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4
Vent Information
A. Venting Termination Minimum Requirements
O
Figure 13.1
All minimum clearances are listed with an Outside Air Kit (OAK) installed, unless otherwise noted in table below.
Above Finish Grade (the grade surface must
A
12 in.
be a non-combustible material
12 in.
B
Open door or window: below or to the side
48 in. no OAK
B
12 in.
Open door or window: above
Permanently closed window: above, below or
C
6 in.
to the side
Vertical clearance to a ventilated soffit located
18 in.
D
above the terminal within a horizontal distance
36 in. no OAK
of 2 ft from the center-line of the terminal
E
12 in.
Clearance to unventilated soffit
F
12 in.
Clearance to outside corner
G
12 in.
Clearance to inside corner
Above gas meter/regulator measured from
H
36 in.
horizontal center-line of regulator
36 in. USA
I
Clearance to service regulator vent outlet
72 in. Canada
Clearance to non-mechanical air supply inlet to
12 in.
J
the building or the combustions air inlet to any
48 in. no OAK
other appliance
10 ft horizontal
K
Clearance to mechanical air supply
3 ft vertical
Above paved sidewalk, paved driveway located
L
7 ft.
on public property
Under an open veranda, porch, deck or
M
12 in.
balcony
Electric service: above, below or to the side
See Note
N
(location must not obstruct or interfere with
below*
access)
Adjacent building, fences and protruding parts
O
24 in.
of the structure
Clearance above roof line for vertical
P
12 in.
terminations
*NOTE: Consult local building, fire officials or authorities
having jurisdiction. Local codes or regulations
may require different clearances.
September 24, 2018
D
E
L
C
B
V
FIXED
CLOSED
OPEN
F
V
B
Termination Cap
V
Inside Corner
G
V
A
FIXED
OPEN
V
CLOSED
B
V
A
B
G
Air Supply Inlet
Gas Meter
X
Above grass, top of plants, wood or any other
24 in.
combustible
12 in.
Clearance from any forced air intake of other appliance
36 in. no OAK
12 in.
Clearance horizontally from combustible wall
Vented directly through a wall, minimum length of
15 in.
horizontal pipe
6 in. horizontal
Minimum horizontal or vertical terminations must
12 in. vertical
protrude from wall
DO NOT TERMINATE VENT:
•
In any location that will allow flue gases or soot from
entering or staining the building
•
In any location which could create a nuisance or
hazard
•
In any enclosed or semi-enclosed area such as a
carport, garage, attic, crawl space, under a sun deck
or porch, narrow walkway
•
Closely fenced area, or any location that can build up
a concentration of fumes such as a stairwell, covered
breezeway, etc.
TERMINATION MUST EXHAUST ABOVE AIR INLET
ELEVATION:
•
It is recommended that at least 60 inches (1.52m) of
vertical pipe be installed when appliance is vented
directly through a wall. This will create a natural draft,
which will help prevent the possibility of smoke or
odor venting into the home during a power outage.
•
It will also keep exhaust from causing a nuisance
or hazard by exposing people or shrubs to high
temperatures.
•
The safest and preferred venting method is to extend
the vent vertically through the roof or above the roof.
7080-165D
V
N
N
N
Electrical
V
V
Service
N
V
H
P
G
M
I
X
V
J or K
Restricted Area
NOTICE
NOTICE
TREKKER FS
13
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