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Installing a Vent (For common vent installation only)
Common Vent Clearances
Direct Vent Application – Vertical Installation
Exhaust gas
Intake air
36" (900 mm) min.
12" (300 mm) min.
12" (300 mm) min.
Drain
End
Cap
Caution
• Maintain 12" (300 mm) min. clearance above highest
anticipated snow level. Maximum of 24" (600 mm) above
roof.
• Install a bird screen at the end of the intake air pipe and
exhaust pipe.
Notice
• Intake and exhaust pipes do not have to terminate in the same area.
Venting Intake and Exhaust to Different
Locations
Direct Vent Application – Horizontal Installation
Maximum length
20' (600 cm)
Minimum length
36" (910 mm)
Exhaust
Intake
Notice
• The illustration is intended for reference purposes 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.
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