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  • Dogshark58 Build

    For a setup like yours, consider using durable materials like stainless steel for appliances and countertops. Also, ensure you have proper ventilation and weather protection, especially for your barbecue and wok burner. For the seating area, comfortable and weather-resistant furniture will enhance the overall experience. You might also want to integrate some lighting and heating options to make the space usable year-round.
    Check us out at Jonesin' for Pizza and Facebook

  • #2
    You can use duct tape to help control the cut edges (it's difficult to paint Redgard on a crumbly, dry edge). In wet climates, #1 option to keep oven insulation dry is to build an enclosure/cover over the oven. Not always possible or desired. #2 option, Currently, we advise 3-5 weep holes through the support slab and then laying porcelain/glass mosaic tile sheets (mesh side up) on top of that slab. Your oven base insulation board is then placed on top of the tiles. Building your oven on top of this system allows moisture an escape path as well as an initial barrier to moisture seeping or wicking into the board. Hope that makes sense. If you can, putting a slight dome to your slab pour will encourage water to flow away instead of pooling on top.

    Lots of advantages to the covered patio enclosure approach... it's nice to be able to use the oven year round!
    Last edited by SableSprings; 07-17-2024, 08:40 AM.
    Mike Stansbury - The Traveling Loafer
    Roseburg, Oregon

    FB Forum: The Dragonfly Den build thread
    Available only if you're logged in = FB Photo Albums-Select media tab on profile
    Blog: http://thetravelingloafer.blogspot.com/

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    • #3
      Two more questions that came up during preparations for the work after:
      • Under which layers should I put the mosaic tiles? as they are there to protect 'wicking' insulation materials from water, I'm assuming they should also be under the fire blankets and possibly also the vermiculite stucco?
      • I did some calculations on the side thrust of the chimney, and were the side walls freestanding, they would definitely topple. However, they're partly embedded in the stucco, and will also be attached to the stone floor (which consists of loose stones basically). I'll probably put in a buttress, as depicted in the picture below, but would welcome any comments/remarks about people's experience with similar arches.
      Ie. with some of the casted chimneys I would imagine that they also take up the side thrust, that might be a solution I could also consider. The buttress I'm currently planning is also only supporting the side walls on the 'back'. I'm assuming that the walls are sufficiently short/stiff that this will basically support the whole sidewall, but also here: any experience/knowledge is welcome!
      Only dead fish go with the flow

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      • #4
        The mosaic tiles are only intended for underneath the oven, separating the concrete top slab from the bottom insulation (board or insulated concrete). Most builders consider adding a small vent for the upper dome that leads into the chimney area or is placed near the top of the oven giving any steam/moisture an escape route. This vent doesn't need to be large, just so it penetrates any outside shell of the oven and doesn't allow water a path in. In the US, there are a variety of small vented plugs used in the automobile industry called Breather Caps that work well for our oven builds. You can also make one out of some piping connections to simply provide a path out, but not in (upside down "U" shape with a longer end reaching into the insulation layer).
        Last edited by SableSprings; 07-17-2024, 02:39 PM.
        Mike Stansbury - The Traveling Loafer
        Roseburg, Oregon

        FB Forum: The Dragonfly Den build thread
        Available only if you're logged in = FB Photo Albums-Select media tab on profile
        Blog: http://thetravelingloafer.blogspot.com/

        Comment


        • #5
          Russell, reading what you guys have done makes that clear to me now. More wary of YT now haha

          Mike, it was a great explanation. The link you sent was also particularly good. Some golden nuggets of information from you all

          The only downside will be that the weather in the UK is let's say unpredictable sometimes, so will mean I won't always be out in the garden firing the thing up!

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          • #6
            Well my progress has slowed to a crawl now that the oven is functional. It doesn't help that then we had my sons birthday a holiday and then my birthday. So it has been a busy few weeks any way. I had my chef friend over on Sunday and we cooked up another batch of the salt and vinegar chicken wings. I think this batch was even better than the first. We also did a pan of roasted baby potatoes and and some Tomahawk's. I have been dreaming of making some of these again for like the last 5 plus years. They were probably on the order of 2.5" thick and weighed roughly 2.5# each. They tasted just as awesome as I remember from last time. What I had forgotten about is the mess it makes. I only did one last time so maybe that has something to do with it,but at one point I had the entire floor of the oven involved in a grease fire. Other than that it was great. I will need to pull the coles out to the entry next time to burn the rest of the grease off but that is what these ovens are for. I am super happy with the performance of the oven so far. It has worked as expected or better.

