Ben Shelton on thu 7 feb 08
I want to build a small test kiln for firing to cone 10 reduction. I'm
planning on using an 18" square shelf stack.
I have many junked electric kilns and would like to use their bricks in this
small kiln but not for the hot face brick due to the fact that they are most
likely 2300 degree bricks. I assume these bricks would be good for the outer
layer. Has anyone had any experience with this? How hot does the outside
face of 1 layer of soft brick get at cone 10?
Anybody got any cheap k26's or 18" square kiln shelves?
Havin fun in the mud in Kentucky
Ben
June Perry on thu 7 feb 08
You can use those 2300 bricks for cone 10. From my understanding, they can
go 100 degrees higher than their listing.
Regards,
June
_http://www.shambhalapottery.com_ (http://www.shambhalapottery.com/)
_http://shambhalapottery.blogspot.com_
(http://shambhalapottery.blogspot.com/)
_http://groups.yahoo.com/group/sodasaltfiring_
(http://groups.yahoo.com/group/sodasaltfiring)
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James and Sherron Bowen on thu 7 feb 08
I though K 23 bricks were better insulators. How hot are you going to fire
this test kiln?
JB
----- Original Message -----
From: "Ben Shelton"
To:
Sent: Thursday, February 07, 2008 10:14 AM
Subject: Bricks for test kiln(recycling old electric kilns)
>I want to build a small test kiln for firing to cone 10 reduction. I'm
> planning on using an 18" square shelf stack.
>
> I have many junked electric kilns and would like to use their bricks in
> this
> small kiln but not for the hot face brick due to the fact that they are
> most
> likely 2300 degree bricks. I assume these bricks would be good for the
> outer
> layer. Has anyone had any experience with this? How hot does the outside
> face of 1 layer of soft brick get at cone 10?
>
> Anybody got any cheap k26's or 18" square kiln shelves?
>
> Havin fun in the mud in Kentucky
>
> Ben
>
> ______________________________________________________________________________
> Clayart members may send postings to: clayart@lsv.ceramics.org
>
> You may look at the archives for the list, post messages, change your
> subscription settings or unsubscribe/leave the list here:
> http://www.acers.org/cic/clayart/
>
> Moderator of the list is Mel Jacobson who may be reached at
> melpots2@visi.com
>
>
Eva Gallagher on thu 7 feb 08
Hi Ben,
I built a wood fired train using using old electric kiln bricks for the
outside wall layer and for the middle layer of the floor. The hot face was
4" wide K26 insulating bricks. I filled in the cracks in the floor and wall
bricks with a vermiculite mix and clay and grog. I used the bricks so that
they were 4" wide - that is the element grooves were facing up. I just fired
it once and with two 4" thickness of insulating bricks you could leave your
hand on the outside and it barely felt warm.
My floor layer is common red house bricks then electric kiln bricks and then
high heat duty hard bricks.
I used about 4 old kilns that I had salvaged from other people. The bottoms
and tops are great as well for floor sections topped with hard brick. I
think as long as you do not have to have a lot of load on it. My train kiln
chamber is just 18" wide by 18" high and 9 feet long so that it does not
bear too much weight. It's a lot of work fitting and cutting the birkcs but
I have more time than moeny so tht was OK.
Hope this helps. Be sure to save the grog from cutting the fire bricks as it
makes great stuff to add to parging.
Eva Gallagher
----- Original Message -----
From: "Ben Shelton"
To:
Sent: Thursday, February 07, 2008 12:14 PM
Subject: Bricks for test kiln(recycling old electric kilns)
>I want to build a small test kiln for firing to cone 10 reduction. I'm
> planning on using an 18" square shelf stack.
>
> I have many junked electric kilns and would like to use their bricks in
> this
> small kiln but not for the hot face brick due to the fact that they are
> most
> likely 2300 degree bricks. I assume these bricks would be good for the
> outer
> layer. Has anyone had any experience with this? How hot does the outside
> face of 1 layer of soft brick get at cone 10?
>
> Anybody got any cheap k26's or 18" square kiln shelves?
>
> Havin fun in the mud in Kentucky
>
> Ben
>
> ______________________________________________________________________________
> Clayart members may send postings to: clayart@lsv.ceramics.org
>
> You may look at the archives for the list, post messages, change your
> subscription settings or unsubscribe/leave the list here:
> http://www.acers.org/cic/clayart/
>
> Moderator of the list is Mel Jacobson who may be reached at
> melpots2@visi.com
>
>
threereeds1 on thu 7 feb 08
Hi Ben,
2300s will work for cone 10. My kiln is a blend of used 2300s and new
2600s.
Insulation properties are very similar and there is no wear difference
firing with propane.
Kiln is one course (4 1/2"). Dry stacked. Cone ten, any atmosphere... 9
hours...not pushing it.
At top end you don't want to lean on this kiln...but it is cooler than a
standard elect. (2 1/2") is at 1500F
Go for it.
