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Reduction - What Is It Good For?


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#1 gkillmaster

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Posted 23 April 2014 - 12:13 PM

Hi,

 

For a lot of pottery, I prefer the look of reduction. I just found out the possibility of using electric kilns to do reduction firings? I had no idea about this.

I would love to know more. Like, does the result resemble using a gas kiln? Does the firing reduce the life of the elements? Does it produce toxic fumes? What is the best way to accomplish this? etc.. etc...

 

many thanks,

 

Greg K.



#2 schmism

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Posted 23 April 2014 - 12:30 PM

start here

http://community.cer...ents#entry56328



#3 JBaymore

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Posted 23 April 2014 - 12:39 PM

From the title of this thread...... I want to reply :

 

"Ab-so -lutly nothin'.  Say it agin ya-all.  "  (Only the old folks might get this ;).

 

Yes reduction electrics are VERY common in Japan.  Yes, it takes life off the elements.... but that is the "cost of doing business".  Compared to building the typical gas kiln........ an electric reduction kiln is cheaper and easier to get inot places you can't get a gas kiln. 

 

Yes they produce the same  potential of CO and other byproducts of partial combustion (aldehydes, etc.).  You need far better venting than the typical "Orton Kiln Vent" kind of ventilation.  They just don't produce it in the same volume or at the same temperature as fuel fired kiln.

 

Possibilities for fuel include charcoal, wood, propane, butane or natural gas.  (DON'T follow the frequent recommendation for using mothballs!!!!!)

 

best,

 

.............................john


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Immediate Past President; Potters Council
Professor of Ceramics; New Hampshire Insitute of Art

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#4 neilestrick

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Posted 23 April 2014 - 12:56 PM

Firing in reduction is an aesthetic choice. It makes no difference in functionality.


Neil Estrick
Kiln Repair Tech
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#5 High Bridge Pottery

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Posted 23 April 2014 - 01:52 PM



#6 Darcy Kane

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Posted 23 April 2014 - 01:55 PM

From the title of this thread...... I want to reply :

 

"Ab-so -lutly nothin'.  Say it agin ya-all.  "  (Only the old folks might get this ;).

 

Got it, loved it, and killed a few brain cells listening to it :D



#7 gkillmaster

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Posted 25 April 2014 - 05:08 PM

 

thanks schmism!



#8 gkillmaster

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Posted 25 April 2014 - 05:10 PM

From the title of this thread...... I want to reply :

 

"Ab-so -lutly nothin'.  Say it agin ya-all.  "  (Only the old folks might get this ;).

 

Yes reduction electrics are VERY common in Japan.  Yes, it takes life off the elements.... but that is the "cost of doing business".  Compared to building the typical gas kiln........ an electric reduction kiln is cheaper and easier to get inot places you can't get a gas kiln. 

 

Yes they produce the same  potential of CO and other byproducts of partial combustion (aldehydes, etc.).  You need far better venting than the typical "Orton Kiln Vent" kind of ventilation.  They just don't produce it in the same volume or at the same temperature as fuel fired kiln.

 

Possibilities for fuel include charcoal, wood, propane, butane or natural gas.  (DON'T follow the frequent recommendation for using mothballs!!!!!)

 

best,

 

.............................john

 

wow, thanks JBaymore for so much information with so few words. Yeh, the subject name is exactly what was going through my head when I posted! Never imagined anyone would pick up on it... WAR!



#9 gkillmaster

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Posted 25 April 2014 - 05:10 PM

Firing in reduction is an aesthetic choice. It makes no difference in functionality.

 

Exactly my feeling.



#10 gkillmaster

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Posted 25 April 2014 - 05:13 PM

 

From the title of this thread...... I want to reply :

 

"Ab-so -lutly nothin'.  Say it agin ya-all.  "  (Only the old folks might get this ;).

 

Got it, loved it, and killed a few brain cells listening to it :D

 

 

Inspires me to write a song that good for modern times. But that's what "Killing in the Name" was for!



#11 gkillmaster

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Posted 25 April 2014 - 05:13 PM

 

Great! thanks a lot. Love the short music segues!! haha.

 

very enlightening...



#12 Chilly

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Posted 25 April 2014 - 06:10 PM

From the title of this thread...... I want to reply :

 

"Ab-so -lutly nothin'.  Say it agin ya-all.  "  (Only the old folks might get this ;).

 

 

best,

 

.............................john

My uncle Terry was their roadie......


----------------------------------------------------------

Ann

http://www.readypeda...uk/pottery.html


#13 Biglou13

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Posted 25 April 2014 - 07:09 PM

For the younger set

http://youtu.be/GXtXE2-MaUY#t=100
Caution big brother is watching.
The beige is blinding!!!!!!
The middle of the road is boring

The true sign of intelligence is not knowledge but imagination.
-Albert Einstein

#14 Mark C.

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Posted 25 April 2014 - 11:05 PM

Just sticking to your question -reduction what is it good for
Well that's an easy one it makes my colors snappy and brilliant in a reduction kiln
I makes my pots stand out so folks want to by them
It has made my life as a potter successful
It all starts with a reduction kiln and the right glazes.
It not like paint as it's always different and that's what the best part is.
Mark
Mark Cortright
www.liscomhillpottery.com

#15 NFallon

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Posted 26 April 2014 - 06:24 AM

I purchased a gas kiln for the express purpose of reduction firing Shino glazes after I was introduced to them. It is my perferred glaze and firing method.

On another note..because of the size of my gas kiln, and my production / "second job" cycle, I can only fill the kiln 3-4 times per year. When I saw the video, my thought was TEST kiln for reduction firing! I have two small electric kilns. One is manual, and one has a non-functioning programmer.Besides venting issues, what pitfalls might one consider when converting one of these kilns? (This question might be better as a new thread...but I'm not sure what the etiquette is to start on)

#16 Benzine

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Posted 26 April 2014 - 08:07 AM

John, I think you underestimate the younger generations. I totally got that reference. Though I'm not quite as young anymore, and that seems to be even more true each year...
"Anything worth believing, is worth questioning"

#17 JBaymore

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Posted 26 April 2014 - 10:10 AM

Benzine,

 

I'm guessing that for you that is an "oldie".  For me it was a "newie".  ;)

 

best,

 

..............john


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Immediate Past President; Potters Council
Professor of Ceramics; New Hampshire Insitute of Art

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#18 Benzine

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Posted 26 April 2014 - 03:30 PM

Benzine,
 
I'm guessing that for you that is an "oldie".  For me it was a "newie".  ;)
 
best,
 
..............john


Yes indeed John.
I remember a few years back, a student called a song "old". I told them, it wasn't old, it came out in said specific year. They responded, "I wasn't even born yet.". I then shook my fist at them, and proceeded to collect all the Frisbees that landed on my property, and hide out in my house...
"Anything worth believing, is worth questioning"

#19 Stellaria

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Posted 26 April 2014 - 07:25 PM

Did you shout "Get off my lawn"?

#20 Benzine

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Posted 26 April 2014 - 07:57 PM

Did you shout "Get off my lawn"?


Naturally, and the word "Whippersnapper" was also used.
"Anything worth believing, is worth questioning"




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