Marcia Selsor on tue 27 jul 99
I forgot to mention the "bible of arch building" in the previous
message.
For those who don't want a flat top for some unknown reason (remember
the arch versus flat top thread of yester year?)
There was a handbook from the now defunct AP Green brick manufacturers
that had the rise and span for an arch with the consequent bricks
needed. Ex. 1.608" rise/foot for 36" span need 13 #1 arch bricks 4
straights total 17 for course. Brand 4160-A for skew brick.
I didn't have books when I started building kilns with the exception of
this one and pratcial experience in school. Phila. College of Art where
we built all our kilns back then (60's).
Dear Mel and Nils, I still prefer sprung arches to flat tops and I
canm't tell you why. But, I like arches and I even make them in clay for
arts sake. I built a flat top once and replaced it with an arch -just
cause that's what I'm used to. My new raku car kiln will be a flat top.
Marci
Richard Gralnik wrote:
>
> ----------------------------Original message----------------------------
> Sam,
>
> You'll probably get better answers from the gurus on line, but I'll add my $.0
> based on the kiln I just finished building:
>
> >1) What range of BTU would be needed to fire an approximately 20 square foot
> >kiln. (yes, I know there are a lot of factors, but a close guess is fine!)
>
> I think Fred Olson's book recommends 9000 BTU per cubic foot.
>
> >2) Can A gas kiln be fired on propane?
>
> Yes. Marc Ward can tell you more precisely (check the archives too) but you
> basically need to change the orifices on your burners to sizes for propane.
> Check out the info about the different types of delivery systems for getting
> the propane to the kiln without freezing your tanks. Check out the info on
> propane safety too.
>
> >3) And MOST importantly, can someone recommend a book on building your own
> >gas fired kiln?
>
> The source for answers on this one is Steve Branfman (sbranfpots@aol.com)
> who runs The Potter's Shop in Needham, MA. The ones I used are:
>
> The Art of Firing - Nils Lou (on clayart). I believe this book's latest
> edition has the
> plans for the Minnesota Flat Top kiln published separately. Buy both
> Read them about 5 times before you do *ANYTHING* else.
>
> The Energy Efficient Potter - Regis Brodie Check InterLibrary Loan for
> this. It's
> been out of print for a while.
>
> The Kiln Book - Fred Olson
>
> Kilns (?) - Daniel Rhodes
>
> Karl Platt always recommended the North American Combustion Handbook from
> the North American manufacturing company (Sorry I don't have the exact info.)
>
> Make a point of reading the Clayart Archives too. The wisdom (and wit) of
> the people on this list is beyond price. I have megabytes of email and pages
> of notes from phone calls not to mention kiln blueprints, photos and other
> things shared by the indescribably generous people who are clayart.
>
> Richard
--
Marcia Selsor
selsor@imt.net
http://www.imt.net/~mjbmls
http://www.imt.net/~mjbmls/spain99.html
http://www.silverhawk.com/ex99/selsor/welcome.html
Marc Ward on thu 29 jul 99
<<that had the rise and span for an arch with the consequent bricks
needed>>>>
AP Green is alive and well...it just now resides in the belly of
Harbinson-Walker Refractories who bought AP Green. The handbook is still
available.
Marc Ward
Ward Burner Systems
PO Box 333
Dandridge, TN 37725
USA
423.397.2914 voice
423.397.1253 fax
wardburner@aol.com
Richard Gralnik on thu 29 jul 99
Marcia,
I tried to get a copy of the AP Green catalog just to have those arch
configuration
pages. They could never find any to send me. (Things that make you say,
"Hmmm".)
The information is reproduced in the back of Fred Olson's book.
Richard
At 05:41 PM 7/27/99 -0400, you wrote:
>----------------------------Original message----------------------------
>I forgot to mention the "bible of arch building" in the previous
>message.
>For those who don't want a flat top for some unknown reason (remember
>the arch versus flat top thread of yester year?)
>There was a handbook from the now defunct AP Green brick manufacturers
>that had the rise and span for an arch with the consequent bricks
>needed. Ex. 1.608" rise/foot for 36" span need 13 #1 arch bricks 4
>straights total 17 for course. Brand 4160-A for skew brick.
>I didn't have books when I started building kilns with the exception of
>this one and pratcial experience in school. Phila. College of Art where
>we built all our kilns back then (60's).
>Dear Mel and Nils, I still prefer sprung arches to flat tops and I
>canm't tell you why. But, I like arches and I even make them in clay for
>arts sake. I built a flat top once and replaced it with an arch -just
>cause that's what I'm used to. My new raku car kiln will be a flat top.
>Marci
>
>Richard Gralnik wrote:
> >
> > ----------------------------Original message----------------------------
> > Sam,
> >
> > You'll probably get better answers from the gurus on line, but I'll add
> my $.0
> > based on the kiln I just finished building:
> >
> > >1) What range of BTU would be needed to fire an approximately 20
> square foot
> > >kiln. (yes, I know there are a lot of factors, but a close guess is
> fine!)
> >
> > I think Fred Olson's book recommends 9000 BTU per cubic foot.
> >
> > >2) Can A gas kiln be fired on propane?
> >
> > Yes. Marc Ward can tell you more precisely (check the archives too)
> but you
> > basically need to change the orifices on your burners to sizes for propane.
> > Check out the info about the different types of delivery systems for
> getting
> > the propane to the kiln without freezing your tanks. Check out the info on
> > propane safety too.
> >
> > >3) And MOST importantly, can someone recommend a book on building your own
> > >gas fired kiln?
> >
> > The source for answers on this one is Steve Branfman (sbranfpots@aol.com)
> > who runs The Potter's Shop in Needham, MA. The ones I used are:
> >
> > The Art of Firing - Nils Lou (on clayart). I believe this book's latest
> > edition has the
> > plans for the Minnesota Flat Top kiln published
> separately. Buy both
> > Read them about 5 times before you do *ANYTHING* else.
> >
> > The Energy Efficient Potter - Regis Brodie Check InterLibrary Loan for
> > this. It's
> > been out of print for a while.
> >
> > The Kiln Book - Fred Olson
> >
> > Kilns (?) - Daniel Rhodes
> >
> > Karl Platt always recommended the North American Combustion Handbook from
> > the North American manufacturing company (Sorry I don't have the exact
> info.)
> >
> > Make a point of reading the Clayart Archives too. The wisdom (and wit) of
> > the people on this list is beyond price. I have megabytes of email and
> pages
> > of notes from phone calls not to mention kiln blueprints, photos and other
> > things shared by the indescribably generous people who are clayart.
> >
> > Richard
>
>--
>Marcia Selsor
>selsor@imt.net
>http://www.imt.net/~mjbmls
>http://www.imt.net/~mjbmls/spain99.html
>http://www.silverhawk.com/ex99/selsor/welcome.html
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