Tony Ferguson on sat 12 may 01
Guess I won't offer any advice on adding bentonite to
slip.
On another matter, has anyone built a small cone 10
kiln out of fiber or brick (like a large garbage can
size) and successfully fired it to cone 10 with
reduction using a 500,000 btu weed burner and a
propane tank? Haven't done it thinking of trying it
to see if it would work.
Experimenting in Duluth
Tony Ferguson
=====
--Tony Ferguson, fergyart@yahoo.com315 N. Lake Ave. Apt 401Duluth, MN 55806(218) 727-6339Looking to see, buy or barter artwork go to:http://acad.uwsuper.edu/www/aferguso/fergyart.htm
Hank Murrow on sun 13 may 01
>On another matter, has anyone built a small cone 10
>kiln out of fiber or brick (like a large garbage can
>size) and successfully fired it to cone 10 with
>reduction using a 500,000 btu weed burner and a
>propane tank? Haven't done it thinking of trying it
>to see if it would work.
>
>Experimenting in Duluth
>Tony Ferguson
Dear Tony;
I built a samll (chamber 21" cube) lifting fiber kiln to use as a test kiln
when I needed information without loading up the cubic meter of my larger
lifting fiber kiln. This uses a small (1.25") Eclipse mixer with eight 1/2"
burner nozzles around the perimeter of the floor. Under these natural draft
conditions the small kiln does not have enough vertical (read draft) to
accomplish C/10. I had to add a source of gentle forced air to get to C/10.
But what a sweet test kiln it has become!
Good Luck, Hank in Eugene
John Weber on mon 14 may 01
Tony, I built a small Cone 10 downdraft kiln out of firebrick that is
roughly 5.6 cu ft. that I fire in reduction. It uses a MR750 burner with a
#50 orifice. It is basically a miniature of my big 75 cu ft downdraft
kiln. I built it as a test kiln for glazes. You could check with Mark Ward
but I think I get less BTU's than the 500,000 you mentioned, so yours would
probably be adequate. By the way, if you have Mark Ward's catalogue in the
back it gives you a method for calculating the amount of BTU's you need
based on the cubic feet of your kiln. Finally, my propane supply comes from
a lead off my main supply to the big kiln. If you plan on using a small
tank, you may not have enough to finish the firing. I fire to Cone 10 in
reduction over about 12 to 14 hours, just like my big kiln, and probably use
close to 5 gallons of propane (Estimate only).
> -----Original Message-----
> From: Ceramic Arts Discussion List [mailto:CLAYART@LSV.CERAMICS.ORG]On
> Behalf Of Tony Ferguson
> Sent: Saturday, May 12, 2001 11:52 PM
> To: CLAYART@LSV.CERAMICS.ORG
> Subject: Smallest Cone10 kiln experiment: Why ask Why?
>
>
> Guess I won't offer any advice on adding bentonite to
> slip.
>
> On another matter, has anyone built a small cone 10
> kiln out of fiber or brick (like a large garbage can
> size) and successfully fired it to cone 10 with
> reduction using a 500,000 btu weed burner and a
> propane tank? Haven't done it thinking of trying it
> to see if it would work.
>
> Experimenting in Duluth
> Tony Ferguson
>
> =====
> --Tony Ferguson, fergyart@yahoo.com315 N. Lake Ave. Apt
> 401Duluth, MN 55806(218) 727-6339Looking to see, buy or barter
> artwork go to:http://acad.uwsuper.edu/www/aferguso/fergyart.htm
>
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>
Logan Oplinger on mon 14 may 01
Tony,
Last year I built a small cone 10 propane updraft reduction test kiln that works well. I used twenty one K28 IFB and 1000 deg. F. rated back-up insulation board (IB). Firing chamber is 9"x8"x9". Wall thickness is 2.5"IFB+1"IB. Burner is homemade venturi made using 1" G.I. pipe. The burner port is 2" round, & enters from the bottom. The bottom mullite shelf (7"x7"x5/8") warped a bit over the first 8 hour test firing. Test tiles came out looking good, and not much different in color/surface than glazes fired in 45 cu. ft. cone 10 red. diesel kiln.
Logan Oplinger
---- you wrote:
> On another matter, has anyone built a small cone 10
> kiln out of fiber or brick (like a large garbage can
> size) and successfully fired it to cone 10 with
> reduction using a 500,000 btu weed burner and a
> propane tank? Haven't done it thinking of trying it
> to see if it would work.
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