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112127-01C
10
ventinG instaLLation
Continued
For Vertical Termination:
Measure the dis-
tance from the burner system flue outlet to the
ceiling. Add the ceiling thickness, the vertical
rise in an attic or second story, and allow for
sufficient vent height above the roofline. You
may use up to three 90° elbows, depending on
venting configuration. See
Vertical Termina-
tion Configurations
on page 15.
Note: You may use up to two 45° elbows in
place of a 90° elbow. You must follow rise to
run ratios when using 45° elbows.
For two-story applications, firestops are
required at each floor level (see Figure 21,
page 12). If an offset is needed in the attic,
additional pipe and elbows will be required.
You may use a chase with a vent termina-
tion with exposed pipe on the exterior of
the house. See
Installing Vent System in a
Chase
, below.
Your stove with direct-vent burner system
has been tested for a maximum horizontal
run of 20' with 8' vertical rise (see
Installation
for Horizontal Termination
, column 2). The
maximum vertical run is 40' (see
Installation
for Vertical Termination
, page 13).
It is very important that the venting system
maintain its balance between the combustion
air intake and the flue gas exhaust. Certain
limitations apply to vent configurations and
must be strictly followed.
Installing Vent System in a Chase
A chase is a vertical box-like structure built to
enclose venting that runs along the outside
of a building. A chase is not required for such
venting.
NOTICE: Treatment of firestops
and construction of the chase
may vary from building type to
building type. These instruc
-
tions are not substitutes for the
requirements of local building
codes. you must follow all local
building codes.
Note: When installing in a chase, you should
insulate the chase as you would the outside
walls of your home. This is especially impor-
tant in cold climates. Minimum air space clear-
ance between vent pipes and combustible
materials and/or insulation is 1".
INSTALLATION FOR HORIzONTAL
TERMINATION
CAUTION: Horizontally ter-
minated venting configurations
require one foot of vertical rise
from the 45° elbow before any
horizontal run can be made.
Failure to meet venting require
-
ments may cause performance
problems and possible damage
to the fireplace.
1. Determine the route your horizontal vent
-
ing will take.
Note: The location of the
horizontal vent termination on the exte-
rior wall must meet all local and national
building codes and must not be blocked
or obstructed.
WARNING: Do not recess vent
terminal into a wall or siding.
Snorkel terminations are available for
terminations requiring a vertical rise on the
exterior of the building (see Figure 10 and
Figure 11, page 11). Snorkel kit VKS-47-K
is also available (see page 22). Follow
the same installation procedures used
for standard horizontal termination with
the exception of the external wall firestop.
The snorkel termination does not require
the use of the external wall firestop. If
installing the snorkel termination below
Figure 10 - Snorkel Termination
Snorkel
12" Minimum
(30.5 cm)
