web analytics
Clay Oven floor - Forno Bravo Forum: The Wood-Fired Oven Community



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

Clay Oven floor

  • Filter
  • Time
  • Show
Clear All
new posts

  • Clay Oven floor

    Hi all
    Ok still trying to get materials. What a pain.

    I have been looking at a cob style oven I can get a good quality clay from a local source, sand is plentiful.

    Has anyone used a clay oven floor ? Do they hold up ?

    Do they need many firings to harden up ( vitrify )

    While asking questions can clay be used to make a chimmeny also Or should I use a piece of flue liner ?


  • #2
    Re: Clay Oven floor

    I built a cob oven with bench seats on the side. I used fire bricks on the floor and it works just fine- I used empty bottles and a cob mix under the bricks for under insulation also. I hope this helps you out.


    • #3
      Re: Clay Oven floor

      You won't get the oven hot enough to begin any vitrification. That starts to happen at about 900C The clay becomes permanent (won't turn back into mud if made wet) starting at 573 C You are unlikely to reach this temp on the floor and if you attempt it you are likely to create cracking as the clay is unstable at around these temps.and it would only be the surface that you would get hot enough. You would be far better off using something that has already been kiln fired. Firebricks are best, or if you want to save money, clay pavers or solid reds. An unfired mud floor will also be prone to lots of wear.
      Kindled with zeal and fired with passion.


      • #4
        Re: Clay Oven floor

        Thanks for the info.

        I finally found some fire brick at $2.80 each. So I bought 40 for the floor. Hi Temp Mortar and got some flue liner free.

        I ordered clay from company out of Medicine Hat, Alberta. They offer many clays so I told them what I was doing and they recommended a blue,green clay. $ 15.00 for 20 KG.

        I pour my lower base yesterday. !!!