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Offline Jon in Albany

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Re: Finally starting my build!
« Reply #40 on: June 28, 2017, 12:37:19 PM »
Im gonna have to use similar.  I though of everything!  Saturday,  I made the hearth form and attached it, and sunday the girlfriend and I poured it.  I completely forgot to set the threaded rod into the slab for the bottom plates of the walls.  Pissed me off!
I meant like this. When I built the dome, it fit nicely under the lowered canopy. Some winds were strong enough to lift the canopy into a raised position so I ended up using straps and more blocks to hold it all down.

Offline BANTAR1000

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Re: Finally starting my build!
« Reply #41 on: June 28, 2017, 12:47:06 PM »
GENIUS!!!

Offline vtsteve

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Re: Finally starting my build!
« Reply #42 on: June 28, 2017, 11:57:59 PM »
I completely forgot to set the threaded rod into the slab for the bottom plates of the walls.  Pissed me off!

I did the same thing... drilled into the cured slab and epoxied them in afterward (I was afraid an expanding anchor would blow the edge off the slab).

I used this (I needed to buy a carbide bit too; the hole size needs to be close to the diameter of the threaded rod):  Sika AnchorFix Anchoring Adhesive
« Last Edit: June 29, 2017, 12:52:53 PM by vtsteve »
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Offline BANTAR1000

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Re: Finally starting my build!
« Reply #43 on: June 29, 2017, 08:20:39 AM »
drilled into the cured slab and epoxied them in afterward (I was afraid an expanding anchor would blow the edge off the slab).

Didn't even think about that.  I hadn't gotten that far into how I was gonna do it, I thought about using a Ramset.  But I don't know if those nails will be enough to hold the walls down.

Offline Tscarborough

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Re: Finally starting my build!
« Reply #44 on: June 29, 2017, 05:38:19 PM »
It is actually quite standard not to try and embed the rods, but to add them where needed when needed.

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Offline BANTAR1000

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Re: Finally starting my build!
« Reply #45 on: September 14, 2017, 12:06:17 PM »
Since I made the hearth quite a bit bigger than my bottom slab, I didn't get to make the surface very smooth. I'm a little concerned about putting the cal-sil boards on top of it because they may be out of level. Can I just use fireclay underneath of it to sort of shim up the boards?

Offline vtsteve

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Re: Finally starting my build!
« Reply #46 on: September 14, 2017, 12:49:45 PM »
A dry mix of sand and fireclay is the usual, just screed it flat with a 2x4. Use the same mix to bed and level the floor bricks on top of the cal-sil.
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Offline BANTAR1000

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Re: Finally starting my build!
« Reply #47 on: September 18, 2017, 11:53:12 AM »
Got my boards!  I'm amazed how light these suckers are!  And because my wonderful girlfriend was so close to Louisville this weekend she picked them up and saved me freight so I got one more board. 

Now getting some fire clay and mortar mix and soon as it dries up a bit,  I'm gonna go start working again!  Thanks again for everyone's help!

Offline vtsteve

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Re: Finally starting my build!
« Reply #48 on: September 18, 2017, 11:58:19 AM »
Very nice!
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Offline BANTAR1000

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Re: Finally starting my build!
« Reply #49 on: September 19, 2017, 02:12:19 PM »
So how big of a pain in the butt is it really to cut the oven floor to fit inside the walls.  Is it worth the trouble or should I just plan on laying the foundation and putting my first course on top of the floor?

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Offline vtsteve

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Re: Finally starting my build!
« Reply #50 on: September 20, 2017, 02:06:15 AM »
I made a template, laid out my bricks in a herringbone pattern, traced the template with a sharpie, and cut the edge bricks to the line. Then I wrapped the floor bricks with a layer of corrugated (to leave a thin gap after it burned out) and mortared the first-course soldiers around them. It was pretty straightforward.
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Offline BANTAR1000

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Re: Finally starting my build!
« Reply #51 on: September 20, 2017, 12:01:28 PM »
Then I wrapped the floor bricks with a layer of corrugated
 
Thanks Steve!  And just to cover my butt.  Corrugated what?  Im assuming paper.  Like cardboard?   

Offline vtsteve

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Re: Finally starting my build!
« Reply #52 on: September 20, 2017, 12:20:30 PM »
Thanks Steve!  And just to cover my butt.  Corrugated what?  Im assuming paper.  Like cardboard?   

Yes, sorry about that!   :-D

I cut strips off a plain cardboard box; the cardboard keeps the first course from bonding to the floor. The gap left when the cardboard burns out will fill with ash, which absorbs any relative motion (from uneven heating) between the floor and walls.
« Last Edit: September 20, 2017, 12:26:41 PM by vtsteve »
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Offline Jon in Albany

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Re: Finally starting my build!
« Reply #53 on: September 20, 2017, 12:25:10 PM »
I did pretty much the same thing with a piece of luan board. Once the wall was up, I cut the board in 3 pieces so it would fit out of the opening, pieced them back together with duct tape and used the template to protect the floor during construction.

You wouldn't be the first to build on top, but I wouldn't want the bricks to go much past the outside of the wall. Don't give the heat a chance to go anywhere. You can see how Tom (TScarborough) built this one on top of the floor but still trimmed the floor to end at the outside of the wall.

http://brokebrick.com/genesoven.htm


Offline BANTAR1000

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Finally starting my build!
« Reply #54 on: September 20, 2017, 04:29:46 PM »
I know that normal people find info first but I'm better at doing it on the way...

So I have a concrete hearth stand,  and I'm not gonna use vermicrete.  I'm gonna put a layer of dry sand and fire clay as Steve mentioned then 2"cal sil boards.  Because I can't get those boards wet,  how do the bricks at the vent landing get 'secured?' If I wanted to basketweave or herringbone the bricks for the floor and the vent landing, the bricks on the landing could be smaller.  What's to keep them from falling out of place?  Mainly on the edge or is that the normal way to do it?

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Offline vtsteve

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Re: Finally starting my build!
« Reply #55 on: September 21, 2017, 12:56:41 AM »
Good news - cal-sil is actually moisture resistant!

I'm not quite sure what the rest of your question means... the vent walls are "separate but adjacent" to the inner arch, and held in place by the weight of the vent arch and flue. I cut the vent floor to fit inside them, too.

Caution: overthinking ahead...
I built my inner arch (the opening of the dome proper) with a bit of a snout, which projects a few inches into the vent arch. I back-cut the vent arch and entry bricks and stuffed the area between the dome and the vent with ceramic fiber batting for a thermal break.
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Offline BANTAR1000

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Re: Finally starting my build!
« Reply #56 on: September 21, 2017, 11:57:50 AM »
I realized as soon as I hit send my question was a little crazy.   LoL

I couldn't figure out how to draw a basket weave/herring bone easily so that's what I could draw!  What's to keep the bricks that are highlighted in pink from falling or getting really loose?  If I continue the pattern there.

Offline Tscarborough

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Re: Finally starting my build!
« Reply #57 on: September 21, 2017, 03:54:47 PM »
Is the floor inside the walls or are the walls on top of the floor?

Offline Tommy G

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Re: Finally starting my build!
« Reply #58 on: September 22, 2017, 11:29:27 AM »
Pattern helps lock them in but I use Heatstop mortar and set them like tile.

Tom

Offline BANTAR1000

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Re: Finally starting my build!
« Reply #59 on: September 22, 2017, 03:36:40 PM »
Is the floor inside the walls or are the walls on top of the floor?

My plan was to put them inside the walls.

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