1018028-BPage 5
CLEARANCES
E
D
B
FIXED
CLOSED
FIXED
CLOSED
OPERABLE
C
H
B
B
B
B
F
B
A
I
M
K
Clearance in
installation codes &
requirements of the
gas supplier
A Clearance above grade, veranda, porch, deck, or balcony
E
C
G Clearance to inside corner
I Clearance to service regulator vent outlet
B
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
from the center line of the terminal
L
located on public property
12 Inches (30 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)
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.
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)
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)
10 Feet (3 m) horizontally
Clearance in accordance
requirements of the gas supplier
REFERENCE LETTER TO DRAWING
CANADIAN
INSTALLATIONS*
U.S. INSTALLATIONS**
DVCF40 DVCF55
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
not permitted
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