1018028-B
Page 5
CLEARANCES
E
D
B
FIXED
CLOSED
FIXED
CLOSED
OPERABLE
C
H
B
B
B
B
F
B
A
J
I
M
K
OPERABLE
Clearance in
accordance with local
installation codes &
requirements of the
gas supplier
A
Clearance above grade, veranda, porch, deck, or balcony
E
Clearance to unventilated soffit
C
Clearance to permanently closed window
G
Clearance to inside corner
I
Clearance to service regulator vent outlet
B
Clearance to window or door that may be opened
F
Clearance to outside corner
J
Clearance to nonmechanical air supply inlet to building or
the combustion air inlet to any other appliance.
K
Clearance to a mechanical air supply inlet
H
Clearance to each side of center line extended above
meter/regulator assembly
M
Clearance under veranda, porch, deck, or balcony
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
L
Clearance above paved sidewalk or paved driveway
located on public property
12 Inches (30 cm)
24 Inches (61 cm)
12 Inches (30 cm)
12 Inches (30 cm)
3 Feet (91 cm)
12 Inches (30 cm)
12 Inches (30 cm)
12 Inches (30 cm)
6 Feet (1.83 m)
3 Feet (91 cm)
within a
height 15 Feet (4.5m) above the
meter / regulator assembly
12 Inches (30 cm)
permitted only if veranda, porch,
deck, or balcony is fully open on a
minimum of two sides.
18 Inches (46 cm)
7 Feet (2.13m)
A vent shall not
terminate directly above a sidewalk
or paved driveway that is located
between two single family dwellings
and serves both dwellings.
12 Inches (30 cm)
24 Inches (61 cm)
9” (23 cm)
12 Inches (30 cm)
9” (23 cm)
12” (30 cm)
12” (30 cm)
12 Inches (30 cm)
9” (23 cm)
12” (30 cm)
3 Feet (91 cm) above if within
10 Feet (3 m) horizontally
Clearance in accordance
with local installation codes &
requirements of the gas supplier
18 Inches (46 cm)
REFERENCE LETTER TO DRAWING
CANADIAN
INSTALLATIONS*
U.S. INSTALLATIONS**
DVCF40 DVCF55
G
A
Inside
Corner
Detail
*In accordance with the current CSA-B149.1
Natural Gas and Propane Installation Code
**In aaccordance with the current ANSI
Z223.1 / NFPA 54 National Fuel Gas Code
= Air Supply Inlet
= Vent Terminal
= Area where terminal is
not permitted
