Exhaust
3" (75mm) or 4" (100mm)
"PL" or "L" Vent
Wall Thimble
45
o
Elbow with Screen
or Termination Cap
High Temperature RTV
Silicone Required
Fresh Air Intake
Wall framing
Wall thimble
Termination cap
Vent pipe
Horizontal frame
for thimble
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• Some horizontal through wall installations
may require a “T” and 3 to 5 feet (91
to 152 cm) of vertical pipe outside the
building to help draft the unit. This may
be required if a proper burn cannot be
maintained, after the stove has been
tested and the airflow set. This is due to
the back pressure in the exhaust caused
by airflow around the structure.
• Follow vent manufacturer guidelines for
installation of venting. High temp Sealent
must be used when connecting vent pipe
to the unit’s starter pipe. Improper seals
at the vent joints may cause combustion
by-products to leak into the room where
installed -
seal as required.
Installation
Figure 11: Straight through wall Installation.
10. The
pipe
must
extend at least
12” (30 cm) away
from the building.
If necessary, bring
another length of
pipe (PL type) to the
outside of the home
to connect to the
first section. Do not
forget to place high
temperature silicone
around the pipe that
passes through the
thimble.
11. Install a vertical pipe,
or if all requirements
for direct venting
are met, install
vent termination. The stainless steel cap termination manufactured by the vent manufacturer is
recommended. However, when the vent terminates several feet above ground level and there are no
trees, plants, etc. within several feet, a 45° elbow can be used as termination. The elbow must be
turned down to prevent rain from entering.
NOTE:
• It is recommended that horizontal through wall installations have 3 to 5 feet (91 to 152 cm) of vertical
pipe in the system to help naturally draft the unit in the event of extreme weather or a power outage.
Figure 12: Straight through Wall Installation - Side View.
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