Carole Fox on fri 10 may 02
First off- my computer has been cleaned of its virus- but many emails =
were lost and I'm afraid that some who answered my question about Hierro =
were never properly thanked. My apologies.
But now...I have dealt with the problem of insufficient venting on my L =
and L J230 electric kiln (with Orton downdraft vent) by drilling another =
exit hole near the original hole. Wahoo!- I can now glaze fire safely. =
But now I have a very cold bottom. Didn't mind the refires at first- =
they do acquire more depth! But now I'm ready to learn how to fix this =
problem. Last time, I fired the bottom ring 45 minutes longer but =
couldn't get that cone to lay down. I thought maybe it would relax more =
in the soak, as it was definitely soft, but it wasn't to be.
So.... Would it help to place a brick between the ware and the exit =
holes? Of course I would leave a space of a few inches between the brick =
and the holes. Or perhaps I need to start firing the bottom first and =
let the rest of the kiln catch up. I am assuming that it is not wise to =
just keep the bottom on high after the rest of the kiln has reached =
temperature, the top would overfire?-but I could be making that up.=20
Yes, I should get a book on electric kilns. It's on my list. But first- =
some new trimming tools.=20
-Carole- in Maryland, where the birds are singing so sweetly
Carole Fox
Elkton, MD
cfox@dca.net
Liz Gowen on fri 10 may 02
Carole, I have the same kiln with the same problem. Found that it
was corrected very nicely by adding a second kiln base. The lower
layer is now warmer than the top shelf. I know they are not cheap
but it saved considerably on the refires so pays itself off pretty
quickly.
Liz Gowen NJ USA
"can now glaze fire safely. But now I have a very cold bottom shelf
of the kiln
william schran on fri 10 may 02
Carole - Does your vent attach to side or bottom of kiln? I have the
Bailey single vent that is attached to bottom ring (side) of kiln
mounted with washers that keep the vent pipe about a quarter inch
from kiln wall. This allows some cooler air to mix with what is being
drawn from kiln and the draft is not so strong, but enough to exhaust
fumes. The top spy hole plug is left out during the firing. A few
test firings with cones at each level showed fairly even temps at all
levels.
Hope this helps.
Bill
Ababi on sat 11 may 02
In my kiln there the bottom is the hottest and the top is the coldest.
This is the only reason I use cones, to learn how to build the shelves
to late the air flow better to learn where to make a small or a big
distance between the shelves.
(I did not read your letter Carole so I hope I answer the right
question)
---------- Original Message ----------
>Carole - Does your vent attach to side or bottom of kiln? I have the
>Bailey single vent that is attached to bottom ring (side) of kiln
>mounted with washers that keep the vent pipe about a quarter inch
>from kiln wall. This allows some cooler air to mix with what is being
>drawn from kiln and the draft is not so strong, but enough to exhaust
>fumes. The top spy hole plug is left out during the firing. A few
>test firings with cones at each level showed fairly even temps at all
>levels.
>Hope this helps.
>Bill
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