TERMINATION CLEARANCES OTHER THAN SIDEWALL DIRECT VENT
Fixed
Closed
Operable
Fixed
closed
Operable
B
V
V
V
V
V
V
V
V
C
B
B
X
A
M
K
Regulator vent outlet
In the event no
regulator is present,
H and I can be
disregarded
.
V
Legend:
= Vent terminal
X
= Air supply inlet
= Area where terminal is not permitted
B
B
J
F
X
B
L
E
D
Inside
corner detail
V
A
G
H
15 ft
I
Figure 25. Other than Direct Vent Using Outside Air
Termination Clearances for Sidewall Direct Vent
Type of Clearance
Canadian Installations
1
US Installations
2
A
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Termination Clearances for Sidewall Direct Vent
Type of Clearance
Canadian Installations
1
US Installations
2
H
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CSA B149.1, Natural Gas and Propane Installation Code
.
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ANSI Z223.1/NFPA 54, National Fuel Gas Code
.
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