Tom King
From Ben Shelton
Subject: Bricks for test kiln(recycling old electric kilns)
>I want to build a small test kiln for firing to cone 10 reduction. I'm
> planning on using an 18" square shelf stack.
>
> I have many junked electric kilns and would like to use their bricks in
> this
> small kiln but not for the hot face brick due to the fact that they are
> most
> likely 2300 degree bricks. I assume these bricks would be good for the
> outer
> layer. Has anyone had any experience with this? How hot does the outside
> face of 1 layer of soft brick get at cone 10?
>
> Anybody got any cheap k26's or 18" square kiln shelves?
>
> Havin fun in the mud in Kentucky
>
> Ben
>
> ______________________________________________________________________________
> Clayart members may send postings to: clayart@lsv.ceramics.org
>
> You may look at the archives for the list, post messages, change your
> subscription settings or unsubscribe/leave the list here:
> http://www.acers.org/cic/clayart/
>
> Moderator of the list is Mel Jacobson who may be reached at
> melpots2@visi.com
>
James and Sherron Bowen on thu 7 feb 08
We have fired our K23s to cone 12 on ocassion without any apparent damage.
It's my understanding that K26s take much more energy to get up to
temperature.
JB
----- Original Message -----
From: "June Perry"
To:
Sent: Thursday, February 07, 2008 10:02 AM
Subject: Re: Bricks for test kiln(recycling old electric kilns)
> You can use those 2300 bricks for cone 10. From my understanding, they
> can
> go 100 degrees higher than their listing.
Arnold Howard on thu 7 feb 08
From: "threereeds1"
> 2300s will work for cone 10. My kiln is a blend of used
> 2300s and new
> 2600s.
You can get new 2300s at a bargain from Paragon. We rejected
them for our production, but they may be quite adequate for
your needs.
Sincerely,
Arnold Howard
Paragon Industries, L.P., Mesquite, Texas USA
ahoward@paragonweb.com / www.paragonweb.com
Rod on thu 7 feb 08
I'm not sure if that was a rhetorical statement or a question ;) That's true
K26's defiantly do take more BTUs to make temperature as they are a denser
brick and therefore store more BTUs.
It may be good to point out to some newer potters that if you happen to get
some of both given to you, etc or the idea strikes you as such, it is
defiantly not a good idea to use both bricks in the same kiln; especially in
the arch. K23's and K26's shrink differently of course.
Cheers,
Rod
Vancouver, B.C
-----Original Message-----
From: Clayart [mailto:CLAYART@LSV.CERAMICS.ORG] On Behalf Of James and
Sherron Bowen
Sent: Thursday, February 07, 2008 11:35 AM
To: CLAYART@LSV.CERAMICS.ORG
Subject: Re: Bricks for test kiln(recycling old electric kilns)
We have fired our K23s to cone 12 on ocassion without any apparent damage.
It's my understanding that K26s take much more energy to get up to
temperature.
JB
----- Original Message -----
From: "June Perry"
To:
Sent: Thursday, February 07, 2008 10:02 AM
Subject: Re: Bricks for test kiln(recycling old electric kilns)
> You can use those 2300 bricks for cone 10. From my understanding, they
> can
> go 100 degrees higher than their listing.
____________________________________________________________________________
__
Clayart members may send postings to: clayart@lsv.ceramics.org
You may look at the archives for the list, post messages, change your
subscription settings or unsubscribe/leave the list here:
http://www.acers.org/cic/clayart/
Moderator of the list is Mel Jacobson who may be reached at
melpots2@visi.com
John Post on thu 7 feb 08
Hi Ben,
I have taken old electric kiln shells and used them with a Marc Ward
MR-750 Raku burner and a propane tank and gotten them to fire to cone 10
easily. You have to cut a burner port and flue of course. I used kiln
shelves as a damper. The only problem I had was that the kiln cooled
more quickly than a large gas kiln would.
If I was doing it again, I would get a small burner from Frey Scientific
and try using that to control the cool down of the kiln.
The other thing I would keep in mind is to consider the path of the
flames/heat through the kiln. Make sure to leave enough room around
your shelves for the flames/heat to move.
John Post
Sterling Heights, Michigan
http://www.johnpost.us
http://www.wemakeart.org
>
>I have many junked electric kilns and would like to use their bricks in this
>small kiln but not for the hot face brick due to the fact that they are most
>likely 2300 degree bricks. I assume these bricks would be good for the outer
>layer. Has anyone had any experience with this? How hot does the outside
>face of 1 layer of soft brick get at cone 10?
>
>
>
vpitelka on thu 7 feb 08
June wrote:
"You can use those 2300 bricks for cone 10. From my understanding, they can
go 100 degrees higher than their listing."
I have found this to be true as well, and the 2300 bricks have better
insulating properties than the 2600s.
- Vince
Vince Pitelka
Appalachian Center for Craft
Tennessee Tech University
vpitelka@dtccom.net; wpitelka@tntech.edu
http://iweb.tntech.edu/wpitelka
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