EXHAUST
SYSTEMS
9
REQUIREMENTS FOR VENT TERMINATION
B
Minimum 4 foot clearance
below or beside
any door or window which opens
C
Minimum 1 foot clearance
below or beside
window that does not open
D
Minimum 1 foot clearance
above
any door or window
E
Minimum 3 foot clearance
from any adjacent building or horizontally from combustible wall
F
Minimum 1 foot clearance
above grade
G
Minimum 2 foot clearance
above any grass, plants or other combustible materials
H
Minimum 7 foot clearance
above any grade
when adjacent to public walkways
A Minimum 3 feet (36”) above the roof
and 2 feet (24”) above
the highest point of the roof within
10
feet
NOTE: VENT MAY NOT TERMINATE IN COVERED WALKWAY OR BREEZEWAY OR ABOVE
A SIDEWALK OR PAVED DRIVEWAY LOCATED BETWEEN TWO SINGLE FAMILY
DWELLINGS AND SERVES BOTH DWELLINGS
I
Minimum 3 foot clearance
from any forced air intake of any other appliance
J
Minimum 4 foot clearance
from a non-mechanical air supply inlet to the building
or the
combustion air inlet to any other appliance
K
Minimum 2 foot clearance
below eaves or overhang
3’
10’
2’
A
O
G
F
K
L
D C
B
B
E
P
N
H
M
F
J
I
L
Minimum 1 foot clearance
to an outside corner
from the center of the pipe
M
Minimum 1 foot clearance
to an inside corner
N
Minimum 3 foot clearance
above a gas meter/regulator assembly
when measured from
the center line of the regulator
O
Minimum 6 foot clearance
to service regulator vent outlet
P
Minimum 3 foot clearance
under a veranda, porch, deck or balcony
(NOTE: Only
permitted if veranda, porch, deck or balcony is fully open on sides beneath the floor)
Q
***
VERY IMPORTANT ***: Minimum 1 foot beyond exterior wall for horizontal vent terminations
(extend further if outside wall has prevailing wind)
Q
