30
V
G
A
Min. 72”
Max. 72”
Alcove detail
(open on one side)
Normal ceiling/
soffi t clearances
apply.
KEY
VENT TERMINAL LOCATIONS - MINIMUM DISTANCES
MINIMUM
CLEARANCE
Inches
Cm
A
Clearance above grade, verandah, porch, deck or balcony
12
30
B
Clearance to window or door leading to inside space that may be opened
12
30
C
Clearance to permanently closed window (recommended to prevent condensation on window)
12
30
D
Vertical clearance to ventilated sof
fi
t located above the terminal within a horizontal distance of 2 feet (60
cm) from the center-line of the terminal
18
46
E
Clearance to unventilated sof
fi
t
12
30
F
Clearance to outside corner
12
30
G
Clearance to inside corner
12
30
H
Horizontal clearance to center-line of meter/regulator assembly located within 15 feet (4,6 m) below the
terminal
36
90
I
Clearance to service regulator vent outlet
36
90
J
Clearance to non-mechanical air supply inlet to the building or the combustion air inlet to any other
appliance
12
30
K
Clearance to a mechanical air supply inlet
72
180
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
84
210
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
12
30
Note:
Local codes and regulations may require different clearances.
Co-axial Venting
• This direct vent appliance is designed to operate when
an undisturbed air
fl
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 air
fl
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.
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.
QUALIFIED
INSTALLER
Summary of Contents for 1500INO (NG)
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