newbie need advise for my oven

[Laurentius]

Re: newbie need advise for my oven

The gap is for a thermal break, its for retaining more heat in the oven, with your build I wouldnt bother.

Whats going to hold the oven roof up?

Absolutely Nothing, say it again!

[stonecutter]

Re: newbie need advise for my oven

The arch failed because the sides were set as sailors and they don't have enough width in relation to the weight of the arch.

[david s]

Re: newbie need advise for my oven

Today I took out the "supporting" frame and the roof caved in.. bugger!! was just about to put the chimney up.
Guess I have to buy more bricks and shape it proper... shit!

Did you place wedges under your form so it can drop? This makes removal of the form easy and will not disturb your brickwork. Could be a cause of your failure.

[mrchipster]

Re: newbie need advise for my oven

Well at least we have another good example of how not to build an oven.

Brickie, David, Les, and others tried to warn you, give you advise and even a little prodding to get you to build your oven properly. And the end result was ... Well not great.

You mentioned several times in your posts, "In theory" but the people giving you advise are experienced "In practice" people and sometimes theory or our perception of it is trumped by "Real Life".

I do speak from experience because my first oven was done with economy in mind and I ended up tearing it down (it did not fall down like yours) but it was for the best. Brickie is also on his second oven due to design flaws in his first and I know we are both happier with our second ovens.

The people giving you advice here are some of the most helpful and knowledgable people on the planet with regarded to WFO building and you will learn a lot if you just listen to what they are trying to tell you.

Good luck on your next build.

[UtahBeehiver]

Re: newbie need advise for my oven

Ceramic Fiber Blanket Insulation

[gonzo420]

Re: newbie need advise for my oven

I need more bricks for that place I bought the used one from sold out..

[brickie in oz]

Re: newbie need advise for my oven

What about the sideways thrusts?
Everything on this planet just wants to lay flat, its the way it is, build a domed oven.

[gonzo420]

Re: newbie need advise for my oven

I thought that the cement will act as a wedge between the gaps and hold everything together! theoretically it seemed possible.

[brickie in oz]

Re: newbie need advise for my oven

Gotta admire someone who tries to defy the laws of gravity.

[gonzo420]

Re: newbie need advise for my oven

Today I took out the "supporting" frame and the roof caved in.. bugger!! was just about to put the chimney up.
Guess I have to buy more bricks and shape it proper... shit!

[gonzo420]

Re: newbie need advise for my oven

square gravity supported pizza ovens.

Do you have a photo of that? I already used refractory concrete to stick the dome together. Not sure how big to do the chimney now

[gonzo420]

Re: newbie need advise for my oven

You can apply vcrete over CF, I used chicken wire.

What's CF? And vcrete lol I'm such a newb

[flourchild]

Re: newbie need advise for my oven

Gonzo, I used insulating brick under a fire brick floor in a stacked, no mortar, moveable pizza oven for 2 years until I built a Pompeii oven. I had attended a workshop by David S Cargo, who has posted on this forum. He developed plans for stacked, square gravity supported pizza ovens using insulating brick under hearth . We fired up over 900, however it cooled quickly without insulation. I would leave the bricks intact.

[UtahBeehiver]

Re: newbie need advise for my oven

You can apply vcrete over CF, I used chicken wire.

[gonzo420]

Re: newbie need advise for my oven

How can I calculate the size of the chimney?