It's time to go Vertical

[dmun]

Re: It's time to go Vertical

1) Your plan for the soldier course sounds good. Since your dome is less than half the height of the diameter of the oven, if I read right, you'll need a steeper slope at some point, hence the thirteen degree angle. You won't need that much angle on succeeding courses.

2) I think the exact width of the slot for your flue is not particuarly important. I think the area of the opening should be larger than the square inch measurement of your flue, ideally twice as large. I know it's not conventional, but I built the back of my "flue funnel" right on top of the dome over the doorway, because I was pressed for width. It made for some fancy brick cutting, but most of them do anyway, or the use of gobs of mortar. Remember that your dome goes in as it goes up, you don't need the full width of whatever you decide as the width between the edge of the door, and the flue opening from the edge of the circle.

Planning helps, but it also helps to lay out this stuff on the floor and actually push the bricks around.

[RCLake]

I've finished with the stand and hearth and was laying out the floor today so I've decided to move up to the big kids site. Also received my insulation board today so I'm happy.
I'll have a lot of issues hooking the dome to the doorway so I'm starting to do a lot more research of prior postings. But I do have a couple of questions.

1) I will put my soldier course on top of the firebrick and I'm planning on cutting them in half, not as a rectangle but with a 13 degree angle. This way the next level will be flush. The top of the inside of this brick will be 21.5" away from the floor center - with a 20" height planned, it seems to me that I'll need to bring each level in 1/8" (assuming 12 levels). Does this make sense?
2) What distance from the door to the front of the vent? Before I cut my insulation board and floor I need to figure out this distance. I'm thinking from inside of the door I have 4.5" for that arch, but then I'm confused. I've seen vent opening from 4.5-6" and then another 6-7".