Texman Build

[UtahBeehiver]

Re: Texman Build

Hey Tracy,

I am doing the same as you, getting ready to mount my anchor plate to my brick chimney. Started to hammer drill the holes for Tapcons but my brick is too hard for my home hammer drill so borrowing the Bosch from work for more horsepower. But now leaning towards, Redhead concrete anchors, probaby 1/4" dia x 2". Since my brick was so hard did not have confidence Tapcons will bite into brick. My stack in only 30" above brick and I did like Tu and cut out the circle cuts that go over the concrete bolts. Been halogen light curing this week will be moving to charcoal soon. Good luck too.

[texman]

Re: Texman Build

So you cut the bricks to set on top of the flange of the metal chimney base? How do you cut the inside corners ?
Tracy
well, i see it now after looking at the picture again. That seem like a lot of work. The pic is from Tu (i think) Did you do yours like the pic?
Dont the redheads expand when tightened? I am afraid that would just crack the brick.

[UtahBeehiver]

Re: Texman Build

Mine is not a neat as Tu, I just cut enought to clear the bolt head and plate and not nearly as straight since it will not be seen and filled with mortar. At least mine will be. My bricks are 3" thick and foot print is larger so I wanted as much left on as possible for the the anchor support.

[dvm]

Re: Texman Build

My 2 cents. I put down a tube of Kaowool and then placed a 1/4 inch by 2 1/2 inch stainless tapcon in each corner. Drilled the holes with a Bosch hammer drill and got VERY strong bites from screws. the It has been up there there for two weeks and brought to full temp three times, No cracks, no smoke and no wiggling .... so far.

[Tscarborough]

Re: Texman Build

Tapcon=good, expanding bolt=bad, usually.

You could use an expanding type bolt if you have enough material around it. If you use them in a low-pullout application (Tex's), hand tight plus 1/4 turn is good enough. If you use them in an application where there will be more than nominal pullout stress, then you need to make sure you have correctly sized the bolt, drilled the hole to proper depth, and exceed minimum embedment distances to edges (Hard to do for this type application).

[UtahBeehiver]

Re: Texman Build

Tracy,

Here's my chimney cap. Just finished the cutting tonight. Drilled in Red Heads, slow and easy, no issues.

[Tscarborough]

Re: Texman Build

Excellent! By doing it in that way, you have pretty much zero pull out forces, all stress is shear which is not an issue no matter how you build the rest of the stack. Very nice.

[texman]

Re: Texman Build

Very nice work Russell and thanks for sharing that. I am out of firebrick, but i have 3.5 of the 12 x 12 floor tiles that i can use. I have to REMEMBER to drill holes before i put the final brick on for the chimney because of my very limited clearance to the ceiling!

Did you use expanding anchors like these? Mechanical | Anchoring Solutions | ITW Red Head I am afraid to use these on my tiles because the tile are higher duty brick and would tend to be more brittle. Probably use screws and a little refrac mortar in the holes since the mortar gets stronger with heat. I have the kaowool to use as a sealing gasket also. These screws are really just holding the plate i think, shouldn't really be any other stress that i can see for mine. Hope to be burning by saturday! Been reading the curing threads to get acquainted with that. I set my last brick 45 days ago on the oven. It is so dry here that i cant imagine moisture is left, but will follow the regiment anyway.

DVM
Thanks for the input. I like that approach that you did and glad to hear the screws worked. Need to cut a few bricks if i remember how.
Tracy

[texman]

Re: Texman Build

1st curing fire and 1st cracks. But it is still standing got the oven up to around 200 deg i guess. i dont have the infrared tool. i got the chimney installed, all 9 ' and cap. the triple wall was barely warm to touch. i triple layered the rope around heat break and then used kaowool to cover the rope on inside and out. i used the stainless rod on the floor break on top of rope. it wasnt even warm on first fire. the cracks are from about 1 oclock on the inner arch going up and at the opposite in back. i have read enough threads to expect it but still hoped it wouldnt have any. oh well, it didnt crumble. i built a metal stud chase around the chimney for support and appearance. i will finish that with concrete board and siding to match the other chimney.
tracy

[Lburou]

Re: Texman Build

If you have an oven....You will have cracks. Sorry to see those cracks appear on your oven, but you have the right philosophy about it. It is going to work just fine. Congratulations on that giant step....Now, you can cover all that precise work so noone can see it

[texman]

Re: Texman Build

thanks Lee
Glad to hear from you, been a while. The cracks are part of the process, only way to look at it. It seems to draw well, i didnt notice any smoke out front. I am getting close to wrapping this up feels like and then more tasks appear and more things seem to pull me away from finishing. going to work on enclosure i (we) have decided. Steel and concrete board and stucco, i think.
Tracy

[texman]

Re: Texman Build

here is a pic if the chimney frame

[deejayoh]

Re: Texman Build

If I tilt my head sideways, that looks like a chimney

Glad to hear you are getting that sucker fired up. sorry to hear about the cracks, but I'm pretty sure that's part of the process. Cover 'em up and fergit about 'em.

On to pizza cooking! congrats!

[Les]

Re: Texman Build

i built a metal stud chase around the chimney for support and appearance.

Tracy,

Why are you putting the smoke on the moon? That is a really, really, tall flue.

[texman]

Re: Texman Build

the chimney is 7' above the roof penetration. I think the minimum (code) is 5' above any roof penetration. Also, i have a wood shake roof. When we bought this house many years ago it had a heatilator for a fireplace. The fireplace would backdraft about three in the morning and fill the house with smoke. I replaced the heatilator with a wood stove(that is worth every penny) and added 3' to that chimney. Never had a problem since with that one.
So along comes the wfo and a smallish vent and west texas wind and all that stuff above and i probably overshot the thing. The wood roof is a big part of it. But, she draws good and once it is veneered and has siding, hopefully it will look ok.