Common Vent Termination Clearances - Navien NPE Installation & Operation Manual

5.7 Common Vent Termination Clearances

5.7.1 Direct Vent Application – Vertical Installation
12" (30 cm) min.
End
Cap
For more information about the installation of the
Note
flue, refer to "3.6.4 Terminating the Vent" on page
40.
5.7.2 Venting Intake and Exhaust to Different
Locations
End
Cap
60 Installing a Common Vent System
36" (91cm) min.
Exhaust
Intake
12" (30cm) min.
Drain
Exhaust
Intake
5.7.3 Direct Vent Application – Horizontal
Installation
The illustration is intended for reference purposes
Note
only.
Direct the exhaust away from any building
openings.
During cold weather situations, the temperature of
the exhaust will be much warmer than the ambient
air. Therefore, you will see water vapor being
produced at the termination.
Exhaust
Maximum
length 20'
(6 m)
Minimum
length 36"
Intake
(91 cm)