Use and Care Guide

12
Vertical Termination
The vertical exhaust outlet requires a return bend or two
medium or long sweep radius 90° elbows to keep the
exhaust outlet downward and prevent entry of rain. Do
not include these elbows when calculating the maximum
allowable vent pipe because they have already been
considered in the vent tables. The vertical exhaust outlet
termination is a 2 inch or 3 inch pipe which must be at
least 12 inches above the roof line or anticipated snow
levels. See figure 11.
NOTE: A rodent screen is available through the Parts
Department for installations where animals may be able to
access the vent system.
OUTLET VENT TERMINATIONS
Standard Horizontal Termination
The standard horizontal exhaust outlet termination is a
2 inch or 3 inch pipe which terminates 12 inches from
the outside wall (see figure 10). To prevent potential
condensate from collecting in the venting system slope
the vent at a downward pitch of 1/8” per 5ft. away from the
water heater.
Install the correct size coupling at the outside wall on the
exhaust to prevent the termination from being pushed
inward.
NOTE: A rodent screen is available through the Parts
Department for installations where animals may be able to
access the vent system.
Figure 10
Standard Horizontal Termination
2” Coupling
12” Min, above grade or
anticipated snow level.
Figure 11
Vertical vent termination
Anticipated
Snow Level
12” Min.
12” Min.
Exhaust
Air
Outlet