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Starting my barrel vault

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  • #16
    Re: Starting my barrel vault

    It looks to me like you have the front arch sitting on the hearth bricks, if this is so the thermal break wont really work as the heat will still get to the front arch via the hearth bricks.

    For a heat break to be effective it must be totally isolated.
    The English language was invented by people who couldnt spell.

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    • #17
      Re: Starting my barrel vault

      Al the front arch is on its own platform . The whole front ( red bricks ) at this point is seperated from the hearth . The only portion that I am thinking will be touching will be when I start the chimney . I have not seen a way to isolate that part yet . So what do you think about the perlcrete or is there something better that is readily available ? Thanks.
      My Oven Build
      http://www.fornobravo.com/forum/f6/s...ult-18532.html

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      • #18
        Re: Starting my barrel vault

        Pearlcrete is too crumbly, there is ceramic and fibreglass rope that is available, keep it in place with high temp silastic.

        I used insulating fire bricks in my flue for the heat break.
        The English language was invented by people who couldnt spell.

        My Build.

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        • #19
          Re: Starting my barrel vault

          Had a chance today to make a little more progress .
          My Oven Build
          http://www.fornobravo.com/forum/f6/s...ult-18532.html

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          • #20
            Re: Starting my barrel vault

            my first curing fire woo hoo !!!
            My Oven Build
            http://www.fornobravo.com/forum/f6/s...ult-18532.html

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            • #21
              Re: Starting my barrel vault

              here are a few more pics of the outside if anyone is interested.
              My Oven Build
              http://www.fornobravo.com/forum/f6/s...ult-18532.html

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              • #22
                Re: Starting my barrel vault

                Originally posted by jim81147 View Post
                here are a few more pics of the outside if anyone is interested.
                Great looking oven, and congratulations on the curing fires! I am right there with you at that stage. Also, for every reply, there are at least a hundred others who are very interested in your progress .

                Keep your pics and updates coming.
                Joe Watson " A year from now, you will wish that you had started today" My Build Album / My Build

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                • #23
                  Re: Starting my barrel vault

                  Got all the holes filled in the structure so now it was time to insulate . I put in 60 cubic feet of perlite ( 10 bags ) and this gave me , at the minimum insulation point 8 1/2 inches and at the maximum point 11 inches . I think that will work !!
                  My Oven Build
                  http://www.fornobravo.com/forum/f6/s...ult-18532.html

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                  • #24
                    Re: Starting my barrel vault

                    Let it snow , I am ready . That was the big push for me to get everything done to the point that it was weatherproof . I can still work on it as time and weather permits ( as you can see it still needs a ton of work ) but I dont have to worry about things getting wet or snowed on now .The roof jack for the chimney is at the fabricators now and should be done tomorrow . Most of the remaining work will probably be done next spring after worry of freezing , but I can start learning how to cook on this contraption soon !!
                    My Oven Build
                    http://www.fornobravo.com/forum/f6/s...ult-18532.html

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                    • #25
                      Re: Starting my barrel vault

                      Very nice and with that much insulation cooking in the winter will be easy. You will be able to cook for a week on one firing.

                      Great job.

                      Chip
                      Chip

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                      • #26
                        Re: Starting my barrel vault

                        well i have been doing curing fires over the last week . the one today got the back and side walls to 550 , the hearth to 400 and the dome to 750 . so is it time , after the oven cools down , to build a full on scary fire ? What temps should i be looking for? thanks.
                        My Oven Build
                        http://www.fornobravo.com/forum/f6/s...ult-18532.html

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                        • #27
                          Re: Starting my barrel vault

                          Originally posted by jim81147 View Post
                          so is it time , after the oven cools down , to build a full on scary fire ? What temps should i be looking for? thanks.
                          It sounds like you are good to go - try and melt brick Have you had the oven burn clean yet?
                          Check out my pictures here:
                          http://www.fornobravo.com/forum/f8/les-build-4207.html

                          If at first you don't succeed... Skydiving isn't for you.

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                          • #28
                            Re: Starting my barrel vault

                            I had a spot about 1 foot in diameter at the center top of the dome burn clean , but that is it . Should i have gotten it hotter?
                            My Oven Build
                            http://www.fornobravo.com/forum/f6/s...ult-18532.html

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                            • #29
                              Re: Starting my barrel vault

                              Jim, I didn't bother with curing. I am fortunate enough to live in an area that in mid-summer, it wouldn't change a thing (I had very little mortar to cure anyways).

                              If your oven started to clean, go for it next time. Taking your time curing is not a guaranty that you will not get cracks. I do not believe that any one that uses mortar doesn't have some crack(s)
                              Check out my pictures here:
                              http://www.fornobravo.com/forum/f8/les-build-4207.html

                              If at first you don't succeed... Skydiving isn't for you.

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                              • #30
                                Re: Starting my barrel vault

                                The only cracks I have are the ones I pre-engineered in the back and front of the oven. I fired my vault the next morning after laying up and every I time worked on it after, since it was cold out.

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