23
Rinnai CVent
Exhaust Vent Termination Clearances
INSIDE
CORNER DETAIL
FIXED
CLOSED
OPERABLE
FIXED
CLOSED
OPERABLE
B
B
B
A
J
B
M
C
F
B
B
E
D
L
G
A
H
K
I
X
V
AIR SUPPLY INLET
VENT TERMINAL
AREA WHERE
TERMINAL IS NOT
PERMITTTED
Direct Vent for indoor models, you must install terminations to bring in combustion air and expel exhaust.
SNOW
TERMINATION
Clearance in
Ref. A also
applies to
anticipated
snow line
[1] A vent shall not terminate directly above a sidewalk or paved
driveway that is located between two single family dwellings and
serves both dwellings.
[2] Permitted only if veranda, porch, deck, or balcony is fully open on
a minimum of two sides beneath the floor.
For clearances not specified in
ANSI Z223.1/NFPA 54
, clearances
are in accordance with local installation codes and the requirements
of the gas supplier.
Clearance to opposite wall is 24 inches (60 cm).
Ref
Description
Canadian Installations
US Installations
A
Clearance above grade, veranda, porch, deck, or balcony
12 inches (30 cm)
12 inches (30 cm)
B
Clearance to window or door that may be opened
36 inches (91 cm)
12 inches (30 cm)
C
Clearance to permanently closed window
*
*
D
Vertical clearance to ventilated soffit, located above the terminal
within a horizontal distance of 2 feet (61 cm) from the center line
of the terminal
*
*
E
Clearance to unventilated soffit
*
*
F
Clearance to outside corner
*
*
G
Clearance to inside corner
*
*
H
Clearance to each side of center line extended above meter/
regulator assembly
3 feet (91 cm) within a height
15 feet (4.5 m) above the
meter/regulator assembly
*
I
Clearance to service regulator vent outlet
36 inches (91 cm)
*
J
Clearance to nonmechanical air supply inlet to building or the
combustion air inlet to any other appliance
36 inches (91 cm)
12 inches (30 cm)
K
Clearance to a mechanical air supply inlet
6 feet (1.83 m)
3 feet (91 cm) above if within
10 feet (3 m) horizontally
L
Clearance above paved sidewalk or paved driveway located on
public property
7 feet (2.13 m)
*
M
Clearance under veranda, porch, deck, or balcony
12 inches (30 cm)
*
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