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Condensate Drain
Every vent system should utilize the condensate collector unless installed with a total vent length of less
than 5 ft (1.52 m). The condensate collector is incorporated into the water heater’s vent connection.
To prevent condensate from draining back to the water heater, the condensate collector and trap should
be used. The trap must be inspected annually for obstructions and water content in the trap. Provisions
must be made to properly drain and dispose of condensate; be aware that condensate is a highly
corrosive substance that could damage metals. The condensate draining hose should be subject to
inspection; kinks must be avoided. Dispose of condensate in accordance with local codes. Minimum
water level in the condensate trap must be 3 in. (75 mm).
Shortening of Vent Extensions
Figure 17. Illustration Showing How to Shorten Vent Extensions.
The aluminum inside pipe should always extend 0.4 in. (10 mm) beyond the white plastic outside pipe on
the male end of the vent extension. Always cut the male end of the vent pipe extension. Do not attempt
to cut the female end.
Figure 18. Illustration Showing How to Determine the Length to Cut Off.
Pipes overlap by 2.5 in. (65 mm). Therefore, when cutting to size, add 2.5 in. (65 mm) to the extension
pipe length (X) needed for installation. Deburr all sharp edges. Otherwise, the gaskets may get
damaged, which can result in the vent system no longer being air tight.
WARNING
Improper installations of vent system and components, or failure to follow all installation instructions,
can result in property damage or serious injury.