Rafael Molina-Rodriguez (Rafael Molina-Rodriguez) on mon 1 dec 97
Clayarters :
I'm working on the grates of the wood kiln I'm building here at the college.
The plans call for stainless steel grates, but we couldn't afford them.
Jason Hess recommended I use the thickest angle iron I could get my
hands on. So I went out and bought scrap 2" x 2" x 3/8" angle iron.
Jason also suggested that I place the angle with the point of the angle
facing up.
Therein lies my problem. Having built the kiln according to the plans in
Jack's book I made the spacing for the grates only 2 ". I can't get the
angle in the space with the point facing up. I can fit the angle in the grate
hole in what I call the "L" position. This leaves just 3/8" for the wood to
rest on. My question is will the 2" x 2" x 3/8" angle coated with ITC
withstand the extreme heat of the firebox for a sustained period of time?
I plan on firing approximately 18 to 20 hours. TIA.
Rafael
Ric Swenson on tue 2 dec 97
>----------------------------Original message----------------------------
>Clayarters :
>
>I'm working on the grates of the wood kiln I'm building here at the college.
>The plans call for stainless steel grates, but we couldn't afford them.
>Jason Hess recommended I use the thickest angle iron I could get my
>hands on. So I went out and bought scrap 2" x 2" x 3/8" angle iron.
>Jason also suggested that I place the angle with the point of the angle
>facing up.
>
>Therein lies my problem. Having built the kiln according to the plans in
>Jack's book I made the spacing for the grates only 2 ". I can't get the
>angle in the space with the point facing up. I can fit the angle in the grate
>hole in what I call the "L" position. This leaves just 3/8" for the wood to
>rest on. My question is will the 2" x 2" x 3/8" angle coated with ITC
>withstand the extreme heat of the firebox for a sustained period of time?
>I plan on firing approximately 18 to 20 hours. TIA.
>
>Rafael
-------------------
Hey Raphael...
Check out Fred Olsen's plans for fast - fire - wood and you might not have
to do 18-20 hour firings....the proper size firebox.......exit
flue....length of chimney.
.....formulae for success.... try it...you'll like it.... the poem goes
like this...." Freddy Fastfire came to town, four hours later, cone ten's
down.....)
The grates can be made of heavy re-bar and no fear of failure... nothing
special...just re-bar like you'd use for re-inforcement of concrete floors.
In 1976 at F.C Balls' retirement party.....at Univ. of Puget Sound, in
Tacoma, Washington ....in addition to the fresh salmon we cooked..... (&
the beer and champagne we drank and the sacrifice of undergarments to the
fire box.) .....we fired all four of Fred's 16 cu. ft. wood fired kilns
in 3 1/2 to 4 hours each...to cone 10...and had wonderful results... one
fired piece sits on my desk, even now.
Stoke...wait...stoke...proper sized
wood...pine...dry...stoke....wait...watch the stack....long flame path for
wood...stoke.......wait.......like that eh??
HTH
Ric
#####################################
From: Ric Swenson, ( home ) : P.O. Box 494,
North Bennington, VT 05257 - 0494 U.S.A
home telephone ( 802 ) 447 - 4744
( work ) : Bennington College, Route 67 - A
Bennington, Vermont 05201 - 6001
( 802 ) 440 - 4621 ( fax 440 - 4582 )
email: rswenson@bennington.edu
#####################################
" If you want to teach a bear to dance,
you should be prepared to dance
until the bear gets tired. "
..... Russian proverb
--------------------
"Idealism increases in direct proportion
to one's distance from the problem"
......John Galsworthy
LINDA BLOSSOM on tue 2 dec 97
Why not ask Feriz Delkic? You could send a fax to 904-273-1616 or call
904-285-0200. Looking at the literature they send out with the product, my
initial response would be to try it. However, it makes sense to ask the
person who knows for sure.
Linda Blossom
2366 Slaterville Rd.
Ithaca, NY 14850
607-539-7912
blossom@lightlink.com
http://www.artscape.com
jjcat on tue 2 dec 97
Use the metal coating material ITC 213 with 296 top coating. It will withstand
the heat. Depending on the type of metal the angle iron is. I would do a test
firing frist to cone 8.
