Heat & Glo • GEM-42B • 2096-900 Rev. H • 3/06
15
2. Top Vent - Vertical Termination
-
(continued)
Three Elbows
NOTE:
Must have an 18 inch minimum
vertical vent before attaching a 90
o
elbow
to the unit.
Figure 5.8
V
1
+ V
2
Minimum
H
1
+ H
2
Maximum
1.5 ft
457 mm
4 ft
1.2 m
2 ft
610 mm
7 ft
2.1 m
3 ft
914 m
10 ft
3.0 m
4 ft
1.2 m
13 ft
4.0 m
5 ft
1.5 m
16 ft
4.9 m
6 ft
1.8 m
19 ft
5.8 m
7 ft
2.1 m
22 ft
6.7 m
H
1
+ H
2
= 22 ft (6.7 m) Max.
V
1
+ V
2
+ H
1
+ H
2
= 62 ft (18.9 m) Max.
H
1
V
2
H
2
V
1
INSTALLED
HORIZONTALLY
NOTE:
Must have an 18 inch mini-
mum vertical vent before attach-
ing a 90
o
elbow to the unit.
V
1
H
1
V
2
Two Elbows
V
1
+ V
2
Minimum
H
1
Maximum
1.5 ft
457 mm
2 ft
610 mm
2 ft
610 mm
5 ft
1.5 m
3 ft
915 m
8 ft
2.4 m
4 ft
1.2 m
11 ft
3.4 m
5 ft
1.5 m
14 ft
4.3 m
6 ft
1.8 m
17 ft
5.2 m
7 ft
2.1 m
20 ft
6.1 m
8 ft
2.4 m
23 ft
7.0 m
H
1
= 23 ft (7.0 m) Max.
V
1
+ V
2
+ H
1
= 63 ft (19.2 m) Max.
Figure 5.7