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QUALIFIED
INSTALLER
Vent Termination
• The vent terminal must be located on a side wall or
through the roof. Where possible, venting through the
roof is preferable to sidewall venting to avoid products
of combustion from accumulating in outdoor spaces.
• Typically, outdoor spaces are not totally enclosed by
solid continuous walls. When sidewall venting is used,
the vent terminal will need to be located to avoid prod-
ucts of combustion from accumulating within the out-
door space or from entering the interior space through
doors and windows. See clearances listed below with
respect to openings to interior spaces.
• When a sidewall vent terminal terminates below an
overhead cover (either permanent or temporary cover)
at least 30% of the total perimeter wall area surrounding
the outdoor space must
be openings.
KEY
A
Clearance above grade, verandah, porch, deck or balcony
B
Clearance to window or door leading to inside space that may be opened
C
Clearance to permanently closed window (recommended to prevent condensation on window)
D
Vertical clearance to ventilated soffi t located above the terminal within a horizontal distance of 2 feet (60
cm) from the center-line of the terminal
E
Clearance to unventilated soffi t
F
Clearance to outside corner
G
Clearance to inside corner
H
Horizontal clearance to center-line of meter/regulator assembly located within 15 feet (4,6 m) below the
terminal
I
Clearance to service regulator vent outlet
J
Clearance to non-mechanical air supply inlet to the building or the combustion air inlet to any other
appliance
K
Clearance to a mechanical air supply inlet
L
Clearance above paved sidewalk or a paved driveway located on public property
Note: A vent must not terminate directly above a sidewalk or paved driveway, which is located between
two single-family dwellings and serves both dwellings
M
Clearance under a verandah, porch, deck or balcony. Only permitted if veranda, porch, deck or balcony is
fully open on a minimum of 2 sides beneath the fl oor
Note:
Local codes and regulations may require different clearances.
30
Co-axial Venting
VENT TERMINAL LOCATIONS - MINIMUM DISTANCES
• This direct vent appliance is designed to operate when
an undisturbed airfl ow hits the outside vent terminal
from any direction.
• The minimum clearances from this terminal that must
be maintained are shown in the fi gure next page. Any
reduction in these clearances could result in a disrup-
tion of the airfl ow or a safety hazard. Local codes or
regulations may require greater clearances.
• The vent terminal must not be recessed into a wall
or siding.
• The vent terminal should be positioned where it will
not be covered by snowdrifts.
• Sidewall vent terminations within 7' of grade or where
easily accessible require a terminal guard such as the
Valor 845TG.
Min. 72"
Max. 72"
G
V
A
Alcove detail
(open on one side)
Normal ceiling/
soffi t clearances
apply.
MINIMUM
CLEARANCE
Inches
Cm
12
30
12
30
12
30
18
46
12
30
12
30
12
30
36
90
36
90
12
30
72
180
84
210
12
30
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