search  current discussion  categories  kilns & firing - misc 

help kiln not firing high enough

updated wed 4 apr 07

 

Dawn Kleinman on tue 3 apr 07


I bought a used kiln. Have done a few test firings. I have come to the
conclusion that it gets to a cone 06. The previous owner said he would
fire anywhere from a cone 6 to a 9 or 10. I start it on low for about an
hour, then up to about medium for another hour or 2 then onto high for
about 8 hours. I think I should try to rewire it. The elements all work. I
just need a little advise. I have a friend that is an electrician.
Any imput would be greatly appreciated.
Thanks,
Dawn

Taylor Hendrix on tue 3 apr 07


Dawn,

Give us more details about this kiln. The smarty pants on the list can
use that information to help problem solve.

Two main causes of slow firing are failed or failing (old) elements
and inadequate electrical supply. Your friend can help you check the
electrical supply to see if it meets the kilns needs and checking to
see if element(s) work is very easy as well.

Let us know more info on this kiln: make, model, all that UL plate
info, location, kiln load, etc.

Taylor, in Rockport TX

On 4/3/07, Dawn Kleinman wrote:
> I bought a used kiln. Have done a few test firings. I have come to the
> conclusion that it gets to a cone 06. The previous owner said he would
> fire anywhere from a cone 6 to a 9 or 10. I start it on low for about an
> hour, then up to about medium for another hour or 2 then onto high for
> about 8 hours. I think I should try to rewire it. The elements all work. I
> just need a little advise. I have a friend that is an electrician.
> Any imput would be greatly appreciated.

Arnold Howard on tue 3 apr 07


From: "Dawn Kleinman"
>I bought a used kiln. Have done a few test firings. I have
>come to the
> conclusion that it gets to a cone 06. The previous owner
> said he would
> fire anywhere from a cone 6 to a 9 or 10.

Dawn, since all the elements are firing and since the
previous owner fired to cone 6, the problem may be that your
circuit has the wrong voltage.

You cannot always assume that the data plate of a used kiln
lists the correct voltage, either. Sometimes people rewire
kilns to fire on a different voltage than the original
listed on the data plate.

Sincerely,

Arnold Howard
Paragon Industries, L.P., Mesquite, Texas USA
ahoward@paragonweb.com / www.paragonweb.com

Cindy Gatto on tue 3 apr 07


Hi Dawn:
The first thing you need to do is to find out whether or not you have a
true 220 volts or not. Like us we live in NYC and nobody gets a true 220
volts so you have to have your kiln elements for 208 volts. If you have less
than 220 coming from the street and your kiln is a 220 kiln the kiln will appear
like it is working correctly but in all reality it will take a very very
long time to reach temp. Also you need to know if the kiln you purchased is 220
or 208. When you buy a new kiln you can purchase it either way to accommodate
the amount of true volts your electric company provides. Try this first and
if you need help further feel free to email me directly I should be able to
help, I had the same problem years ago when we first started.

Cindy Gatto & Mark Petrin
The Mudpit
228 Manhattan Ave
Brooklyn, NY 11206
718-218-9424
_www.mudpitnyc.com_ (http://www.mudpitnyc.com/)
mudpitnyc@aol.com



************************************** See what's free at http://www.aol.com.