re: Flue mortar - solution for too wide mortar joints?

    There's a few references to the stuff here in the forum:


    Nothing like the hundreds of cites for the more common mortar choices.
    My geodesic oven project: part 1, part 2


    • #3
      Re: Flue mortar - solution for too wide mortar joints?

      I can tell you that I purchased at least 3 50 pound buckets of premixed, and a bag of dry stuff, then switched to the homebrew recipe listed on this site, and was more satisfied with the home brew, and with what I have left over from the 20 bucks for the homebrew, I probably could build a whole extra oven. Spend the 20 bucks on the lime, type S portland cement, fine sand and firemortar. Mix it up and play with it. Easy to work with, and has a great track record here on this site. As I look back over time, I would guess that hundreds of builders of ovens here have used it, and years later still report great results. Speaks for itself.

      Good Luck