Jeff Lawrence on thu 14 jan 99
Say a fellow wanted to fire an 8 foot tall vase and had space to build a
dedicated kiln for the purpose.
I'm particularly thinking about the unevenness from top to bottom, but
probably have other problems lurking that I'm not smart enough to be aware
of.
Any thoughts on what characteristics that kiln should or should not have?
Downdraft v. updraft?
Configuration: a tall cylinder built to fit or a monstrous cubicoid?
Forced air v. venturi?
Multiple burners at different heights?
Recommended burnt offerings and/or specific deities to target?
Thanks in advance,
Jeff
Stephen Mills on sat 16 jan 99
Peter Hayes a Potter-Sculptor in the UK did a series of Totem Pieces a
year or two back, firing them in a 12 foot high "drum" made of Ceramic
Fibre on a weld-mesh backing, using two burners at the bottom on
opposite sides firing clockwise rather than straight in. It worked
beautifully.
Steve
Bath
UK
In message , Jeff Lawrence writes
>----------------------------Original message----------------------------
>Say a fellow wanted to fire an 8 foot tall vase and had space to build a
>dedicated kiln for the purpose.
>
>I'm particularly thinking about the unevenness from top to bottom, but
>probably have other problems lurking that I'm not smart enough to be aware
>of.
>
>Any thoughts on what characteristics that kiln should or should not have?
>
>Downdraft v. updraft?
>Configuration: a tall cylinder built to fit or a monstrous cubicoid?
>Forced air v. venturi?
>Multiple burners at different heights?
>Recommended burnt offerings and/or specific deities to target?
>
>Thanks in advance,
>Jeff
>
--
Steve Mills
Bath
UK
home e-mail: stevemills@mudslinger.demon.co.uk
work e-mail: stevemills@bathpotters.demon.co.uk
own website: http://www.mudslinger.demon.co.uk
BPS website: http://www.bathpotters.demon.co.uk
Cameron Harman on sat 16 jan 99
Jeff,
When you want to fire something that is out of the ordinary, then
I have something to offer. There are a lot of useful kilns out
there for a lot of purposes, but when you need something sepcial
like a kiln to fire uniformly top to bottom, regardless of the
size, then you do need something special.
I would normally used sealed burners with a commercial combustion
blower, the burners with individual blowers are not srtrong
enough. I place these burners at three levels (in your case) and
build the kiln as a downdraft. Then I use a multiloop programmable
controller so that the three levels can be controlled separately
to meet the same program. Another progammed loop is to control the
amount of excess air for oxygen control and efficiency.
Call me if you want more details.
Cameron Harman
--
**********************************************************
Cameron G. Harman, Jr. 215-245-4040 fax 215-638-1812
e-mail kilns@kilnman.com
Ceramic Services, Inc 1060 Park Ave. Bensalem, PA 19020
get your free ezine: http://www.kilnman.com/ezine/ezine.html
THE place for total kiln and drier support
**********************************************************
Marcia Selsor on sat 16 jan 99
If you go to my page on the workshop in Spain, there is a photo of a
kiln that could handle that 8' pot. It was built by Lucas Arcadia (I
think that is correct spelling) from Leon, Spain for a workshop at the
Centro Agost in 1996.
http://www.imt.net/~mjbmls/spain99
Jeff Lawrence wrote:
>
> ----------------------------Original message----------------------------
> Say a fellow wanted to fire an 8 foot tall vase and had space to build a
> dedicated kiln for the purpose.
>
> I'm particularly thinking about the unevenness from top to bottom, but
> probably have other problems lurking that I'm not smart enough to be aware
> of.
>
> Any thoughts on what characteristics that kiln should or should not have?
>
> Downdraft v. updraft?
> Configuration: a tall cylinder built to fit or a monstrous cubicoid?
> Forced air v. venturi?
> Multiple burners at different heights?
> Recommended burnt offerings and/or specific deities to target?
>
> Thanks in advance,
> Jeff
--
Marcia Selsor
mjbmls@imt.net
http://www.imt.net/~mjbmls
http://www.imt.net/~mjbmls/spain99.html
paul on sun 17 jan 99
Jeff,
I would suggest building an updraft kiln, if this is a one time project
then you could line some 55 gallon drums with fiber if the diameter is large
enough.
With what ever type of kiln that you end up building, the one thing that
I know is that you will have difficulty with even temp early on and the best
solution for that is going verrry verrry sloooow. I made five foot tall
pots in grad school and the first bisque firing (I extended 5 hrs longer
than normal) I had to unload with a shovel!! I began firing over a 2 and one
half day cycle. A long candle warm-up and then slight turn ups. Don't forget
that the most critical part of a good bisque is before red heat!!
Paul Wilmoth
earthenware, and wood/salt stoneware
pwearthenware@email.msn.com
-----Original Message-----
From: Jeff Lawrence
To: CLAYART@LSV.UKY.EDU
Date: Thursday, January 14, 1999 10:15 AM
Subject: Tall kiln for tall ware/was evening out the firing
>----------------------------Original message----------------------------
>Say a fellow wanted to fire an 8 foot tall vase and had space to build a
>dedicated kiln for the purpose.
>
>I'm particularly thinking about the unevenness from top to bottom, but
>probably have other problems lurking that I'm not smart enough to be aware
>of.
>
>Any thoughts on what characteristics that kiln should or should not have?
>
>Downdraft v. updraft?
>Configuration: a tall cylinder built to fit or a monstrous cubicoid?
>Forced air v. venturi?
>Multiple burners at different heights?
>Recommended burnt offerings and/or specific deities to target?
>
>Thanks in advance,
>Jeff
Jim Brooks on sun 17 jan 99
has anyone thought about finding a friend that has a sectional ( built in
sections). kiln..and stacking some of the wired rings on top of your electric
kiln to fire these tall pieces..?
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