William & Susan Schran User on mon 25 jul 11
On 7/25/11 5:19 PM, "Felicity Rich" wrote:
> I am using propane to fire a raku top hat kiln and am having trouble with=
the
> burner sputtering when I turn up the gas so the firing is taking too long=
.
> Please help.
Need more information about the burner - what brand/type?
Does it have the proper orifice size for firing with propane.
How high of pressure are you turning it up to?
May not need such high gas pressure.
Bill
--
William "Bill" Schran
wschran@cox.net
wschran@nvcc.edu
http://www.creativecreekartisans.com
Felicity Rich on mon 25 jul 11
Hello All,
I am using propane to fire a raku top hat kiln and am having trouble with t=
he
burner sputtering when I turn up the gas so the firing is taking too long.
Please help.
Thank you,
Felicity Rich
Conrad Krebs on tue 26 jul 11
Hi Felicity,
I'm sure there are people out there that know way more about this than I
do, but perhaps your line is freezing. Are you drawing propane from two
tanks simultaneously? Also, if something is blocking the updraft through
the kiln (the shelves for example), or if you're getting frequent down
drafts from breezes, that may be affecting kiln performance as well.
Conrad
James Freeman on tue 26 jul 11
Felicity...
Do you have the burner tip too deep into the kiln? That will cut down on
secondary air, and can lead to problems such as you describe. The burner
tip should be outside of the kiln, perhaps 3/4" or so.
Just a blind guess.
...James
James Freeman
"...outsider artists, caught in the bog of their own consciousness, too
preciously idiosyncratic to be taken seriously."
"All I say is by way of discourse, and nothing by way of advice. I should
not speak so boldly if it were my due to be believed."
-Michel de Montaigne
http://www.jamesfreemanstudio.com
http://www.flickr.com/photos/jamesfreemanstudio/
http://www.jamesfreemanstudio.com/resources
On Mon, Jul 25, 2011 at 5:19 PM, Felicity Rich wrote:
> Hello All,
>
> I am using propane to fire a raku top hat kiln and am having trouble with
> the
> burner sputtering when I turn up the gas so the firing is taking too long=
.
> Please help.
>
> Thank you,
>
> Felicity Rich
>
William & Susan Schran User on wed 27 jul 11
On 7/26/11 8:05 PM, "James Freeman" wrote:
> Do you have the burner tip too deep into the kiln? That will cut down on
> secondary air, and can lead to problems such as you describe. The burner
> tip should be outside of the kiln, perhaps 3/4" or so.
Good call James.
I keep the burner 2-3" away from the burner port.
Bill
--
William "Bill" Schran
wschran@cox.net
wschran@nvcc.edu
http://www.creativecreekartisans.com
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