Installation manual

Rinnai Corporation ES17 / ES22 Manual 17
Flue Terminal Clearances
Ref
Description
Canadian Installations US Installations
A
Clearance above grade, veranda, porch, deck, or balcony. (Take into account the anticipated snow line)
6 inches (15 cm) for
appliances <
10,000 BTUh;
9 inches (23 cm) for
appliances > 10,000 BTUh
and <
50,000 BTUh,
12 inches (30 cm) for
appliances > 50,000 BTUh
6 inches (15 cm) for
appliances <
10,000 BTUh;
9 inches (23 cm) for
appliances > 10,000 BTUh
and <
50,000 BTUh,
12 inches (30 cm) for
appliances > 50,000 BTUh
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 20 inches (50 cm) 20 inches (50 cm)
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 3 feet (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) 1 *
M
Clearance under veranda, porch, deck, or balcony
12 inches (30 cm) to non-
flammables 2
24 inches (60 cm) to
flammables 2
12 inches (30 cm) to non-
flammables 2
24 inches (60 cm) to
flammables 2
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 or CSA B149.1, clearances are in accordance with local installation codes and the requirements of the gas supplier.