Section At Smoke Chamber - Page 4 - Masonry Picture Post - Contractor Talk

Section At Smoke Chamber

 
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Old 02-13-2013, 10:52 AM   #61
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Re: Section At Smoke Chamber


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Old 02-13-2013, 11:29 AM   #62
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Re: Section At Smoke Chamber


Awesome work!
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Old 03-23-2014, 10:07 AM   #63
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Wow! It's been over a year since I posted on this last. We finished this project in January of this year, but we are still there part-time doing random little things.

I hope to get some finished photos done soon, but meanwhile, here are some random pictures from the past year.











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Old 03-23-2014, 10:12 AM   #64
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Thanks for posting....I've been jonesing for a year.

The fireplace surround in the 3rd pic and all the window surrounds, are they Indiana or precast? If Indiana, did you make them?
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Old 03-23-2014, 10:17 AM   #65
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They are natural stone, but not Indiana. They are "Cottonwood top ledge" out of Kansas (also where the veneer came from). The fireplace surrounds (3) are from Italy.

Last edited by artisanstone; 03-23-2014 at 10:17 AM. Reason: Correction
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Old 03-23-2014, 10:54 AM   #66
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Beautiful ! !
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Old 03-24-2014, 10:46 AM   #67
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This is just my opinion, of course. I've built smoke chambers every possible way. I always disliked the corbeled brick, parged smooth approach. One, I don't like the actual work, and two, a bunch of little triangular parge sections hanging upside down, never seemed that durable to me.

I think this way gives the smoothest result with the fewest joints to catch creosote. It's basically just a bell-shaped flue liner. With 1/16 joints and heat stop 50, I have no doubt you could pick up the whole assembly and it would act like one piece.
I don't understand your thinking on the firebrick thin pieces rather than a tied in and bonded brick chamber.
Those little triangular areas under the brick get filled as you lay by keeping the brick wet and holding the trowel out under and parging with the oozed mortar! In fact I skim the bottom edge before laying it as it prevents drop off. Otherwize we take a trowel and simply clip off the ends at an angle and parge and wipe with a burlap. Also on large ones I have layed brick at an angle running them into the side walls every so often for bond ..the high sides can be clipped and so can the brick or block that runs over them.

I don't understand why your laying atop the flue chamber without end bond as it rises...you have no toothing, so your intention is that the latter layers will tie in..I suppose?
By the time you spend on all that flue cutting and soaps a brick would be easier and faster and light years srtonger.
Superior should just make a tile brick like the old structuals. If if you ever took old chimneys down youd know that a brick holds up against the acids for 100's of years but flue turn to a schalely mess in short order especially with dampness.

The fp will draft stonger on one side, no? yes?....I was taught to try and center to the chamber until it comes to flue size,.. and then start to angle the flue so it sucks evenly..I know you have limited space however the architech should know that..
The firebox depth "finished" is about 24'' ? If so you are no doubt having the 4''to 5''throat at the back which means the breast is 20'' thick. If so what type a damper, flat plate? It really doesn't matter you will never choke it anyhow.

The stone work is very nice and alot. Is the stone soft, as it looks almost tumbled. Little cutting involved? I wonder how the lintels are flashed? I don't see any copper drips oer the window heads i.e. are they flashed above the lintel?

The flat stone under the porch arches is how thick? The overhangs scare me as to being waterproof ,..not very much hanging over the top or sides of the veneer.

All in all "very nice work" ..how long doing the trade? Did you make any money?...

I have a few big granite homes and barns coming in,.. lost one as the mason was half my price....and he was bidding on tripple Rumfords that couldn't be built,.. less smoke.
They used my design [only 2 fps now]and they went with him which happens alot! The owner will castrate them if they fail,.. he had Sinatra sing at his wedding.. I'm told lol
A shame that people spend so much on fireplaces that simply are just vacum stacks sucking the house cold, and merely for looks.
No wonder f.ps have had such a bad rep preceeding them, including Rumfords which are built for velocity "shooting venturis" yet they boast 1:20 ratios on their best day, but mostly do 1:17 with fixed wide open dampers, usually turbulently designed when coked.

Can't imagine a firplace drawing well with a particular area-d throat on a calm day, still using the same area on windy days.
When will the everyone wake up to the fact that rumford designed a 4'' throat for a straight back.
Yet slants use this depth for their almost twice as long up front throats which are much less burdened in garnering in smoke. i.e. take a funnel and blow thru it at a candle then at the same distance turn it around suck thru it and watch the candle stay light! Hence the reason for thin long up front throats very much less tasked in vacating smoke via low velocity and heat loss, without being temperamental.
i.e.more velocity is needed in suction vrs the pressure side and less resistance is had in a long thin throat, hence a glider uses a long thin wing.
Rumford and Buckley both used the term temperamental, when designing throat area. Rumford though, enjoyed a leapfrog over the already existing fireplaces by using the 4'' throat.

It dawned on me yesterday that the word "temperamental" should have given reason for any mechanic to wonder why it works sometimes, then not? Simply said. It's been 200 years of merely opening the damper back up if leakage starts. Buckley himself said he did not study currents while he slowly filed away at his precast throat making it deeper, until it stopped smoking.

I went for a physical the other day and happened to discuss this with the doc. He said exactly what I just said.
He said he starts off with the damper wide open then slowly chokes it down. I said yes, but do you get that annoying accumulative smoke after a while? He said yes, then I open it up again!
I asked a mason on the houzz if he could choke his straight back rumford ? He replied no. "A choked rumford will smoke the house out!"
Last week a builder friend told me he was playing cards at his buddy's house and the wife wanted to light the fp. He said they had an arguement as the husband complained that "every time he lit it the house would freeze!"
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Old 03-24-2014, 05:06 PM   #68
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Re: Section At Smoke Chamber


I don't know if I can answer all those questions at once, but I'll reply on the smoke chamber.

Think of the cut liners and firebrick as just replacing the parging. It does have a solid brick backup behind it. The reasoning is that it is fast and very smooth. It does not slow me down, as my laborer is cutting it out while I am building the firebox.

We just have a normal Vestal damper directly above the Superior Clay throat tiles. This is what they indicate for that size box.

I forgot the other questions
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Old 03-24-2014, 05:11 PM   #69
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I have no idea if the fireplace would draft more to one side. I would suspect not though, as the smoke chamber would act to diffuse the draft across the width of it.

I might add that this job is in South Carolina. We do not exactly have a strong tradition of wood heating. Some of you might be pained to know that the owners had gas logs installed in these fireplaces. Something about children's allergies??

Relating back to the southern thing, it is very rare anymore to have masonry fireplaces at all. I would guess that Isokern has 95% market share.
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Old 03-24-2014, 07:09 PM   #70
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Quote:
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the owners had gas logs installed in these fireplaces.
Like paying for a Ferrari and using it as a taxi.
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Old 03-24-2014, 09:34 PM   #71
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Re: Section At Smoke Chamber


Artisan, you knocked out of the park!!! That's a project to be proud of.

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