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Bend, Oregon USA 29" interior Floor

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  • Bend, Oregon USA 29" interior Floor

    Well I am starting my Thread with the Masters of Pizza Ovens that have completed ovens

    I am a rookie and never built a oven but I am stepping in the mud....with my friend and Master Brick layer Serigo................

    This is our First Outdoor Kitchen with a Modular Refractory Oven Installation

    http://www.fornobravo.com/forum/f35/...gon-11041.html


    We have studied all of the greatest builders and came up with a few ideas of our own. I know we could do better but did not have enough money to fly all you great builders out to Bend, Oregon

    We are going to try to make this structurely sound so it will not fall apart....I will explain some of my structurely items to all if asked

    Here is my oven

    29" floor
    14" Dome Height
    7.75" Door Height
    18" Door Width

    ( I left some of my measurements at the warehouse, So I will fill them in and edit this post tomorrow)

    We are using Fire brick
    Mortar is 2 #30 silica sand 1 1/2 fire clay 1 portland cement 1 lime...Poor mans Mix

    Floor is vermiculite 8 to 1

    8" Chimney

    We built it in a 42 by 50 inch frame made out of 3 x 3 inch angle iron with 3 in flat stock as supports under the oven.......
    Last edited by 100million; 03-31-2010, 05:27 PM.

  • #2
    Re: Bend, Oregon USA 29" interior Floor

    Well I just put in my Keystone in the top of the dome.

    I am going to apply some 16 gauge chicken fencing to strengthen the dome and enclosure ( this should at like rebar to keep the cracking to a minimal and the brick seperating at the joints ) then I am going to put a skin coat just covering the 16 gauge wire.

    What I want to know how long should i let it dry after this step before I start the first fire?

    I will post more pictures tomorrow of what it looks like.

    Any ideas is always nice to hear from the master builders.


    Thanks

    Chris
    Last edited by 100million; 03-24-2010, 10:35 PM.

    Comment


    • #3
      Re: Bend, Oregon USA 29" interior Floor

      Not a master builder yet, I just finished digging my foundation. However, I was wondering why you did not include a reveal for a door? Do you plan on using your oven for pizza's only and not for any other baking?

      Comment


      • #4
        Re: Bend, Oregon USA 29" interior Floor

        Mr Gdest

        I plan to use it for pizza only and if i was going to make bread or something i will make a door that slides in. But I only make pizza with it and if you look at my measurements you will see that the opening is not that tall

        Chris
        Last edited by 100million; 03-25-2010, 12:43 PM.

        Comment


        • #5
          Re: Bend, Oregon USA 29" interior Floor

          Ok

          Here is where I am at...

          I have add more pictures for all to see

          I have add the 16 gauge chicken fence to add structure to the oven
          I am going to add a thin layer of Poormans high temp mortar to cover up the chicken wire
          Then I am going to add 2 " of ceramic blanket then Alum wrap then chicken wire.
          Then I am going to cover it with a stucco coat


          Does anyone of the master builders or WFO freinds have any ideas?

          Chris

          Comment


          • #6
            Re: Bend, Oregon USA 29" interior Floor

            Chris,
            Looks good! I have a question is there a reason you located the tension cable at the bottom of the soldier course? I would have thought it would have gone at the top. Your WFO is the first I have seen with such a tension cable although you are obviously aware that large domes (not WFOs) have such a tension device usually a chain. It will be interesting to see if there is any problems relating to differential expansion of the cable when it is heated.

            Also it appears the entire WFO is constructed on a large plate of steel, is that correct? Looks like you have built the WFO so a forklift can easily transport the finished oven. Do you anticipate any issue with heat transfer thru the eyebolts?

            I'm impressed with your construction. Your question regarding how long to wait before the first fire seems to be going unanswered. I would think that a search of the forum would yield something, I know it has been asked before.

            Bests,
            Wiley

            Comment


            • #7
              Re: Bend, Oregon USA 29" interior Floor

              Originally posted by Wiley View Post
              Chris,
              Looks good! I have a question is there a reason you located the tension cable at the bottom of the soldier course? I would have thought it would have gone at the top. Your WFO is the first I have seen with such a tension cable although you are obviously aware that large domes (not WFOs) have such a tension device usually a chain. It will be interesting to see if there is any problems relating to differential expansion of the cable when it is heated.
              1. I made the cable system because....I am building the oven structural sound. This is becasue of portability. That is way I have a 16 gauge wire mesh acting as rebar. This is to help all the brick to not seperate.

              2. I dont see a problem with heat transfered becasue metal expands when heated

              Originally posted by Wiley View Post
              Also it appears the entire WFO is constructed on a large plate of steel, is that correct? Looks like you have built the WFO so a forklift can easily transport the finished oven. Do you anticipate any issue with heat transfer thru the eyebolts?
              1. I dont see a problem on melting or heat transfer. Because when metal gets hot it expands
              Most steel has other metals added to tune its properties, like strength, corrosion resistance, or ease of fabrication. Steel is just the element iron that has been processed to control the amount of carbon. Iron, out of the ground, melts at around 1510 degrees C (2750?F). Steel often melts at around 1370 degrees C (2500?F).
              2. Yes it is made in my warehouse on pallets so my forklift can pick it up ( it is warm in side )

              Originally posted by Wiley View Post
              I'm impressed with your construction. Your question regarding how long to wait before the first fire seems to be going unanswered. I would think that a search of the forum would yield something, I know it has been asked before.

