Domenick Rotella

Glenn,

Thanks for all your advise.
I did some research and it turns out my area is very clay rich. in the late 19 early 20 century my general area was a big clay pit industry. I'm going to try to find a construction site in my area and see if I can get some clayish, clumpy looking soil into my pickup.

I'll take some before during and after pictures to post.

Really appreciate the advice.

Dom

Dale

The fire clay is $24.50 for 50 pounds.

That's another reason I was wondering how much I would need?

Thank you

Dom

Hi All,

I love this site. So many interesting topics.

I'm finally getting around to building my cob oven.
I am reusing a base structure from an old outdoor fire place.
I bought the Kiko Denzer book but I'm not clear on how many 50 LB bags of fire clay I'll need for a 27" oven.

I think I read somewhere that in total I'll need about a half ton of sand and 3 bales of straw.
I'm assuming the powdered bagged fire clay is more pure than anything I can dig so I'm guessing a 1-3 or 1-4 clay sand ratio.
The measurements in the book seem to be by volume not weight.
I plan on using clay and sawdust to embed two layers of beer bottles on their sides to insulate the base. then fire bricks for the bottom of the oven.

Not sure how much clay and sand I'll need for the 3" inner layer and how much clay, sand and straw I'll need for a 6" insulation layer.

Any advise is much appreciated.

I'm getting excited.
I've wanted an oven like this all my life.
My aunt had one when I was a kid and she made the best bread.

Thank you in advance.

Puppy

Hello all,
I,m new to permies and very exited about what I have learned about rocket stove tech.
I am thinking of building a cob oven powered by a rocket burn chamber and riser.
Any suggestions would be appreciated. I purchased some used fire brick for about $1 each and intend to experiment a bit. I had an idea about the cob oven construction. Has anyone ever tried to use a candle to promote drying the oven slowly while reducing cracking?

Thank you
Dom