Bradford White EverHot TGHE-160I-NX Installation And Operation Instruction Manual page 33

Shortening of Vent Extensions
The polypropylene (PP) 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 17. 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.
damaged, which can result in the vent system no longer being air tight.
Improper installations of vent system and components, or failure to follow all installation instructions,
can result in property damage or serious injury.
Figure 16. Illustration Showing How to Shorten Vent Extensions.
Deburr all sharp edges.
WARNING
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Otherwise, the gaskets may get