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3 .
The "B" dimensions that coincide with the "A" dim-
ensions represent the required vertical clearance
that is needed to complete the offset and return.
4.
Read across the chart and find the number of
chimney sections required and the model number
of those particular chimney parts.
TABLE 1
15°
A
1
5
⁄
8
2
7
⁄
8
–
4
7
⁄
1 6
–
6
7
3
⁄
1 6
–
–
–
10
⁄
5
8
11
7
⁄
8
–
13
3
⁄
4
15
16
⁄
1
2
18
1
⁄
1 6
–
–
22
3
⁄
4
24
25
7
⁄
8
*Proper assembly of air cooled chimney parts result in an overlap at chimney joints of 1
chart.
4-99
Figure 8
Chimney Offset/Return
30°
B
A
B
13
3
⁄
3
7
⁄
14
7
⁄
8
8
1 6
17
3
⁄
6
1
⁄
18
9
⁄
4
4
1 6
–
8
⁄
22
⁄
5
11
8
1 6
23
9
⁄
9
1
⁄
23
3
⁄
1 6
4
4
–
11
5
⁄
27
7
⁄
8
8
29
3
⁄
12
1
⁄
28
15
⁄
8
4
1 6
34
14
5
⁄
33
1
⁄
8
1 6
–
15
⁄
34
⁄
1
1
4
8
–
17
5
⁄
38
1
⁄
8
4
–
20
5
⁄
43
7
⁄
8
1 6
46
⁄
21
⁄
44
⁄
3
1
9
4
4
1 6
51
3
⁄
23
5
⁄
48
11
⁄
8
8
1 6
–
26
5
⁄
53
13
⁄
8
1 6
58
3
⁄
27
1
⁄
55
3
⁄
8
4
4
62
15
⁄
29
5
⁄
59
1
⁄
1 6
8
1 6
68
⁄
32
⁄
64
⁄
3
5
1
4
8
4
74
9
⁄
35
5
⁄
69
7
⁄
1 6
8
1 6
–
38
5
⁄
74
5
⁄
8
8
–
41
78
3
⁄
4
91
7
⁄
44
5
⁄
85
1
⁄
8
8
1 6
96
1
⁄
47
89
1
⁄
2
8
103
1
⁄
50
5
⁄
95
7
⁄
2
8
1 6
EM SERIES WOODBURNING FIREPLACE
5.
Whenever the chimney penetrates a floor/ceiling,
a firestop spacer must be installed.
6. The effective height of the firebox assembly is
36
7
⁄
".
8
Example: Your "A" dimension from Figure 8 is 14
Using Table 1, the dimension closest to but not less
1
5
than 14
⁄
" is 14
⁄
2
determined from the table that you would need 33
(Dimension "B") between the offset and return. The
chimney components that best fit your application are
two SL312's.
DO NOT COMBINE OFFSETS TO
CREATE AN OFFSET GREATER
THAN 30° FROM VERTICAL. THIS
MAY CREATE A FIRE HAZARD
SINCE THE NATURAL DRAFT MAY
Offset Chart*
SL306
SL312
SL318
–
–
–
1
–
–
2
–
–
–
1
–
1
1
–
–
–
1
–
2
–
–
–
–
1
–
–
–
–
2
–
–
–
1
–
–
–
–
–
–
–
–
1
–
–
–
1
–
–
–
1
–
–
–
1
–
–
–
–
–
1
–
–
–
–
–
12
" using a 30° offset/return. It is then
8
WARNING!
BE RESTRICTED.
(Dimensions are in inches)
SL324
SL336
–
–
–
–
–
–
–
–
–
–
–
–
–
–
1
–
1
–
–
–
–
1
–
1
2
–
–
–
–
–
–
–
–
–
1
–
1
–
–
1
–
1
–
–
1
⁄
". Effective length is built into this
4
1
⁄
".
2
1
⁄
"
1 6
SL348
–
–
–
–
–
–
–
–
–
–
–
–
–
1
1
1
1
1
1
1
1
2
31316A
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