Vent Termination; Direct Vent, Two Pipe Roof And Sidewall Vent Terminations - Westinghouse WBRC**140F Manual

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E. VENT TERMINATION

1. Direct Vent, Two Pipe Roof and Sidewall Vent Terminations

Figure 10 – Direct Vent, Roof and Sidewall Vent Terminations
All vent pipes must be glued, properly supported, and the exhaust must be pitched a minimum of ¼" per foot back to the appliance to
allow drainage of condensate. When placing support brackets on vent piping, the first bracket must be within 1 foot of the appliance and
the balance at 4 foot intervals on the vent pipe. Appliance venting must be readily accessible for visual inspection for the first three feet
from the appliance.
WHL-015 REV. 5.20.16