Installation Sheet

8 Rinnai Corporation EX17CT, EX22CT Manual
Flue Terminal 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
[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).
X
V
AIR SUPPLY INLET
VENT TERMINAL
AREA WHERE
TERMINAL IS NOT
PERMITTTED
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 12 inches (30 cm) 9 inches (23 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
12 inches (30 cm) 9 inches (23 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)  *
SNOW
TERMINATION
Clearance in
Ref. A also
applies to
anticipated
snow line
Clearance in
Ref. A also
applies to
anticipated
snow line