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SECTION 5: USING THE HEATER
11
FIGURE 6: Vent Terminal Clearances
V
V
V
V
V
V
V
V
V
V
X
X
J
B
B
B
M
I
B
E
D
L
A
X
J
F
B
G
H
B
C
FIXED
CLOSED
INSIDE
CORNER DETAIL
OPERABLE
Vent Terminal Air Supply Inlet Area Where Terminal Is Not Permitted
Canadian Installations
1
US Installations
2
A
Clearance above
grade, veranda,
porch, deck, or
balcony
12" (30 cm) 12" (30 cm)
B
Clearance to
window or door that
may be open
12" 9"
C
Clearance to
permanently closed
window
12" 12"
D
Vertical clearance to
ventilated soffit
located above the
terminal within a
horizontal distance
of 2' (61 cm) from
the center line of the
terminal.
12" 12"
E
Clearance to
Unventilated soffit
12" 12"
F
Clearance to
Outside Corner
**
G
Clearance to inside
corner
18" 18"