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New Oven Temps Not Hot Enough - Forno Bravo Forum: The Wood-Fired Oven Community

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New Forno Bravo Forum Feature

Forno Bravo Forum Community,

You will notice a new forum at the top of the main page called, "Ask Me Anything". This forum will be used for live one hour "Ask Me Anything" (AMA) sessions hosted by people who are knowledgeable in different areas pertaining to wood fired ovens. How it works:
- Each AMA will have a "sticky" thread where the community can post questions they would like answered during the live session. This will allow everyone to participate even if you can't be online for the live session. These questions will not be answered by the host until the live AMA; if you need an answer quickly, you should post it in the appropriate Forum area for the community to respond.
- Another thread will be posted for the live AMA. Registered users who are logged in during the live session can interact with the host by asking questions and receiving responses.
- The live thread will remain in the AMA forum to view after the session.

To kick off our AMA feature, we have invited author, chef and master bread maker and host of Pizza Quest, Peter Reinhart, to be our first host! Peter will be in the Forum on Monday, February 15th, from 7:00 - 8:00 pm EST. If you are unable to be online during the live session, you can post your questions in the sticky post. Peter will answer those questions during the live session on February 15th. You can view Peter's answers to your questions as well as what happened during the live session in the session thread.

We hope you enjoy this new feature! Please let us know if there is a topic that you'd like to have as an AMA and we'll look for a host!

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New Oven Temps Not Hot Enough

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  • New Oven Temps Not Hot Enough

    Hi folks. I have been firing my new oven up for about a week now. Thanks to all the folks on this forum for the advice and information along the way. My new oven is in my words "High Tech". I say that to my friends since this is my 3rd oven and is insulated below and above.

    But, here is my question.

    My other oven is built on the old design with vermiculate insulation below the concrete slab under the firebrick. I then have a brick oven dome covered in about 4-5" of concrete and then the whole thing is covered in loose vermiculite. I fire that thing up and it gets hot. So hot that if I do not give it time to cool down and put things in they will burn on the bottom.

    My new oven is built using the Pompei Plans with the concrete below, about 3" of vermicrete and then I have 2 inch fibreboard . On that I have the firebrick and dome. The dome is then covered in 2" thermal blanket and then another 4-5" of vermicrete. Insulate, Insulate.

    Today by 6 or 7th fire I logged it up. Flames were roaring out the front and up the flue. Top got white hot. About 2 hrs later I spread the coals over the brick. Then 5-10 mins later pushed them to the back and added a few sticks of wood to get the flames going. I measured the hearth temp to be only around 575. The dome around 850-875. The sides were around 980. Pizza cooked nice but took about 4-5 mins each.

    So is the oven still curing at this time? I probably finished the brick work and vemicrete about 3-4 weeks ago. I have been busy at work and just finally got around to putting on the steel roof. But all along the oven has been covered with 3 layers of plastic tarp. No water got on it. The fibreboard was just the same as the day i put it in. So it's not like I just finished it and fired it up. I have been slow going.

    I also noticed that some of the bricks on the hearth are catching my rake so the level is not 100%. I thought I had done a pretty good job at laying them. So I am not sure if the weight of the dome as caused some around the edges to compress the firbeboard and others are sitting hire or what the situation is. I will need to take a closer look once it cools down and I clean it out. I do remember the fibreboard made things so level that I did not even need the fireclay mixture to lay them in. I went right over top the fibreboard.

    Thanks, Tony.
    Check out my build at:
    http://www.fornobravo.com/forum/f8/t...uild-4678.html

  • #2
    Re: New Oven Temps Not Hot Enough

    Here is the link to my build. I need to take some new pics now that the brickwork outside is all grouted.

    http://www.fornobravo.com/forum/f8/t...uild-4678.html

    Thx
    Check out my build at:
    http://www.fornobravo.com/forum/f8/t...uild-4678.html

    Comment


    • #3
      Re: New Oven Temps Not Hot Enough

      Hi Tony,

      Just give her a little bit of time and a few more fires, and you are going to be thrilled. From your description, your oven will leap forward when you fire her. This happens all the time, where new ovens are still baking out the final little bits of moisture.

      Can you grind any spots in the cooking floor where the rake or peel catch?

      James
      Pizza Ovens
      Outdoor Fireplaces

      Comment


      • #4
        Re: New Oven Temps Not Hot Enough

        James you may be right. I fired it up last night. Got the dome over 1,000F and the hearth up around 750. Still hoping to get that Hearth up even higher. I have been busy so this was the first time since the original post to fire it up again. Form experience where should I be expecting to get the temps up to for dome, sides and hearth?

        Thx
        Check out my build at:
        http://www.fornobravo.com/forum/f8/t...uild-4678.html

        Comment

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