Carole Fox on sat 25 jan 03
When is it safe to turn off the kiln venting system? Can you turn it off
before the soaking period or must you wait until the kiln is totally turned
off?
Carole Fox
Elkton, MD -lately listening to Sting and Jonatha Brooke in the studio
thesilverfox@dol.net
Carol Tripp on sun 26 jan 03
Hi Carole,
I leave my vent on until the end of the soak and then I close the peep hole
and turn off the vent for the fire down. (I have a Bailey vent system.)
Best regards,
Carol
Dubai, UAE
Carole wrote:
>When is it safe to turn off the kiln venting system? Can you turn it off
>before the soaking period or must you wait until the kiln is totally turned
>off?
>
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Ron Roy on mon 27 jan 03
Hi Carol,
Depends what aspect of safe you mean.
If you want to be sure all combustibles are out of the bisque fired ware I
would say after the soak.
If you want your glazes to cool fast and be glossy wait till 800C.
If you want mattes to develop better turn it off during the soak or just
before - that will help even the kiln out as well.
For sure - you don't want to go thought the quartz inversion at 573C with
the vent on - especially important with bisque firings. Fast cooling is not
good for any ware - read uneven cooling. It is much more of a concern after
glazes have solidified - only then do the stresses occur between solidified
glazes and bodies. Glazes freeze anywhere between about 800C and 500C
depending on the type of glaze and what temperature it melts at.
RR
>When is it safe to turn off the kiln venting system? Can you turn it off
>before the soaking period or must you wait until the kiln is totally turned
>off?
>
>Carole Fox
>Elkton, MD -lately listening to Sting and Jonatha Brooke in the studio
>thesilverfox@dol.net
Ron Roy
RR#4
15084 Little Lake Road
Brighton, Ontario
Canada
K0K 1H0
Phone: 613-475-9544
Fax: 613-475-3513
Carole Fox on tue 28 jan 03
Thanks, Ron for once again coming to my aid. I was asking about an electric
cone 6 firing of glossy glazes. As my kiln is in my studio and my studio is
in the basement of our house, I was concerned about the fumes. I realize now
that it is probably of no advantage to turn it off before the soak and
aIso....I need to buy a pyrometer!
Carole Fox
Silver Fox Pottery
Elkton, MD
thesilverfox@dol.net
----- Original Message -----
From: "Ron Roy"
To:
Sent: Monday, January 27, 2003 7:36 PM
Subject: Re: Kiln vent safety question
> Hi Carol,
>
> Depends what aspect of safe you mean.
>
> If you want to be sure all combustibles are out of the bisque fired ware I
> would say after the soak.
>
> If you want your glazes to cool fast and be glossy wait till 800C.
>
> If you want mattes to develop better turn it off during the soak or just
> before - that will help even the kiln out as well.
>
> For sure - you don't want to go thought the quartz inversion at 573C with
> the vent on - especially important with bisque firings. Fast cooling is
not
> good for any ware - read uneven cooling. It is much more of a concern
after
> glazes have solidified - only then do the stresses occur between
solidified
> glazes and bodies. Glazes freeze anywhere between about 800C and 500C
> depending on the type of glaze and what temperature it melts at.
>
> RR
Arnold Howard on wed 29 jan 03
You can leave the vent turned on throughout firing and cooling.
Arnold Howard
Paragon
--- Carole Fox wrote:
> When is it safe to turn off the kiln venting system? Can you turn
> it off
> before the soaking period or must you wait until the kiln is
> totally turned
> off?
>
> Carole Fox
> Elkton, MD -lately listening to Sting and Jonatha Brooke in the
> studio
> thesilverfox@dol.net
>
>
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Carole Fox on wed 29 jan 03
Thanks, Ron for once again coming to my aid. I was asking about an electric
cone 6 firing of glossy glazes. As my kiln is in my studio and my studio is
in the basement of our house, I was concerned about the fumes. I realize now
that it is probably of no advantage to turn it off before the soak and
aIso....I need to buy a pyrometer!
Carole Fox
Silver Fox Pottery
Elkton, MD
thesilverfox@dol.net
----- Original Message -----
From: "Ron Roy"
To:
Sent: Monday, January 27, 2003 7:36 PM
Subject: Re: Kiln vent safety question
> Hi Carol,
>
> Depends what aspect of safe you mean.
>
> If you want to be sure all combustibles are out of the bisque fired ware I
> would say after the soak.
>
> If you want your glazes to cool fast and be glossy wait till 800C.
>
> If you want mattes to develop better turn it off during the soak or just
> before - that will help even the kiln out as well.
>
> For sure - you don't want to go thought the quartz inversion at 573C with
> the vent on - especially important with bisque firings. Fast cooling is
not
> good for any ware - read uneven cooling. It is much more of a concern
after
> glazes have solidified - only then do the stresses occur between
solidified
> glazes and bodies. Glazes freeze anywhere between about 800C and 500C
> depending on the type of glaze and what temperature it melts at.
>
> RR
Carole Fox
Elkton, MD
thesilverfox@dol.net
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