Good luck..
jjcat@kilnray
At 02:20 PM 12/1/97 EST, you wrote:
>----------------------------Original message----------------------------
>Clayarters :
>
>I'm working on the grates of the wood kiln I'm building here at the college.
>The plans call for stainless steel grates, but we couldn't afford them.
>Jason Hess recommended I use the thickest angle iron I could get my
>hands on. So I went out and bought scrap 2" x 2" x 3/8" angle iron.
>Jason also suggested that I place the angle with the point of the angle
>facing up.
>
>Therein lies my problem. Having built the kiln according to the plans in
>Jack's book I made the spacing for the grates only 2 ". I can't get the
>angle in the space with the point facing up. I can fit the angle in the grate
>hole in what I call the "L" position. This leaves just 3/8" for the wood to
>rest on. My question is will the 2" x 2" x 3/8" angle coated with ITC
>withstand the extreme heat of the firebox for a sustained period of time?
>I plan on firing approximately 18 to 20 hours. TIA.
>
>Rafael
>
>
Ron or Sue Corl on wed 3 dec 97
Yo Gang,
I am going to build a fast fire wood kiln. One thing that I don't
understand is the speed at which we pass through that Black Core phase.
Is black coring only a problem in the bisque? I have read otherwise.
Thanks
Ron
Big baby Head Studio
Mo and Les Beardsley on wed 3 dec 97
Rafael Molina-Rodriguez (Rafael Molina-Rodriguez) wrote:
>
> ----------------------------Original message----------------------------
> Clayarters :
>
> I'm working on the grates of the wood kiln I'm building here at the college.
> The plans call for stainless steel grates, but we couldn't afford them.
> Jason Hess recommended I use the thickest angle iron I could get my
> hands on. So I went out and bought scrap 2" x 2" x 3/8" angle iron.
> Jason also suggested that I place the angle with the point of the angle
> facing up.
>
> Therein lies my problem. Having built the kiln according to the plans in
> Jack's book I made the spacing for the grates only 2 ". I can't get the
> angle in the space with the point facing up. I can fit the angle in the grate
> hole in what I call the "L" position. This leaves just 3/8" for the wood to
> rest on. My question is will the 2" x 2" x 3/8" angle coated with ITC
> withstand the extreme heat of the firebox for a sustained period of time?
> I plan on firing approximately 18 to 20 hours. TIA.
>
> Rafael
Rafael:
I do not know if the angle iron will withstand the heat even with ITC
on it. The best I know of is silcon carbide heavy furniture..We use
the silcon carbide 5" deep with a plate on either end "I". This is
what we use in the Tozan Anagama in Nanaimo. I have also heard that
old axel shafts work. I believe they used them in Flagstaff at NAU.
You could check with Don Bendel. They put the axels in a burey box
and they were passed thru the outside wall of the kiln.
Regards and good luck
Les Beardsley
Ron Roy on fri 5 dec 97
Hi Ron,
Yes - that is right - if you fire your bisque so that the impurities in the
clay are oxidized you will not have black core happen during the glaze
fire. Stephen Hill once fires and he says - make sure you are in oxidation
during the crucial part of the firing and don't go to fast (between 700C
and 900C.) Going slow through that crucial phase is simply a way of giving
the impurities time to get oxidized - the thicker the clay the longer that
will take. Depends what kind of clay - porcelain is not a problem - Bodies
with fireclay and iron bearing clays are the worst as far as I can see.
>----------------------------Original message----------------------------
>Yo Gang,
>
>I am going to build a fast fire wood kiln. One thing that I don't
>understand is the speed at which we pass through that Black Core phase.
>Is black coring only a problem in the bisque? I have read otherwise.
>
>Thanks
>
>Ron
>
>Big baby Head Studio
Ron Roy
93 Pegasus Trail
Scarborough,Canada
M1G 3N8
Evenings, call 416 439 2621
Fax, 416 438 7849
Studio: 416-752-7862.
Email ronroy@astral.magic.ca
Home page http://digitalfire.com/education/people/ronroy.htm
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