Installation / Operation Instruction Manual

9
Venting continued-
Canadian Installations
1
US Installations
2
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
6 in. (15 cm) for appliances
≤ 10,000 Btuh (3 kW), 12 in.
(30
cm) for appliances > 10,000
Btuh (3 kW) and
≤100,000 Btuh
(30 kW), 36 in. (91 cm) for
appliances >100,000 Btuh
(30 kW))
4 ft (1.2 m) below or to
side of opening; 1 ft (300
mm) above opening
C= Clearance to
permanently closed
window
*b *b
D= Vertical clearance to
ventilated soffit located
above the terminal
within a horizontal
distance of 2 feet (.6 m)
from the center line of
the terminal
*b *b
E= Clearance to
unventilated soffit
*b *b
F= Clearance to outside
corner
*b *b
G= Clearance to inside
corner
*b *b
H= Clearance to each side
of center line extended
above meter/regulator
assembly
3 feet (.9 m) within a height
15 feet (4.6 m) above the
meter/regulator assembly
*b
I= Clearance to service
regulator vent outlet or
oil tank vent
3 feet (.9 m) *b
J= Clearance to non-
mechanical air supply
inlet to building or the
combustion air inlet to
any other appliance
12 inches
(30 cm)
4 feet (1.2m) below or to
side of opening;
12 inches (30 cm) above
opening.
K= Clearance to a
mechanical air supply
inlet
6 feet
(1.83 m)
3 feet (91 cm) above if
within 10 feet horizontally
L= Clearance above paved
sidewalk or paved
driveway located on
public property
7 feet
(2.13 m)†
7 feet
(2.13 m)†
M= Clearance under a
veranda, porch, deck, or
balcony
12 inches
(30 cm) ‡
*b
1
In accordance with the current CAN/CGA-B149 Installation Codes.
2
In accordance with the current ANSI Z223.1-(Latest edition)/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 a veranda, porch, deck or balcony is fully open on a minimum of two sides beneath the floor.
*a) A minimum clearance value determined by testing in accordance with section 2.20.
*b) “Clearance in accordance with local installation codes and the requirements of the gas supplier”.
This water heater has a certified category III, per latest ANSI Z 21.10.3-
2015.CSA 4.3-2015 revision. Refer to the latest edition of the National Fuel
Gas Code (ANSI Z223.1-latest edition), or in Canada, the Natural Gas and
Propane installation Code (B149.1-00 latest edition).