Hart – Skutt EnviroVent 2 User Manual
Page 6
6
66
s
eTup
Kiln Chamber
Depth
Drill This Many
Holes In Slab
Drill This Many
Holes In Lid
Drill Size
Kiln Cubic Feet
714 and GlazeTech
1
2
3/16”
1.1 thru 1.4
Eight Sided
14”
1
2
3/16”
2
18” and 22”
1
2
3/16”
2.3 thru 3.2
27”
2
3
3/16”
3.5 thru 3.9
Ten Sided
14”
2
3
3/16”
3.5
18”
2
3
3/16”
4.2 thru 4.6
27” and 22”
3
3
3/16”
5.3 thru 7.0
Twelve Sided
14”
1
2
1/4”
5
18”
1
2
1/4”
6.6
27” and 22”
2
3
1/4”
8.1 thru 9.9
31”
2
3
1/4”
11.6
S
tEp
3 - d
rilling
holES
in
thE
kiln
floor
• Locate and mark the center of the kiln floor.
• Use Diagram #1 as a guide to drill the appropriate hole(s) in the kiln
floor. Important: The holes in the floor must fit within a 1 1/2”
diameter circle at the center of the floor.
• Use an electric drill with the correct size bit. Drill slowly, keeping
the drill straight. Precision and care are important to avoid drilling
an oversize hole or chipping of the floor underside.
S
tEp
4 - d
rilling
holES
in
thE
kiln
lid
• Measure the thickness of the kiln sidewall fire brick and add 1” to
this measurement. This will be the distance from the outside edge
of the kiln that your holes will be drilled.
• Space the holes evenly around the kiln lid but no closer to the edge
than the distance above. Because the holes introduce room tem-
perature air into your kiln, they must not be clustered together or
directly above the thermocouple. Refer to diagram #2 for proper
hole location and spacing.
• Drill the holes in the lid using the same method as used for the
floor.
• Vacuum out any brick dust from inside your kiln caused during the drilling.
v
Ent
h
olE
c
hart
Diagram #1
Placement of holes in kiln floor
"
1.5
3 Holes
2 Holes
"
1.5
Diagram #2
Placement of holes in kiln lid
4"
4"
3 Holes
2 Holes