Maurice Weitman on mon 2 may 05
non-leaded glaze)
Arnold Howard wrote, in part:
>If you use a downdraft kiln vent, leave the plugs inserted throughout the
>firing, including the top plug. This is because the vent draws air from the
>bottom of the kiln. The plugs must be inserted to form adequate negative air
>pressure inside the kiln. Hold a lighted match above and level with a lid
>vent hole. The flame should be sucked toward the hole.
Hello, Arnold,
I'm sure your advice is generally correct, as usual, but perhaps you
are not aware that some downdraft vent systems (like my Bailey, for
instance) don't use lid vent holes; they instead rely on the top peep
being open while the vent is on.
I don't really like the peep being open, and I'll be drilling several
small holes around my lid so that I can fire with all peeps closed;
that's just too much air coming in at one point. Especially if one
wants to put a cone pack there!
Regards,
Maurice
| |
|
