42 | Installation
6.8.2 Approved examples of horizontal and vertical venting
installation
NOTICE:
▶ Place pipe supports every 5 feet (1 525 mm) of
horizontal and vertical run, beginning with support
near boiler.
▶ The condensate must be disposed of in accordance
with applicable rules.
▶ Periodic cleaning of the vent terminal and
air-intake screens is mandatory.
▶ Avoid locating vent terminals near equipment or
building features which can be subject to degradation
from exhaust gases.
▶ If multiple boilers are installed in a row, allow at least
1 foot (305 mm) clearance between the vent
termination of one and the combustion air intake of
the other.
1
2
Fig. 32 Horizontal venting system (room air only)
2
1
Fig. 33 Horizontal venting system (room air only)
Key to Fig. 32 and Fig. 33:
[1]
Intake
[2]
Exhaust
6 720 806 992 (2015/03)
Fig. 34 Horizontal venting system (sealed combustion)
2
6 720 641 933-06.2O
2
≥ 4"
(102 mm)
Fig. 35 Horizontal venting system (sealed combustion)
6 720 641 933-62.2O
Key to Fig. 34 and Fig. 35:
[1]
[2]
[3]
≥ 4"
(102 mm)
2
1
2
1
3
2
1
Intake, behind exhaust
Exhaust
Wall termination
6 720 641 933-63.2O
6 720 641 933-05.2O
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