gb
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Posts: 9
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Post by gb on May 16, 2012 8:23:55 GMT
I think castable cement would break up, especially when it would have to be such a thin layer. I know zilch about kiln shelves, will explore this possibility, but of course would dearly love to be able to just repair the current floor. Thank you for the idea. would castable refractory cement make a suitable floor? If so you could do a thin skim layer. also what about kiln shelves? You can get these thinner, use them as floor tiles?
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Post by webbaldo on May 16, 2012 11:02:05 GMT
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Post by webbaldo on May 16, 2012 11:09:40 GMT
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gb
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Posts: 9
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Post by gb on May 21, 2012 19:47:25 GMT
Well, basically I need to figure out how they make those silicon carbide shelves, source the materials (silicon carbide is easy) it's the "glue" thats used to create the mix that's I need. I've spent hours and hours searching for what it is, so far to no effect. I really don't want to use tiles, I find that pizza tends to stick to them, but on the silicon they tend to slide rather than stick. Thanks for the ideas though.
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Post by cannyfradock on May 21, 2012 20:15:13 GMT
gb
....Still following your thread with interest, but can't offer much help. The latest suggestions sound good but are beyond my experience. I would still go for a 1" refractory tile, as long as you have some sort of insulation beneath them.....once they reach temp. they won't stick.
I am soon aquiring a quantity of 1 1/2" ....8" X 8" storage heater tiles which you would be welcome to have for your floor.......if you want. The only thing is I live in S.Wales.....not sure where your corner of the world is.......also I would want a four pack of bow.....it's just an option !
Terry
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Post by muddy4x4 on May 21, 2012 21:04:11 GMT
Have a look for tiles made of corderite. search it on Google. I think you can get them very thin. I plan on having them on the floor of my next oven !
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Post by snapdragon on May 28, 2012 12:14:54 GMT
Our problem is exactly the same, I thinks part of the reason is that the purpose built (bernito) trolley is just a frame which the oven sits on, naturally when the oven heats it expands and is constrained by the metal frame leading to heave as the bottom of the oven expands; (although merely a blonde even I understand that different materials expand at different rates; pity I didn't think about that before, but surely purpose built means fit for purpose also]. I don't hold out much hope for any help from mr murphy. We are considering building a brick base incorporating thermal blocks, trying to remove the base of the bernito (oven not person tempting though that may be!!!) and setting it onto the new base sealing with fireclay, and patching up the entrance as best we can; should we use firebricks on the base, if so would we need to seat them onto fireclay? Do you think this would work?
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Post by webbaldo on May 28, 2012 13:52:22 GMT
Our problem is exactly the same, I thinks part of the reason is that the purpose built (bernito) trolley is just a frame which the oven sits on, naturally when the oven heats it expands and is constrained by the metal frame leading to heave as the bottom of the oven expands; (although merely a blonde even I understand that different materials expand at different rates; pity I didn't think about that before, but surely purpose built means fit for purpose also]. I don't hold out much hope for any help from mr murphy. We are considering building a brick base incorporating thermal blocks, trying to remove the base of the bernito (oven not person tempting though that may be!!!) and setting it onto the new base sealing with fireclay, and patching up the entrance as best we can; should we use firebricks on the base, if so would we need to seat them onto fireclay? Do you think this would work? I think, as long as your ultra careful, cutting the base off the bernito with a 1mm angle grinder cutting disc would work quite well. 1MM discs cut through metal like butter, failing that one of those diamond stone discs?. Thinner the better as this will reduce vibration/risk of the dome cracking
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Post by cannyfradock on May 28, 2012 14:54:36 GMT
It really depresses me reading some of these posts, especially if I've had to censor a part of some peoples posts. You should be enjoying hosting pizza evenings...NOW...not worrying how to repair something you've already paid for.
....back to reality. Good advice from webbaldo, although a 9" angle grinder with a either a carbon or diamond disc may be needed.
A fire-brick hearth is always the best option which needs to be bedded on thermolite blocks/vermecrete with a mix of fire clay powder and sand.
Not sure of your location but if it wasn't more than a 2 1/2 hour drive I could give you some on the spot first hand advice......(just cover my petrol cost).....please PM me if you want to go down this route.
Terry
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Post by snapdragon on May 28, 2012 15:12:43 GMT
The base is already falling to bits, it looks as if it has heaved due to constriction when heat expanded it. The entrance is less of a problem . but the dome looks fine (probably because it has greater strength than the base. I have been on the vitcas website so I think we shall build a base (well he builds I design and point( and cook!!!!)) using ordinary bricks and then use one of their heatproof concrete slabs possibly some heatproof foam, or should we bed the frebricks onto a mix the way you would if you were laying slabs, and how thick should the firebricks be?
We bought the bernito beacuse we thought it would be an easier option, now my brain hurts from the application of physics and engineering. It just goes to show that easy is seldom best, but hey ho.
Made great garlic bread in our trusty mexican chimenea though, also used it to hot smoke fish with the aid of two flowerpots.
Any help re oven creation gratefully received.
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Post by snapdragon on May 28, 2012 15:28:26 GMT
should be re oven re-creation really!!! would we need to seal the sides of the base with firecement or would we have to use a fireproof rope/cors underneath to account for any unevenness? The internet is a wonderful thing, you can find all sorts of things you never knew existed but now you can't live without!!
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Post by jpmort on Jun 3, 2012 19:43:46 GMT
Hi there, thats a bad problem with your floor. I have not had that problem with my Bernito, and all I can do is to give some advice from what I have learned. 1. I know you say you have contacted Bernard, but I suggest you contact him and offer to bring the oven to his workshop. Do you live near Telford? He would be able to repair/ replace your floor for you. Especially as I do not think you have had it too long. 2. The material is silicon carbide. I am not sure about repairing it, as I do not think that repairing something like that is easy. The overall skin is fiberglass. My only suggestion is that you place the whole oven on a base, maybe of plywood. It depends how hot the outer floor gets. This is based on the theory that the oven will continue to work if the base is fully supported. 3. The oven itself, including the base, does not take to getting wet. Even condensation for the start of a firing will start to degrade the entrance. 4. You have already tried refractory tiles. I have heard that they must be unglazed ones. They will crack, but they should still work even though they crack. 5. Lastly, you could place cordierite tiles ontop of the floor. They are what pizza stones are made from, and some are lightweight. When you do that you protect the original floor. Bernard sells the tiles, or you can source them from elsewhere. The thickness is only about 1cm.
I really hope you manage to sort it out. John
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Post by bladesman on Jun 3, 2012 21:38:03 GMT
I am probably the only person reading this thinking about the Sale of Goods Act and goods being of satisfactory quality (s14 if you really want to know)........
Whilst I appreciate the invidious position of the moderators in ensuring fairness, the simple fact is that this alleged poor quality floor should not occur.
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Post by cannyfradock on Jun 5, 2012 13:48:30 GMT
Bladesman
You are spot on with your post !!!
Terry
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Post by bladesman on Jun 5, 2012 22:18:39 GMT
Thanks Terry.
It seems to me (possibly naively) that if something is not up to the job we should know about it.
At least with the experience of the board a workable solution will be obtained but the manufacturer should first be given the opportunity to rectify the problem
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