mel jacobson on tue 6 dec 11
i think we could post this message on
clayart every day and many would never listen.
bisque fire long and slow.
give the kiln a little room inside to breath.
do not over pack bisque.
the punishment for fast bisque will always
be your best pot has a serious glaze flaw. you throw
it out and pout for a week. and that makes ron, john and mel
smile.
i bisque fire for about 16 hours.
i overnight fire with one switch on low.
turn it all low in the morning.
noon to medium.
3 o'clock to high. done very soon
after i hit high.
the kiln top is always stacked with greenware in
a pyramid with heavy pots on the outer edge over the
walls. don't waste all that heat. i never have cracking
or bloating.
you use the same amount of energy firing
slow as fast.
you draw x amount of amps to reach x temp.
low amps, long time...same as high amps for
a quick firing. (that is always a +- thing, it is pennies
difference.)
but fast firing means you lose your best pots..
what is that worth? you may as well throw your
best pots out before you glaze fire...save the middle man.
mel
we sure fusssed over bisque in japan.
we had a huge cupboard that had a gas heater
and warmed all pots to about 150F overnight.
(like 300 pots.)
then loaded them for a slow bisque next day.
never had flaws...never. the old man would
have sh#^bricks if there was a flaw.
from: minnetonka, mn
website: http://www.visi.com/~melpots/
clayart link: http://www.visi.com/~melpots/clayart.html
Steve Mills on wed 7 dec 11
Mel, add to that for electric kilns; a vent to allow the fumes from burning=
t=3D
he crap that's in the clay to escape and not get trapped by the resulting r=
e=3D
duction in the bisque.=3D20
Steve M
Steve Mills
Bath
UK
www.mudslinger.me.uk
Sent from my Ipod touch
On 6 Dec 2011, at 15:22, mel jacobson wrote:
> i think we could post this message on
> clayart every day and many would never listen.
>=3D20
> bisque fire long and slow.
> give the kiln a little room inside to breath.
>=3D20
> do not over pack bisque.
>=3D20
> the punishment for fast bisque will always
> be your best pot has a serious glaze flaw. you throw
> it out and pout for a week. and that makes ron, john and mel
> smile.
>=3D20
> i bisque fire for about 16 hours.
> i overnight fire with one switch on low.
> turn it all low in the morning.
> noon to medium.
> 3 o'clock to high. done very soon
> after i hit high.
>=3D20
> the kiln top is always stacked with greenware in
> a pyramid with heavy pots on the outer edge over the
> walls. don't waste all that heat. i never have cracking
> or bloating.
>=3D20
> you use the same amount of energy firing
> slow as fast.
>=3D20
> you draw x amount of amps to reach x temp.
> low amps, long time...same as high amps for
> a quick firing. (that is always a +- thing, it is pennies
> difference.)
> but fast firing means you lose your best pots..
> what is that worth? you may as well throw your
> best pots out before you glaze fire...save the middle man.
> mel
> we sure fusssed over bisque in japan.
> we had a huge cupboard that had a gas heater
> and warmed all pots to about 150F overnight.
> (like 300 pots.)
> then loaded them for a slow bisque next day.
> never had flaws...never. the old man would
> have sh#^bricks if there was a flaw.
> from: minnetonka, mn
> website: http://www.visi.com/~melpots/
> clayart link: http://www.visi.com/~melpots/clayart.html
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