Desa (V)B36 Owner's Operation And Installation Manual page 9

Straps
Detail A
Return Elbow
OFFSET RISE
A B
4 / " 16 / "
3 3
8 8
9 / " 25 / "
3 1
4 2
12 / " 30 / "
3 3
4 4
15" 34 / "
3
4
18" 40"
21 / " 46 / "
1 1
4 4
23 / " 49 / "
3 1
4 4
27 / " 56 / "
3 3
4 4
30" 60 / "
3
4
33" 66"
36" 71"
38 / " 75"
1
4
41 / " 80 / "
1 1
4 4
45" 86 / "
3
4
46 / " 89 / "
3 1
4 2
51" 97"
53 / " 101"
1
4
56 / " 106 / " 2
1 1
4 4
59 / " 111 / "
1 1
4 2
61 / " 115 / "
3 1
4 2
64 / " 120 / " 2
3 3
4 4
68 / " 127"
1
4
70" 130"
74 / " 137 / " 1
1 1
4 2
76 / " 141 / " 1
3 1
4 2
79 / " 146 / "
3 3
4 4
OFFSET CHART (22-50 FT. SYSTEM HEIGHT)
109034-01M
VENTING INSTALLATION
Straps
Straps
Figure 10 - Ceiling Support Pipe 12S-8DM
CHIMNEY LENGTH
48" 36" 24" 18" 12"
ELBOW SET ONLY
1
1
1
1
1 1
1
1 1
1
1 1
2
1 1
2
1 1
1 1
2 1
1 1 1
2
1
1 2
2 1
2
2 1
4
Figure 11 - Elbow Offset
www.fmiproducts.com
Continued
Ceiling Support
Pipe 12S-8DM
Straps
Detail B
Angle
Firestop
1
1
Screws
1
1
1
1
1
1
2" Min.
See Detail B
B
A
See Detail A
9