Wood fired Raku kiln
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Subject Author Date
Wood fired Raku kiln The Clay Empire 06-26-2006
Posted by The Clay Empire on June 26, 2006, 8:47 pm
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I recently tried my hand at wood fired raku ware to nominal success.
The problems I faced while firing were many. It rained and the wood
fuel was wet and poor quality. My fire box was too large for my firing
chamber and I did not have enough bricks for a taller chimney to create
more draft. There was no wind most of the day to add oxygen to the
firing and it reduced heavy. I was at a historical reinactment
festival and I could not just unload my propane and get down to
business. I am writing to ask if anyone has some dimensions,
suggestions or experience with a demonstration raku wood fired kiln. I
found some articles and some great dimensions for the japanese model
and I tried to base it on what I had found. However, what I found out
is that my assumptions of a a steady gust of wind gushing up the
hillside and great hardwood were just that...assumptions. I used
refactory brick instead of creating a clay permanent kiln because of
the events restrictions. If you have any imput or just want to share a
hearty laugh with me that would be great!

chad


Posted by DKat on July 13, 2006, 12:25 pm
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Would love to see your design once it is up and running (pictures would be
fun too!). Enjoyed hearing of the adventure.

Donna

>
> After talking with Tom Clarke at Dakota Potters in Sioux falls South
> Dakota, I think we may have figured it out. I had my design backwards.
> I had a larger opening in my wood box than I had for my flue. So we
> are going to reverse that around so the fire box opening is half as big
> as my flue, and actually shrink my whole fire box down a little. Then,
> with the key refractory brick I was using a lot of my heat was going to
> heat soak those dense bricks. So I am going to change to light
> refractory brick for the ware firing chamber and leave the dense brick
> for the wood fire box. Just with these two tweaks I think I will be
> able to atleast reach temperature. I will keep you posted.
>
> Chad
>



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