ceramic tile

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John T
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ceramic tile

Post by John T » December 11th, 2016, 4:20 pm

Has anyone tried ceramic tile to insulate a firebox or the bottom of a cook chamber. Ill be getting a used dirty smoker this week i can use to test my theory,but if it has been done it might save some time .If it explodes i got to scrub it out good anyway.



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Big T
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Re: ceramic tile

Post by Big T » December 11th, 2016, 7:48 pm

I've seen a few posts about it over the last couple of years but I'm not sure if anyone ever went through with it. I don't have any personal experience with ceramic tile but I believe there's a few egg type grills built from ceramic. They are a lot thicker than tile so I'm sure that helps out with it not exploding.


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John T
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Re: ceramic tile

Post by John T » December 13th, 2016, 10:05 am

Off to lows to buy some tile . I think i saw some big thick red tile



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Re: ceramic tile

Post by temurf » December 13th, 2016, 4:53 pm

Keep us posted. I would like to know how this works out.


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Re: ceramic tile

Post by Squiggle » December 14th, 2016, 1:25 am

:yth:


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John T
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Re: ceramic tile

Post by John T » December 15th, 2016, 9:00 am

NO NO NOOOO , i would have to call it explosive splintering . In the cook chamber cracking when cooling or heating . in the fire box Un even heating { like poring in a chimney half full of lit] sent slivers every where quick .



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Re: ceramic tile

Post by BitBucket » December 15th, 2016, 3:33 pm

Oh man fire science classes from 20 years ago coming back to me.

I'd want to spend quite a while considering how to manage water absorbed by the ceramic, especially in the firebox. Using glazed tile might work, or picking a tile that doesn't absorb water (if they exist), but even then what you use to set the tile as grout or whatever would probably still be porous.

Setting aside expansion and contraction of the steel being a different rate from the ceramic causing cracking,I guess my questions are about the retention of water, being a byproduct of combustion and being retained in the pores of the ceramic tile and grout (if any).

Steam takes up 1700 times the volume of the liquid form of water, so I would think chipping/shattering may actually be trapped water assuming its vapor state and suddenly not fitting in the tiny space it was in a moment before (which may explain the phenomena John T mentioned).

Worst case If you had a puddle on the bottom of the firebox underneath the tile, if it were to vaporize all at once it might not only break your tile but might blow embers out every opening or worse (and ironically put your fire out).

Setting aside the volume differential of steam, other physics of water come into play. Latent heat of vaporization (the additional amount of energy it takes to cause water to phase change from liquid to vapor) slows down the rate your cooker will heat up. If you have lots of moisture from condensation or even plain old humidity soaked in, it might take quite a while to drive that out.

All that said, I can't necessarily reconcile the ceramic egg with these concepts. I have one and it's never chipped and is unglazed inside, even when dumping a chimney of coals in at -16 F. I'm guessing the engineering on that ceramic is very different than home store tiles though.

Something to think about anyway,

Bb


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Re: ceramic tile

Post by Squiggle » December 15th, 2016, 3:35 pm

Whoa, that is not good at all, hope you are ok & no injuries. :o

Also, there is a "How It's Made" on the ceramic smoker, might give you an insight into why they work so well. :kewl:

https://youtu.be/8meC2IzQqFw


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John T
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Re: ceramic tile

Post by John T » December 15th, 2016, 8:17 pm

Talked with a ceramic person today . Tile is made different from firebricks it has chemicals and a more controlled Kill . He got a good laugh out of it .



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Re: ceramic tile

Post by Big T » December 15th, 2016, 10:39 pm

Well I guess that answers the question... yes someone has tried it and no it doesn't work!


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