web analytics
Clarification on 2G90 cooking floor - Forno Bravo Forum: The Wood-Fired Oven Community


1 of 3 < >

Forum Page Loading Response

Forum Members:

We have received feedback regarding recent issues with page loading response time. We believe the slow response issue stems from the analytics we added with the new Forum. We are in the process of reconfiguring those elements and, after an approximate 24-hour time period for the reconfiguration to run, we anticipate a return to normal page load times. Thank you for your patience!
2 of 3 < >


Hello, Forno Bravo Community Forum members.

As many may have noticed already, the Community Forum site was briefly down today. While working on scheduled routine maintenance, we encountered an error when trying to add a software update. As the site is now back up and running, some of you may notice that some recent data has been misplaced from November 10th up to today. We are currently working on resolving the issue. The forum has full operational capabilities and we encourage all forum members to continue actively posting in the threads.

We apologize for any inconvenience that this issue may have caused you. The Forno Bravo family values each and every member of our community. If you have any issues or concerns, please feel free to let us know on our issues thread here:


Thank you for understanding.
3 of 3 < >

Forno Bravo Forum Thread Message

Hello, Forno Bravo Community Forum Members!

The Forno Bravo team has heard the feedback in regards to the community forum. We wanted to take the time to re-enforce our commitment to a fully engaged Forum with professional moderation.

Our top priority as a company is to fix all forum errors and issues that you are experiencing. As we are swiftly working on these problems, we want to say that we highly value the Forum Bravo Community Forum and every single community forum member.

We have set up this thread so that every member can address any concerns, issues and questions about the forum. Please feel free to ask whatever you would like in regards to the forum; let us know what issues you are experiencing so we can work on resolving them as fast as possible. However, we stress that we would like constructive engagement, so please be specific about the issue you are experiencing.

Thank you for all of your patience and continued support.

Link to topic: http://www.fornobravo.com/community/...with-new-forum
See more
See less

Clarification on 2G90 cooking floor

  • Filter
  • Time
  • Show
Clear All
new posts

  • Clarification on 2G90 cooking floor

    I'm constructing the Casa 2G90 oven on a concrete slab in an indoor location.

    The "Installation and Operating Manual" specifies laying the cooking surface bricks on a "3/8" layer of fine sand using a notched trowel" and "butting the joints tightly together".

    However, the "Online Instructions" describe laying them loosely and using the refractory mortar to bed the surface with "a thin layer of refractory mortar using a 3/8" notched trowel."

    Furthermore, it instructs "Fill the joints between the cooking surface elements with refractory mortar."

    What is the proper 2G90 method?

    Using "fine sand", which I presume is common sand available locally, or using the mortar?

    Butt the brick elements tightly together, leaving a space around the outside near the oven wall, or take up the room by spacing them all equally?

    Fill the spaces with sand or mortar or just allow ashes to collect there?

  • #2
    Re: Clarification on 2G90 cooking floor

    I helped a friend install a CasaG90 in Canada this summer and we used sand between the insulation board and hearth "plates". We found that using moistened builder's sand (do use a notched trowel and don't just use beach sand) under the tiles allowed us to level them a lot more easily.

    My understanding is that when you are using bricks for the hearth, the sand is the way to go for two reasons; 1) if a brick is damaged it can easily be replaced--not realistic with the kit hearth pieces and 2) the sand allows some movement for expansion during firing but the mortar does not. I'd go with the sand again if I did another install. We butted the hearth pieces together as closely as we could and assumed it would be better to have a small gap between the outer dome pieces and the hearth floor.

    Also found out that when you place the outer formed pieces on the base, the weight and movement needed to get them in position can make you "lose your level" on the hearth tiles. It was nice to be able to tap & work them back into a relatively flat position with the sand underneath. After the dome and hearth were in place, we brushed sand in to partially fill around the outer edges. Ashes have completed the fill-in now and sealed off the sand from the pizza.
    Last edited by SableSprings; 12-17-2011, 05:07 PM.
    Mike Stansbury - The Traveling Loafer
    Roseburg, Oregon ( www.sablesprings.com )
    Photo Albums: http://www.fornobravo.com/community/...BForum_Gallery


    • #3
      Re: Clarification on 2G90 cooking floor

      What excellent and complete advice! Makes a lot of sense.

      Thank you for the timely response. I'm literally doing it right now and was going to have to wing it!


      • #4
        Re: Clarification on 2G90 cooking floor

        Well, it's done now. I set it up with the hearth plates on a bed of sand, level and as close together as possible. Since the oven is inside an enclosure, it got tricky trying to stand around the edges of the concrete hearth on my toes. I had to use a block and tackle to pull up the pieces to the hearth height and then woof them into position by myself. The hearth plates got a little disturbed while setting the three dome pieces in place, but I was able to reach through the opening using an aluminum pry bar and tap and lever them pretty much back into position.

        There is about a half inch gap between the edges of the hearth bricks and the shell of the dome. I didn't want my sand bed to squeeze up in there and allow the plates to become uneven, so I brushed sand into the gaps (very fine white silica sand). Lots of tapping everywhere with a rubber mallet and the hearth plates seemed to firm up some and become more stable as the sand settled. After I brushed some sand into the very narrow gaps between the plates, nearly all the movement stopped and I'm pretty happy with it.

        I'm hoping that the very fine sand has enough give so it won't lock up when the plates and dome start expanding with heat. The 100# bag of silica sand was about USD8.00 or so at the orange box store.


        • #5
          Re: Clarification on 2G90 cooking floor

          Great to hear you got the floor set and dome pieces in place. I'm impressed you got the dome pieces set by yourself...there were two of us and we really could have used a third person. I'm sure the sand will be fine and once you start firing it up, the ash will fill-in & make the "gaps" invisible. I suspect that the sand will take/make the expansion during firing a "no issue" issue. Congrats & welcome to the next phase...actually using the oven!
          Mike Stansbury - The Traveling Loafer
          Roseburg, Oregon ( www.sablesprings.com )
          Photo Albums: http://www.fornobravo.com/community/...BForum_Gallery


          • #6
            Re: Clarification on 2G90 cooking floor

            Seedy barley loaves? Bleu Cheese Souffle?

            OMG :-)

            It's all I can do to wait a week before firing and I don't even have the pipe on yet.


            • #7
              Re: Clarification on 2G90 cooking floor


              Glad you hear your oven is coming along. We look forward to photos once it is completed.

              You can add fine sand around the edges of the cooking floor to fill the gap or over time it will fill up with ashes and the gap will not be noticeable.

              Please feel free to contact by email at Heidi@fornobravo.com or by phone 1-800-407-5119 ext 14, if you have any questions.