42" build in Virginia

[fabby]

Re: 42" build in Virginia

I am somewhat perplexed on how to close off the top of the chimney. I was thinking of filling the space with v-crete,then a paver brick over the top course of the chimney, and fill the top with concrete.

[Les]

Re: 42" build in Virginia

The blanket won't hinder your cure. I personally would wait until the mortar has all the water driven out before I covered it with stucco.

[fabby]

Re: 42" build in Virginia

the height from the vent opening is 24".

my oven sits outside a walk out basement, lower than the side of the house. I do have another 2' flue that I can add, but I'm thinkin, this chimney is plenty big enough. I want to start insulating and stucco the dome so that I can start curing...but then some here I read to cure before I put the blanket and stucco the dome

[fabby]

Re: 42" build in Virginia

I had some leftover thin stone, was bored, yeah right
so I thought Iwould use some to cover the block

First, I tried a 3:1 mix, that didn't hold worth a damn. Then I google how to adhere thin stone, and they recommended a 2:1 mix. That was better, but still didn't support the stone. Next, I added some acrylic cement bonding enhancer to the mix. That helped, but still not great. So the question is, how do you get real stone to stick to block?

It's almost like I have to do one row at a time, and let it set, and then come back for the next row?

[Les]

Re: 42" build in Virginia

Do you think I need to go higher and add another terracotta flue?

Bigger is usually better. I went up 24 inches and it draws pretty well. How high is yours?

[fabby]

Re: 42" build in Virginia

Well, I had a busy day. I added a couple courses of chimney, and now I'm trying to locate some help on trying to seal off the top. Do you think I need to go higher and add another terracotta flue?



sorry about the crappy brick work. I started out with one size brick, and then ran out and had to switch to another. both were from a stack that was leftover on my property.

[firecycle]

Re: 42" build in Virginia

looking good

[brickie in oz]

Re: 42" build in Virginia

continue up on the outside decorative wall? (Wont that look too big and wide?)

Stay on the outside brickwork, you could step each course in if you feel it will be too big.
Step each side in but leave the front and back flush, as you step in go until you just cover the hole in the brick (measure each side to make them look the same).
Step it in until you think its right and then go flush for the rest of the chimney, dont forget to make sure it works full bricks before going flush upwards as cuts in the middle of a chimney look ugly.

[fabby]

Re: 42" build in Virginia

Here are some photos of where I am at, having completed the decorative arch and filled the sides with v crete to help support/buttress the vent archs.



Here are some side views to orient things better



As you can see, I am stumped on how to build the chimney.

Do I start on the inner vent wall and go up, or continue up on the outside decorative wall? (Wont that look too big and wide?)

I also had a thought of getting the next larger flue size, inserting that over the flue I already have, and just fill the space between the two with vcrete as an insulator. Any thoughts?

[Faith In Virginia]

Re: 42" build in Virginia

Here

It takes a while (at least a week) for the vermiculite to get hard.

The picture above is what I did to buttress my arch. I have plans for the dress up once I get it moved to it's permanent location. I did the vermiculite and the buttressing all at the same time. I will also incorporate the square concrete into the oven cover.

Forgot to say before...It won't hurt to give some curing fires before you put on the insulation.

Faith

[fabby]

Re: 42" build in Virginia

Thanks for the info. I have since added a decorative arch and left a two inch space on the sides of the entrance, that I filled with a 5:1 vermiculite mixture. I am hoping that this sets up strong enough to buttress the archs and insulate the entry.

I know I need to get a pic in here for you to see.
Does vermiculite ever set up, after one day, it still seems to be crumbly.

[Faith In Virginia]

Re: 42" build in Virginia

Looking good. Be sure to buttress that arch before you put any heat to that oven. The expansion of the arch brick will give you an undesired issue.

Faith

[UtahBeehiver]

Re: 42" build in Virginia

What they say, if momma not happy not body is happy, see a dome shape in the future. Chimney has a nice shape to it. I cured without insulation.

[fabby]

Re: 42" build in Virginia

Should I put on my insulation blankets before I cure the oven? And if I decide to form an igloo with stucco, should I wait to cure until that is completed?

I hope to post some new pics here shortly.

Thanks.

[brianventura]

Re: 42" build in Virginia

It's looking good, you're not far now from that first pizza! It's a real thrill making that first pizza after all that work.
I went with an enclosure because I didn't want any chance of water getting into the oven.

Take care,
Brian