              Bests,
              Wiley
              If you have any other questions ...feel free to ask

              If all goes well this will be the FIRST WFO of its kind

              Chris

              Comment


              • #8
                Re: Bend, Oregon USA 29" interior Floor

                Your oven is very similar to mine. I built a 30 inch, I've got a lower dome and a higher soldier course, but it is pretty similar. I also abutted my dome with stainless cable, but I did three wraps around top, middle, and bottom of the soldier course all anchored to a welded angle iron door frame. I haven't had any problem with the metal, the difference of expansion does not seem to be an issue nor does heat transfer. I also built my own so it can be picked up by a fork lift, although that will never happen. Why? Cause it is too small!!!! I love it and it serves it's purpose fine and cooks a mean pie, but I long for a much bigger oven, managing things in this one are just more of a pain then they need to be due to size. Hopefully the things that bother me don't bother you so your work on making it movable are not a waste.

                Comment


                • #9
                  Re: Bend, Oregon USA 29" interior Floor

                  Originally posted by shuboyje View Post
                  Your oven is very similar to mine. I built a 30 inch, I've got a lower dome and a higher soldier course, but it is pretty similar. I also abutted my dome with stainless cable, but I did three wraps around top, middle, and bottom of the soldier course all anchored to a welded angle iron door frame. I haven't had any problem with the metal, the difference of expansion does not seem to be an issue nor does heat transfer. I also built my own so it can be picked up by a fork lift, although that will never happen. Why? Cause it is too small!!!! I love it and it serves it's purpose fine and cooks a mean pie, but I long for a much bigger oven, managing things in this one are just more of a pain then they need to be due to size. Hopefully the things that bother me don't bother you so your work on making it movable are not a waste.
                  Can you send some pictures of your project to completion?

                  Comment


                  • #10
                    Re: Bend, Oregon USA 29" interior Floor

                    Well

                    We are on to the next stage

                    I skim coated the wire mesh and let dry for 5 days.

                    I hooked up a propane burner to cure the Oven

                    We are going to follow the direction but do this with propane.

                    Day 1. Maintain a fire temperature of 300?F throughout the
                    day and as long as possible into the evening. If you cannot
                    continually run a 300?F for at least six hours, repeat step 1
                    for a second day before moving on to Day 2.
                    Day 2. Repeat at 350?F.
                    Important Note. While it is difficult to maintain consistent,
                    low temperature fires, it is critical for proper curing that you
                    do not go above these temperatures during the first two
                    days, or a total of 16 hours.
                    Day 3. Repeat at 400?F.
                    Day 4. Repeat at 450?F.
                    Day 5. Repeat at 500?F.
                    Close the oven door every evening to preserve dryness and
                    heat.

                    After Day 5 we are going to fill any cracks ( knock on wood ) then 2-3 inch of ceramic blankets, then alum foil then chicken wire and then recoat with about 1 inch or mortar then slick it with smooth stucco then waterproof it

                    IF anyone has any ideas I would love to hear from you

                    Thanks all for all the help so far

                    Chris

                    Comment


                    • #11
                      Re: Bend, Oregon USA 29" interior Floor

                      Looks great Chris. I recommend using Dryvit for the stucco. It's an acrylic base and it is water proof. It also comes in any color you want.

                      Les...
                      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.

                      Comment


                      • #12
                        Re: Bend, Oregon USA 29" interior Floor

                        Well 2nd day curing oven
                        8 hours each day
                        At the end of the day these are the temps

                        Outside of skim coat 135 F
                        Ceiling inside 345 F
                        Side walls 225 F
                        Floor 185 F

                        Should I Move on the the 400F Tomorrow????? for 8 more hours?

                        Comment


                        • #13
                          Re: Bend, Oregon USA 29" interior Floor

                          Well another day heating and curing the oven

                          Floor 285
                          Walls 363
                          Ceiling 428
                          Outside 164

                          Everything looks find so far

                          I think I will be installing the Ceramic Blanket chicken wire and skim coat Saturday

                          I will like you all know what it looks like with more pictures to follow

                          Thanks

                          Chris

                          Still waiting for some of the old timer to tell me the pro's and con's of my oven

                          Comment


                          • #14
                            Re: Bend, Oregon USA 29" interior Floor

                            Still waiting for some of the old timer to tell me the pro's and con's of my oven
                            The only thing I would do differently is to make a larger flue transition, to prevent smoke coming out the front on startup. Having a hole in your entry the same size as your flue isn't the best, but once the fire is going strong it should draw fine.

                            Good looking build.
                            My geodesic oven project: part 1, part 2

                            Comment


                            • #15
                              Re: Bend, Oregon USA 29" interior Floor

                              Originally posted by dmun View Post
                              The only thing I would do differently is to make a larger flue transition, to prevent smoke coming out the front on startup. Having a hole in your entry the same size as your flue isn't the best, but once the fire is going strong it should draw fine.

                              Good looking build.
                              I have a 6 by 9 flue and 6 inch interior chimney....What should i have?

                              Thanks for your comment Dmun I am learning and want to know more ....So any comment is appreciated....

                              Chris

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