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TERMINATION CLEARANCES SIDEWALL POWER VENT
D
E
V
B
V
L
Vent terminal clearances for "Power Vent" installations. Power Vent confi gurations use room air for combustion.
Clearance above grade,
A
veranda, porch, deck or
balcony
B Clearance to window or door
that may be opened
C Clearance to permanently
closed window
Vertical clearance to ventilated
soffi t located above the
D
terminal within a horizontal
distance of 2 ft. from the
center line of the terminal
Clearance to unventilated
E
soffi t
F Clearance to outside corner
G Clearance to inside corner
In accordance with the current ANSI Z223.1/NFPA 54, National Fuel Gas Code.
† A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family
dwellings and serves both dwellings.
‡ Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the fl oor.
* Clearance in accordance with local installation codes and the requirements of the gas supplier and the
manufacturer's installation instructions.
R
R N E
E C O
I N S I D
I L
D E T A
G
V
A
C
D
F I X E
V
S E D
C L O
V
F
B
12 in.
4 ft. below or to side
of opening; 1 ft.
above opening
12 in.*
12 in.*
12 in.*
2 ft.*
18 in.*
www.statewaterheaters.com
V
Vent terminal
X
Air supply inlet
Area where is not permitted
B
B
V
D
F I X E
S E D
C L O
L E
R A B
O P E
V
X
B
V
J
B
A
Figure 28.
Clearance to each side of
H
center line extended above
meter/regulator assembly
Clearance to service regulator
I
vent outlet
Clearance to a non
mechanical air supply inlet into
J
building or combustion air inlet
to any other appliance
Clearance to a mechanical air
K
supply inlet
Clearance above paved
L
sidewalk or paved driveway
located on public property
M Clearance under veranda,
porch, deck, or balcony
I
M
X
V
K
Gas meter / regulator
N/A
3 ft.*
4 ft. below or to side
of opening; 1 foot
above opening.
3 ft. above if within
10 ft. horizontally
7 ft.†
12 in.‡
27
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