20
INSTALLATION CONSIDERATIONS
12" MINIMUM
VENT/FLUE TEE
OR
90° ELBOW TURNED
DOWN
12" MINIMUM ABOVE
HIGHEST ANTICIPATED
SNOW LEVEL
90% Furnace Horizontal Termination (Single Pipe) Above
Highest Anticipated Snow Level
NOTE:
Terminate both pipes in the same pressure zone
(same side of roof, no major obstacles between pipes, etc.).
COMBUSTION AIR INTAKE
(OPTIONAL)
*Not required for
single pipe installation
TEE (OPTIONAL)
96
” M
AX
. -
3”
M
IN
.
RO
OF
LIN
E
INTAKE
SCREEN
OPTIONAL
12” MIN
HEIGHT DIFFERENCE
BETWEEN
INTAKE AND VENT
12” MIN TO ROOF OR HIGHEST
ANTICIPATED SNOW LEVEL
STRAIGHT
ELBOWS
1
2
3
4
5
6
7
8
2
75
71
67
63
60
56
52
48
3
126
120
115
110
105
99
94
89
2
37
33
30
26
22
18
15
11
3
107
102
96
91
86
81
75
70
2
100
95
90
85
80
75
70
65
3
168
161
154
147
140
133
126
119
2
50
45
40
35
30
25
20
15
3
143
136
129
122
115
108
101
94
2
60
55
50
45
40
35
30
25
3
113
106
99
92
85
78
71
64
2
60
55
50
45
40
35
30
25
3
120
113
106
99
92
85
78
71
2
45
40
35
30
25
20
15
10
3
103
96
89
82
75
68
61
54
2
45
40
35
30
25
20
15
10
3
151
144
137
130
123
116
109
102
DM 96VE1205DN
3
185
178
171
164
157
150
143
136
2
100
95
90
85
80
75
70
65
3
110
103
96
89
82
75
68
61
2
45
40
35
30
25
20
15
10
3
110
103
96
89
82
75
68
61
2
35
30
25
20
15
10
5
NA
3
103
96
89
82
75
68
61
54
2
45
40
35
30
25
20
15
10
3
110
103
96
89
82
75
68
61
DC96VE0603BN
DC96VE0803BN
DC96VE1005CN
DM 96VE0603BN
^
DM 96VE0803BN
DM 96VE0804CN
DM 96VE1004CN
DM 96VE1005CN
DC96VE0403BN
DM96VE & DC96VE Direct Vent (2 - Pipe) and Non-Direct Vent (1- Pipe)
(6)
Maximum Allowable Length of Vent/Flue Pipe
MODEL
Pipe Size
(4)
(in.)
Number of Elbows
(3) (5)
DM 96VE0302BN
&
DM 96VE0402BN
DM 96VE0303AN
&
DM 96VE0403AN
DM 96VE0603AN
^
2.5” pipe may be used instead of 2” pipe.
For installations at or above 7,000 altitude use 3” venting (and combustion air pipe if applicable)
