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Post by pete123 on Aug 7, 2012 18:52:25 GMT
Cemented in on top of the firebricks with old bags in the voids to stop cement falling in the voids (they will come out eventually). I'll probably fit some slabs on the top to finish it off. Attachments:
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Post by pete123 on Aug 7, 2012 18:54:53 GMT
Just to prove you shouldn't throw anything away. A cement bag on the top & some handy large vermiculite bags tied round the top to keep the rain off the cement. Attachments:
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Post by cannyfradock on Aug 7, 2012 20:18:56 GMT
Pete
You have build ..."one beautiful beast"...there.
That chimney is the crowning glory of your build......should also function perfectly.
That internal crack won't lead to that part of your dome collapsing, or anything silly like that(even if it does get larger during hard firing), but it must be annoying to you. If your repairs fail....and the crack re-appears, you may have to mask up and chase the offending crack out with a 4" angle grinder. You can then re-joint using a fire-proof mastic using a skeleton gun(mastic gun). this way you can squeeze the solution into the joint to make sure it's full. This would be worst case scenario as the crack, although annoying (because you know it's there) will be so minimal to the performance of your oven, that you could probably leave it......Keep your eye on it.
Terry
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Post by faz on Aug 7, 2012 20:38:07 GMT
I'm with you Pete - my wife calls it rubbish, I call it stuff, and as you point out it will come in handy one day Your build looks great, very solid! The detail around the top of the chimney with contrasting brickwork looks really good
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Post by pete123 on Aug 10, 2012 21:02:49 GMT
Thanks chaps. I wanted the bricks round the top match what's on the house...which they sort of did.
I was also told chimneys look better wider at the top??? Also that the reason they are like that is because chimney pots are wider at the bottom so they can be cemented in better and less likely to blow down.
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Post by pete123 on Aug 10, 2012 21:08:19 GMT
This is the cable being pulled through so I can put a light up. It's cable for fire alarms which must be more resistant to heat - bought from QVS. I wanted to put one the other side above the thermocouple display....but the string broke. Attachments:
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Post by pete123 on Aug 10, 2012 21:09:20 GMT
Here's how it ended up. Attachments:
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Post by pete123 on Aug 10, 2012 21:13:00 GMT
I put inside some 20mm conduit so it doesn't touch the bricks in case they get too hot. Not ideal but it must help. I didn't have time to follow up on Terry's idea of heat resistant conduit. Attachments:
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Post by pete123 on Aug 10, 2012 21:21:12 GMT
This is the chimney having some slab cemented around it. Slightly angled so the rain runs off. The slab was cut with my 12" stone cutter & tided up with a stone grinding disc on my 4" grinder. The mix was 8 sharp sand 1 Lime 1 cement some plasticiser. No clay in this mix? Hopefully it won't crack. It's dry now & looks good. Pic to follow at the weekend. Attachments:
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Post by faz on Aug 11, 2012 7:07:14 GMT
Hi Pete,
If you haven't already done it, I would add another bead of mortar (maybe homebrew because of the temp??) around the base of the chimney to make sure that any rain coming off the outside of the chimney is shed directly on to the slabs where it can drain away. Make sure there are no low spots in that area as the moisture will work its way in to the stack area. Especially as the area is out of sight (and out of mind!!).
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Post by pete123 on Aug 15, 2012 21:39:52 GMT
Thanks Faz, I'll bear than in mind. Perhaps I should have used homebrew? The slabs have a reasonable slope on them away from the chimney. I've fired it up since and I should see how it held up.
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Post by pete123 on Aug 15, 2012 21:43:14 GMT
A couple of general shots now its taking shape (Just some bricks & an arch around the outside of the blocks to go). Now the chimney is on the draw it a lot better. Attachments:
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Post by pete123 on Aug 15, 2012 21:44:57 GMT
A good shot from the side. Attachments:
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Post by pete123 on Aug 15, 2012 21:59:13 GMT
There has been a bit of talk on some of the other posts about health & safety lately. I'm ashamed to say I've cut myself with the axe chopping logs. In some ways it's taught me a lesson because it was only a matter of time before I had a mishap with something. I'll be especially cautious before I use the stonecutter again. I've been getting very sloppy and hopefully my injury with the axe has taught me some respect for the tools we use. Take Care
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Post by tonyb on Aug 15, 2012 22:12:02 GMT
I second that. It was after an accident chopping wood, which fortunately didn't require hospital treatment, that I invested in a log splitter.
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