36" Tall Man's Oven Build

[KINGRIUS]

Re: 36" Tall Man's Oven Build

I may end up with an eighty four inch chimney. That would put me 36" above the top of my planned roof. I've heard 36" above the highest point of the roof is the minimum desired clearance to make sure there's no interference with the draft pull.
Thanks for the tip on heating the chimney to create pull pdiff, I'm going to remember that one.

Darius

[Pdiff]

Re: 36" Tall Man's Oven Build

Stack flow can be sensitive to ambient air temps. If the stack is cold, it will resist hot air trying to rise within it. The old fireplace flue trick of blowing out the stack with hot air might help. As you light the oven fire, you could try sticking a newspaper "torch" directly under the stack to initiate and facilitate the flow. This may be even more true with a tall stack.

[dmun]

Re: 36" Tall Man's Oven Build

my chimney is going to be really tall, so maybe it'll act as a vaccum and suck the smoke right out.

Tall chimneys rule! They can suck a whiff of smoke right out from in front of an oven. They can create a draft to burn wood that's too damp to burn. In theory they can get the smoke up beyond where it will choke out neighbors. I recommend building the tallest chimney you can manage.

[KINGRIUS]

Re: 36" Tall Man's Oven Build

Mine is 5" deep by 7 1/2" wide. Sounds like I may get a little smoke out the front too. However, my chimney is going to be really tall, so maybe it'll act as a vaccum and suck the smoke right out. Either way, I'm not going to worry too much about it. Thanks Mark!

Darius

[ThisOldGarageNJ]

Re: 36" Tall Man's Oven Build

Hey King,
Its about 3 1/2 wide x 9 long.. once the fire gets going its fine... i was thinking of cutting it larger with the diamond blade, i could probably get another inch on each side giving me 5 1/2 but i dont want to shut the oven down if i have a problem and have to rebuild the arch and chimney... I think the black on the front of the oven adds charm

Mark

[KINGRIUS]

Re: 36" Tall Man's Oven Build

Mark, how big is your chimney opening in the arch?

[ThisOldGarageNJ]

Re: 36" Tall Man's Oven Build

hey morgans,
I used fire brick for my chimney because I had enough left for it, I mortared it directly to the arch using heatstop 50 ... works well once it gets going, Only mistake I made was not making the chimney hole big enough in the arch.. I did go two ros of brick higher than what you see in the pic.

cheers
Mark

[vintagemx0]

Re: 36" Tall Man's Oven Build

It depends on what kind of chimney you're going to use. We used 3 feet of 6" Simpson Duratech (UL 103HT). We used an anchor plate by Simpson that is made for this type of chimney. We drilled holes into our brick and tapped-in lead anchors (dollies) and just screwed the anchor plate down. The chimney pipe just sort of screws on to the anchor plate (twist-lock). Just that simple.

I'm partial to bourbon, but vodka and tonic is good too! ching-ching!

'Morgans

[KINGRIUS]

Re: 36" Tall Man's Oven Build

Thanks for sharing the moment with me guys! I'll go ahead and remove the forms tomorrow then. Thanks for the tip Ken. With my long arms I might be able to do the last inside patch work from the outside without having to stick my upper body inside, especially since the dome is so low.

I'm not too worried about building my chimney transition out of brick, the only thing I'm unsure about is how to attach the chimney to the top of the brick. If it's in the fb manual, then I couldn't find it. How did you guys attach your chimney?
Oh BTW, it's vodka and tonic!

Thanks,
Darius

[ThisOldGarageNJ]

Re: 36" Tall Man's Oven Build

Hey Darius,
Congratulations..... A job well done, Its a Milestone as well as a keystone

Many Happy Pizza's,
Mark

[vintagemx0]

Re: 36" Tall Man's Oven Build

Dude, that's awesome. I feel your joy!

You don't have to wait to remove the forms, unless you fear it will result in pushing upward on the bricks that are starting to set. Theoretically, the structure is supporting itself now. The last outer archway I made, I removed the forms immediately after I tapped-in the keystone. Just makes cleaning the fresh mortar off the bricks much easier.

So, relax tonight, plot your next moves, and have a well deserved drink of your choice!

Good work!

Ken

[KINGRIUS]

Re: 36" Tall Man's Oven Build

I'm there!!!

I closed up the dome today!

You're going to have a mile-wide grin on your face when you put that keystone in the top and it's officially closed-up.

You were right Ken. In fact It's been 6 hours since I tapped in the last keystone and I'm still grinning!

Here's a keystone for a keyhole-
I'm going to wait a couple days before I remove the forms, but I'll start the chimney transition tomorrow.

Darius

[ThisOldGarageNJ]

Re: 36" Tall Man's Oven Build

nice cutting king... keep going your almost there

[KINGRIUS]

Re: 36" Tall Man's Oven Build

I was able to get the new forms back out of the oven to do as much patching from the hole in the top as possible before I close it up. (thanks again for the advice Ken!)

I worked on it for about 3 hours today and all I did was cut bricks. Yesterday I cut and set a chain. I have about 4 to 5 bricks to cut before I'll mortar this chain in place. Why is it I'm starting to get the hang of this when I'm almost done?!

[KINGRIUS]

Re: 36" Tall Man's Oven Build

One peice of advice would be to take those forms out and climb in there now and patch as much as you can to take advantage of the opening at the top of the dome letting in good light. Lighting is an issue in there when it's closed and it's hard to manage a flashlight with your body in there. If all is done except the last few rows, it won't be as bad.

Err... Oops! That really is good advice that I'm surprised I didn't think of myself! The only thing is, I don't know that I can get those forms out of there without destroying them or 80% of the chain I set yesterday after I placed the new forms. I'll try and see what I can do. I guess this is one of those things I'll definitely remember to do on my next oven!

I'm 6' 6" tall and have the same concern about cleaning-up the dome!

Wow you'd make me feel like a squirt if I stood next to you! I'm 6'3" without shoes. My wife is also 5'2", but I may be able to rustle one of my friend's kids into service for my inside dome work if I can't fit myself.

Thanks for the advice and encouragement gize, I'm going to see what I can do about getting these forms out without destroying them.

Darius