6 720 607 909
Installation instructions
21
Fig. 23
*
For clearances not specified in ANSI Z223.1 / NFPA 54 or CSA -B149.1. “Clearances in accordance with local installation codes and
the requirements of the gas supplier.”
Fixed
Closed
6720608836-18.1JF
Q
Ref.
Description
Direct Vent Terminal
Clearances
Other than Direct Vent
Terminal Clearances
Canadian
Instalations
1)
US
Instalations
2)
Canadian
Instalations
1)
US
Instalations
2)
M
Clearance to permanently closed window
*
*
*
*
Vertical clearance to ventilated soffit located
above the terminal within a horizontal distance
os 2 feet (61 cm) from the center line of the
terminal
N/A
N/A
*
*
N
Clearance to each side of center line extended
above meter/regulator assembly
3 feet (91 cm)
within a height
15 feet above
the meter/regula-
tor assembly
*
3 feet (91 cm)
within a height 15
feet above the
meter/regulator
assembly
*
O
Clearance to a mechanical air supply inlet
6 feet (1.83 m)
3 feet (91 cm)
above if within
10 feet (3 m)
6 feet (1.83 m)
3 feet (91 cm)
above if within
10 feet (3 m)
P
Clearance above paved sidewalk or paved
direway located on public property
7 feet (2.13 m)
3)
*
7 feet (2.13 m)
3)
7 feet (2.13 m)
Q
Clearance under veranda, porch, deck or
balcony
12 inches
(30cm)
4)
*
12 inches
(30cm)
4)
*
Table 10Vent terminal clearances
1)
In accordance with the current CSA B149.1
Natural Gas and Propane Installation Code
.
2)
In accordance with the current ANSI Z223.1 / NFPA 54
National Fuel Gas Code
3)
A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family dwellings and serves
both dwellings.
4)
Permited only if veranda, porch, deck or balcony is fully open a minimum of two sides beneath the floor.
