6 720 644 930
Installation instructions
15
3.3.3
Venting configuration examples
Below are approved examples of horizontal
venting installations.
Fig. 13 Horizontal side wall venting installation (single
pipe penetration)
Fig. 14 Horizontal venting installation (combustion air
piping not shown)
Warning: Single pipe penetration should be used in
non-freezing climates only!
Important:
Note: Pitch horizontal runs down toward the heater,
except horizontal run between last elbow and termina-
tion which must slope down to termination 1/4" per
foot.
Note: For horizontal terminations, venting must
terminate once it penetrates to the outside of the
structure. There must be no sections of vent pipe
exposed to the outdoors.
Fig. 15 Horizontal venting installation (concentric
penetration)
Fig. 16 Horizontal twin pipe penetration
Below are approved examples of vertical venting
installations.
Important:
Note: Pitch horizontal runs down toward the heater,
1/4" per foot.
4"
6720608542-02.2AL
HORIZONTAL RUN
1/4" PER FOOT
DOWN TO
TERMINATOR.
CONDENSATE
DRAIN
4"
HORIZONTAL RUN
DOWN TO
TERMINATOR.
SIDE
OF
WATER
HEATER
NOTE:
MINIMUM 1FT OF
STRAIGHT VENT PIPE
REQUIRED
6720608542-10.1V
12"
6720608782-11.2V
6720608542-05.3V
<
<
26ft
with
3" v
enting
60ft
with
4" v
enting