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build oven in winter? - 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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  • build oven in winter?

    I live just north of NYC, where it will soon get chilly at night. I intend to pour my hearth in about ten days, when it should stay above freezing at night. Can I work on the dome and the rest of it during the winter? Can you use mortar if it's above freezing during the day, but below at night? I hope I don't have to wait until April-May to eat my pizza.
    Here's mine:
    http://www.fornobravo.com/forum/f8/j...man-15992.html

  • #2
    Re: build oven in winter?

    Technically, you can build masonry in the winter. Practically, it would be tough for a homeowner.

    All your materials would need to be kept above freezing, the warmer the better. You would need to be able to be assured that any mortar that you used reached full set before it froze, which would be hard without tenting and external heat.

    The simple definition of when it is permissible is: 40 degrees and rising, with no freezing expected within 4 hours of completion. Again, that is assuming that you START with heated materials.

    Good luck!

    Comment


    • #3
      Re: build oven in winter?

      Hi Jim,

      Yes, you can build through the winter. And Tscarborough is correct that you will have a bit of extra work.

      The kicker is that you are working with cement. Cement cures (and gains it's strength) with a chemical reaction. The chemical reaction is activated by water. If the cement product (mortar, concrete, or what ever) freezes before it cures, the strength is gone; the stuff turns to dust.

      So, if you do place any cement stuff and you anticipate freezing temperatures, do something to keep the cement from freezing for at least three days. By the time three days has passed, the cement is 'dry' enough that it won't suffer from the freezing temperatures.

      I built during the spring, and we had some cold nights. I covered the wet cement with an old moving blanket (propped up to create some air space), a tarp and added a bit of heat from a work lamp - 100 watt incandescent bulb type work lamp.

      PhotoPlog - Hearth and Stand

      And this system worked fine.

      Good luck with your build, and keep moving! you'll be eating pizza before you know it!

      JED

      Comment


      • #4
        Re: build oven in winter?

        I built a Seattle oven through last winter. For example, I placed my keystone on Christmas and there was a really cold week in November for some reason. The way I kept my whole assembly warm (and visible given the dark high latitude winters) was with a halogen work lamp. I just kept it inside the dome turn on through the night after any evening when I laid bricks. When it was below freezing outside it was between 50 and 70F inside. I was quite pleased with the performance.

        Website: http://keithwiley.com
        WFO Webpage: http://keithwiley.com/brickPizzaOven.shtml
        Thread: http://www.fornobravo.com/forum/f21/...ttle-7878.html

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        • #5
          Re: build oven in winter?

          On the bright side, cement cures better in cool, (but not frosty), conditions. Hot summer days can also be a real nuisance when trying to work stucco or pour concrete.

          Comment


          • #6
            Re: build oven in winter?

            Kebwi-

            Thanks for the advice. I looked through all the build pics on your site - beautiful oven! If mine is 1/4th as carefully built, I'll call it a victory.
            Here's mine:
            http://www.fornobravo.com/forum/f8/j...man-15992.html

            Comment


            • #7
              Re: build oven in winter?

              Don't forget: this is supposed to be fun. Laying masonry once it gets cold sounds like an exercise in pain.
              My geodesic oven project: part 1, part 2

              Comment


              • #8
                Re: build oven in winter?

                Well, as it has been said, "no pain, no gain", or is that "no pain, no pain"?

                Comment

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