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firing logs

updated mon 3 nov 03

 

Kathi LeSueur on fri 31 oct 03


DCHRis6788@AOL.COM wrote:

>Hello everyone
> Just interested in throwing a new topic in here. What does everyone
>include (basics and variables) in their firing logs? Dawn>>
>
>______________________________________________________________________________
>
>
>
My log looks like this:


Date: 11/01/03 Day of Week: Wednesday Firing
number 31 Weather: 60's slight rain
------------------------------------------------------------------------


Start time -- temp -- C02 reading Kiln
settings/adjustments hour into
firing
------------------------------------------------------------------------

4pm 1500 9% reduction
gas position 5/ air 7 6

6pm 1800 11% reduction gas
position 6/ air 9 8


Firing results: underfired. Uneven temperature



Item First second discard
------------------------------------------------------------------------

Dawn Christensen on fri 31 oct 03


Hello everyone
Just interested in throwing a new topic in here. What does everyone
include (basics and variables) in their firing logs? Dawn

wayneinkeywest on fri 31 oct 03


Mostly hardwoods, like maple, with some oak and hardtack (ironwood) thrown
in for variety.
Wayne Seidl
"Logs? We don' need no stinkin' logs! We'se electric!"


> Hello everyone
> Just interested in throwing a new topic in here. What does
everyone
> include (basics and variables) in their firing logs? Dawn
>

Bonita Cohn on sat 1 nov 03


--
For the Geil-style kiln custom built downdraft at Ruby's the kiln log has
notation space for all the settings:
Date, time, cones, Gas setting. Door open or closed.
Air bells intake on the burners, dampers, adjustments made throughout the
firing, temp and color of each of the 3 peeps. Comments.

Its so important to know what your air intake settings are. Some people just
list when the cones go over. Nice, But how did they get there?
Also a graph keeping note of the temp rise if you have a pyrometer. You can
project when the kiln should finish.
Also note the weather. As discussed before, weather can make a kiln slow
down!
And note the results. So if you like it you can reproduce, or if its a bad
firing, you will have insight into how not to do THAT again.


For the 7 day anagama firings we use a digital pyrometer and make notes on
color. Type of wood. When the cones went. what the pyrometer read when the
cones went. Damper adjustments. Etc. Eventually the pyrometer is
disconnected or the tips burn out and we do it by "eye".


Good luck, Bonita in San Francisco the Day After.

John K Dellow on sat 1 nov 03


For many years while firing Terra-cotta I would not the barometric
pressure and humidity, because
I would fire the kiln the same way every day but could see slight
variation in the fired colour.

John.

Dawn Christensen wrote:

>Hello everyone
> Just interested in throwing a new topic in here. What does everyone
>include (basics and variables) in their firing logs? Dawn
>
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--

John Dellow "the flower pot man"
Home Page http://www.welcome.to/jkdellow
http://digitalfire.com/education/people/dellow/

Bonnie Staffel on sun 2 nov 03


Dear Clayarters, When I used to keep records of my gas firings, it was
highly recommended that I put the log in graph form on graph paper. You
could choose a pattern of checking the kiln say every half to one hour and
noting the readings from your pyrometer, where your damper was, etc. Then
you could readily see changes as they occurred when you tracked temperature
rise by connected dots. Seems that it would also work for an electric
firing. I would add any other pertinent information as notes.

Regards, Bonnie Staffel
http://pws.chartermi.net/~bstaffel/