            I also finally got around to insulation of the Govee string light 2 that I bought a few weeks ago. I am truly impressed with how much light they put out. In white mode you could probably read at night on the deck. They also light up most of the yard. In color mode they have lots of very bright and intense colors. The app controller works great. So far I would definitely recommend them and once the pavilion cover is built I may consider getting more of them.

            Randy
            Attached Files

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            • #7
              Why don't you look a the build thread by Nick JC, he did a really nice cast oven and is from the UK. His build my give you some insight to design, materials, etc for the UK.
              Russell
              Google Photo Album [https://photos.google.com/share/AF1Q...JneXVXc3hVNHd3/]

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              • #8
                Originally posted by SableSprings View Post
                The mosaic tiles are only intended for underneath the oven, separating the concrete top slab from the bottom insulation (board or insulated concrete).
                Thanks for your clarification SableSprings, I do see that the mosaic tiles are mostly put under insulation boards. My understanding is that it is to prevent any direct wetting of them: the water can go around the mosaic tiles to the weep holes. However, I don't fully get the rationale for doing it only there? As all insulation materials would love to wick up that water, also the blankets and vermicrete layers would soak it up very fast right? Or is your explanation that they dry out much faster due to the vent port? Would there be any downside to extending the tiles under the blankets and vermicrete?
                Only dead fish go with the flow

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                • #9
                  The vent on the dome is just not for drying ceramic/pcrete on dome. Water has a way if getting in the ovens especially those oven open to the elements. So if the blanket or the pcrete gets wet on the dome and you heat the dome up during cooking, physical water when it sublimates to vapor, increases in volume by1500-1600 times which can increase the pressure between the dome and the outer stucco layer. Unless there is a way to relieve this potential pressure their is the risk that this internal pressure could crack the final or outside render. A vent provides pressure relief.
                  Russell
                  Google Photo Album [https://photos.google.com/share/AF1Q...JneXVXc3hVNHd3/]

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                  • #10
                    Because the top of the dome gets hot first, the moisture present there is also driven out first.,as moisture will always travel away from the heat source. For this reason, the direction of moisture travel is towards the base of the dome, so any venting is better placed at the bottom. This situation can also be assisted by steam pressure build up in the upper part of the insulation space. The accompanying drawing explains this process.
                    Alternatively if you are still keen to provide a vent in the upper section of the insulation space, some holes made in the base of the flue pipe that sits in the insulation space, can allow moisture to escape into the flue pipe and exit there (second drawing)
                    Either of these solutions remove an exposed breather at the top of the dome's exterior.

                    Click image for larger version  Name:	IMG_1040.jpg Views:	0 Size:	82.1 KB ID:	459973
                    Attached Files
                    Last edited by david s; 07-18-2024, 03:19 PM.
                    Kindled with zeal and fired with passion.

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                    • #11
                      Hello all!

                      I've been building an oven using Alan Scott's Bread Builders, and ready to set my chimney. I plan to use an 8" square clay flue and surround it with common red brick. Here's the question: after seeing the flue pipe with refractory mortar, can I use standard type S mortar modified with some fireclay for the brick work? I plan to leave a 1/2" air gap between the flue line and the brickwork. Also, would it be out of the question to use structural bricks (with holes) for the chimney brick as opposed to solid reds? Thanks for the help! I am trying to avoid buying more of the expensive refractory mortar.

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                      • #12
                        Do you know how I can find the thread fo Nick JC? Unable to find where I can search for it.....

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                        • #13
                          Russell, found it. Will have a look. Thanks!

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                          • #14
                            Moving all individual threads to this thread
                            Russell
                            Google Photo Album [https://photos.google.com/share/AF1Q...JneXVXc3hVNHd3/]

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                            • #15
                              Originally posted by david s View Post
                              Because the top of the dome gets hot first, the moisture present there is also driven out first.,as moisture will always travel away from the heat source. For this reason, the direction of moisture travel is towards the base of the dome, so any venting is better placed at the bottom. This situation can also be assisted by steam pressure build up in the upper part of the insulation space. The accompanying drawing explains this process.
                              Alternatively if you are still keen to provide a vent in the upper section of the insulation space, some holes made in the base of the flue pipe that sits in the insulation space, can allow moisture to escape into the flue pipe and exit there (second drawing)
                              Either of these solutions remove an exposed breather at the top of the dome's exterior.

                              Click image for larger version Name:	IMG_1040.jpg Views:	0 Size:	82.1 KB ID:	459973
                              Something seems to have gone wrong with this thread? Some of the replies belong in my build thread.
                              UtahBeehiver could you move replies 3,4,8,9,10 in this thread back to mine if possible?
                              Only dead fish go with the flow

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