Installation Instructions

18
Vent termination clearances
*For clearances not specied in ANSI Z223.1/NFPZ 54 (US) or B149.1 (Canada), please use clear-
ances in accordance with local installation codes and the requirements of the gas supplier.
Canada U.S.A
Direct-
vent
Other than Direct-vent and other
than Direct-vent Direct-vent
balcony
1 foot 1 foot 1 footA
Clearance above grade, veranda, porch, deck, or
3 feet 1 foot B Clearance to window or door that may be opened
* * *
D
4 feet from below or
side opening. 1 foot
from above opening
C Clearance to permanently closed window
* * *
* * *E Clearance to unven
ated soffit
* * *F Clearance to outside corner
* * *G Clearance to inside corner
V
cal clearance to ven ated soffit located above
the vent terminator within a horizontal distance
of 2 feet (61cm) from the center line of the
terminator
* *3 feetH
Clearance to each side of center line extended
above meter/regulator assembly
* *
J
3 feetI Clearance to service regulator vent outlet
3 feet 1 foot
Clearance to non-mechanical air supply inlet to
building or the combus
air inlet to any other
applica
6 feet
4 feet from below or
side opening. 1 foot
from above opening
3 feetK Clearance to mechanical air supply inlet 3 feet
*7 feetL
Clearance above paved sidewalk or paved driveway
located on public property
7 feet
*1 foot *M Clearance under veranda, porch deck, or balcony
V
INSIDE CORNER DETAIL
V
V
V
V
V
V
V
V
V
Gas meter / regulator
X
X
X
G
A
E
D
B
L
C
F
B
Vent terminal
Air supply inlet
Area where is not permi
ed
B
B
B
A
J
OPERABLE
CL
B
FIXED
OSED
H
M
K
OPERAB E
CL D
L
I
FIXED
OSE