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b.
After determining the offset dimension, refer to
Table 1 and find the "A" dimension closest to but
not less than the distance of shift needed for your
installation.
c.
The "B" dimension that coincides with the "A"
dimension represents the required vertical clear-
ance that is needed to complete the offset and
return.
d.
Read across the chart and find the number of
chimney sections required and the model number
of those particular chimney parts.
e.
Whenever the chimney penetrates a floor/ceiling,
a firestop spacer must be installed.
Offset Chart*
15°
A
1
5
/
"
8
2
7
/
"
8
–
4
1
/
"
2
–
6"
1
7
/
"
4
–
–
–
10
5
/
"
8
7
11
/
"
8
–
13
3
/
"
4
15"
16
1
/
"
2
18"
–
–
3
22
/
"
4
24"
25
7
/
"
8
*Proper assembly of air cooled chimney parts result in an overlap at chimney joints of 1
chart.
3-00
30°
B
A
B
13
3
/
"
3
7
/
"
14
1
/
8
8
17
3
/
"
6
1
/
"
18
5
/
4
4
–
8
5
/
"
22
3
/
8
23
5
/
"
9
1
/
"
23
3
/
8
4
–
11
5
/
"
27
7
/
8
29
3
/
"
12
1
/
"
29"
8
4
5
34"
14
/
"
33"
8
–
15
1
/
"
34
1
/
4
–
17
5
/
"
38
1
/
8
–
20
5
/
"
43
1
/
8
46
3
/
"
21
1
/
"
44
5
/
4
4
3
5
3
51
/
"
23
/
"
48
/
8
8
–
26
5
/
"
53
7
/
8
58
3
/
"
27
1
/
"
55
3
/
8
4
5
63"
29
/
"
59"
8
68
3
/
"
32
5
/
"
64
1
/
4
8
74
5
/
"
35
5
/
"
69
1
/
8
8
–
38
5
/
"
74
5
/
8
–
41"
78
3
/
7
5
91
/
"
44
/
"
85"
8
8
96
1
/
"
47"
89
1
/
2
103
1
/
"
50
5
/
"
95
1
/
2
8
RHW-44 WOODBURNING FIREPLACE
Example: Your "A" dimension from Figure 8 is 14
Using Table 1, the dimension closest to but not
less than 14
is then 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 [2] 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
TABLE 1
SL306
SL312
"
–
–
2
"
1"
–
8
"
2"
–
4
"
–
1"
4
"
1"
1"
8
–
–
–
2"
"
–
–
8
"
1"
–
4
"
–
–
2
"
–
–
8
"
1"
–
4
"
–
–
8
"
–
–
4
1"
–
"
–
1"
4
"
–
–
2
"
–
–
8
"
1"
–
4
–
–
"
1"
–
8
"
–
–
2
12
1
⁄
" is 14
5
⁄
" using a 30° offset/return. It
2
8
WARNING!
BE RESTRICTED.
SL318
SL324
SL336
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
1"
–
–
–
–
–
–
1"
–
–
1"
–
2"
–
–
–
–
1"
–
–
1"
–
2"
–
–
–
–
–
–
–
–
–
–
1"
–
–
–
1"
–
–
1"
–
–
–
1"
–
–
1"
–
–
–
1
/
". Effective length is built into this
4
1
⁄
".
2
SL348
–
–
–
–
–
–
–
–
–
–
–
–
–
1"
1"
1"
1"
1"
1"
1"
1"
2"
33147A
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