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Heat & Glo • ESC-42ST • 2146-900 Rev. o • 5/12 27
H
2
H
1
V
1
INSTALLED
HORIZONTALLY
1. Top Vent - Horizontal Termination
V
1
H
1
Figure 7.3
Figure 7.4
1. Top Vent - Horizontal Termination
One Elbow
Two Elbows
Fire Risk. Explosion Risk.
Do NOT pack insulation or other combustibles between ceiling fi restops.
• ALWAYS maintain specifi ed clearances around venting and fi restop systems.
• Install wall shield and ceiling fi restops as specifi ed.
Failure to keep insulation or other material away from vent pipe may cause fi re.
WARNING
V
1
Minimum H
1
Maximum
2 ft 610 mm 7 in* 178 mm
3 ft 914 mm 2 ft 610 mm
4 ft 1.2 m 4 ft 1.2 m
5 ft 1.5 m 9 ft 2.7 m
6 ft 1.8 m 12 ft 3.7 m
7 ft 2.1 m 14 ft 4.3 m
10 ft 3.0 m 20 ft 6.1 m
20 ft 6.1 m 40 ft 12.2 m
After V
1
= 6 ft then H
1
= 2 x V ft Maximum
V
1
+ H
1
= 60 ft Maximum
*when used with approved termination caps
V
1
Minimum
H
1
+ H
2
3 ft 914 mm 18 in 457 mm
4 ft 1.2 m 3 ft 914 mm
5 ft 1.5 m 7 ft 2.1 m
6 ft 1.8 m 10 ft 3.0 m
7 ft 2.1 m 12 ft 3.7 m
10 ft 3.0 m 18 ft 5.5 m
20 ft 6.1 m 20 ft 6.1 m
After V
1
= 6 ft then H
1
= 2 x V
1
ft Maximum
V
1
+ H
1
+ H
2
= 60 ft Maximum
H
1
+ H
2
= 20 ft Maximum
Note: Must have a 24 inches minimum
vertical vent before attaching any
elbow to the appliance.
Note: Flue restrictor is permit-
ted ONLY on 30 ft. minimum
vertical runs with no elbows.
Note: Flue restrictor is permit-
ted ONLY on 30 ft. minimum
vertical runs with no elbows.
Note: Must have a 24 inches minimum
vertical vent before attaching any
elbow to the appliance.