Mary LaFleur on mon 12 mar 01
I have an older 3 cu ft. size Evenheat kiln that overfired the past two =
cone 04 firings. The cones melted in the kiln setter, the setter did not =
turn itself off, and I had to manually turn off the kiln after 7-8 hours =
when it normally takes only 5-6 hours for a cone 04 firing. I bought the =
kiln used for $90 and fired it 35 times in the past year with 100% =
success. Does this sound like a simple kiln sitter repair? Or, time to buy =
a newer, more reliable one? Any advice appreciated!!!
mudlark on mon 12 mar 01
Yes it does sound like the sitter. It might be the ceramic tube through which the control rod passes. The rod flakes off and fills the tude. See if there's a bunch of "rust" in it. Cl;ean it out and replace the rod.
Mary LaFleur wrote:
> I have an older 3 cu ft. size Evenheat kiln that overfired the past two cone 04 firings. The cones melted in the kiln setter, the setter did not turn itself off, and I had to manually turn off the kiln after 7-8 hours when it normally takes only 5-6 hours for a cone 04 firing. I bought the kiln used for $90 and fired it 35 times in the past year with 100% success. Does this sound like a simple kiln sitter repair? Or, time to buy a newer, more reliable one? Any advice appreciated!!!
>
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Ron on mon 12 mar 01
Try replacing the sensing rod and the two cone holders. These can be
purchased from just about any ceramics supplier. I have on occasion pulled
the two cone holders and using a flat file, file them down until they are
smooth where the cone sits.
-----Original Message-----
From: Ceramic Arts Discussion List [mailto:CLAYART@LSV.CERAMICS.ORG]On
Behalf Of Mary LaFleur
Sent: Monday, March 12, 2001 8:00 AM
To: CLAYART@LSV.CERAMICS.ORG
Subject: overfirings ruined my weekend!
I have an older 3 cu ft. size Evenheat kiln that overfired the past two cone
04 firings. The cones melted in the kiln setter, the setter did not turn
itself off, and I had to manually turn off the kiln after 7-8 hours when it
normally takes only 5-6 hours for a cone 04 firing. I bought the kiln used
for $90 and fired it 35 times in the past year with 100% success. Does this
sound like a simple kiln sitter repair? Or, time to buy a newer, more
reliable one? Any advice appreciated!!!
____________________________________________________________________________
__
Send postings to clayart@lsv.ceramics.org
You may look at the archives for the list or change your subscription
settings from http://www.ceramics.org/clayart/
Moderator of the list is Mel Jacobson who may be reached at
melpots@pclink.com.
Snail Scott on mon 12 mar 01
At 08:59 AM 3/12/01 -0500, you wrote:
>I have an older 3 cu ft. size Evenheat kiln that overfired the past two
cone 04 firings. The cones melted in the kiln setter, the setter did not
turn itself off, and I had to manually turn off the kiln after 7-8 hours
when it normally takes only 5-6 hours for a cone 04 firing. I bought the
kiln used for $90 and fired it 35 times in the past year with 100% success.
Does this sound like a simple kiln sitter repair? Or, time to buy a newer,
more reliable one? Any advice appreciated!!!
>
First, kilnwash your sitter pegs. Then RUN, don't walk,
to the store and get witness cones! And use them!
Even if the sitter is terminal (which I doubt), you
can still fire. You should use them anyway.
-Snail
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