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Continue to assemble chimney sections as
outlined above, making sure that both the
inner and outer pipe sections are locked to-
gether. When installing double wall snap-lock
chimney together, it is important to assure
the joint between the chimney sections is
locked. Check by pulling chimney upward
after locking. The chimney will not come apart
OFFSET
RISE
A
B
12"
4
/
"
16
/
"
3
3
8
8
9
/
"
25
/
"
1
3
1
4
2
12
/
"
30
/
"
3
3
4
4
15"
34
/
"
3
4
18"
40"
1
21
/
"
46
/
"
1
1
4
4
23
/
"
49
/
"
3
1
4
4
27
/
"
56
/
"
3
3
4
4
30"
60
/
"
3
4
33"
66"
f i r e - p a r t s . c o m
36"
71"
38
/
"
75"
1
4
41
/
"
80
/
"
1
1
1
4
4
45"
86
/
"
3
4
46
/
"
89
/
"
1
3
1
4
2
51"
97"
53
/
"
101"
1
4
56
/
" 106
/
"
1
1
4
4
59
/
" 111
/
"
1
1
4
2
61
/
" 115
/
"
1
3
1
4
2
64
/
" 120
/
"
3
3
4
4
68
/
"
127"
1
4
70"
130"
1
74
/
" 137
/
"
1
1
1
4
2
76
/
" 141
/
"
3
1
4
2
79
/
" 146
/
"
3
3
4
4
OFFSET CHART (22-50 FT. SYSTEM HEIGHT)
Screws
A
Figure 10 - Elbow Offset
127011-01A
VENTING INSTALLATION
CHIMNEY LENGTH
18"
24"
36"
ELBOW SET ONLY
1
1
1
1
1
1
1
1
1
2
1
1
2
1
1
2
1
1
1
2
1
2
1
2
4
B
www.SuperiorFireplaces.US.com
Continued
if properly locked. It is not necessary to add
screws to keep the chimney together (excep-
tion, see Figure 9).
USING ELBOW OFFSETS (30E-12DM)
1. To achieve desired offset, you may install
combinations of 12", 18", 24", 36" and 48"
length of double wall pipe (see offset chart
and Figure 9).
2. Chimney weight above offset rests on re-
48"
turn elbow. Straps must be securely nailed
to rafters or joists (see Figure 9, details A
and B).
3. Maximum length of pipe between sup-
ports (return elbow or 12S-12DM) is 6'
of angle run. Maximum of two 6' angle
run sections per chimney system (see
Figure 11, page 9).
1
4. All pipe connections between the offset
and return must be secured with two
screws on the outer pipe only (see
1
Figure 9). Do not penetrate the inner
1
stainless.
1
1
2
1
2
Detail B
Straps
2
Angle Firestop
1
2
1
1
Straps Detail A
Return Elbow
Figure 11 - Ceiling Support Pipe
CAUTION: THE STRUCTURAL
INTEGRITY OF THE MANUFACTURED
HOME FLOOR, WALL, AND CEILING/
ROOF MUST BE MAINTAINED.
WARNING: DO NOT INSTALL IN
SLEEPING ROOM OF MOBILE HOMES.
2" Min.
Straps
See Detail B
Straps
12S-12DM
See Detail A
9
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