Vermont Castings Intrepid INDVRBDSB Installation & Operating Manual page 12

Direct vent gas heater
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Termination Clearances
Termination clearances for buildings with combustible and noncombustible exteriors.
Inside Corner
G
V
Balcony -
with no side wall
M =
Combustible &
Noncombustible
12" (305 mm)
*NOTE: Termination in an alcove space (spaces open only on one side and with an overhang) is permitted with the dimensions specified for vinyl or
non-vinyl siding and soffits.
1. There must be a 3' (914 mm) minimum between termination caps.
2. All mechanical air intakes within 10' (1 m) of a termination cap must be a minimum of 3' (914 mm) below the termination cap.
3. All gravity air intakes within 3' (914 mm) of a termination cap must be a minimum of 1' (305 mm) below the termination cap.
Figure 2.11 - Termination clearances.
1212
Outside Corner
G =
Combustible
6" (152 mm)
V
Noncombustible
2" (51 mm)
Balcony -
with perpendicular side wall
M
M
V
Combustible &
Noncombustible
M = 12" (305 mm)
P = 6" (152 mm)
Vermont Castings • Intrepid DV-IFT Owner's Manual_R20 • 11/21
F =
Combustible
6" (152 mm)
Noncombustible
2" (51 mm)
F
V
P
D
C
Alcove Applications*
D
C
C
V
E
O
E
= Min. 2" (51 mm) for
non-vinyl sidewalls
Min. 12" (305 mm) for
vinyl sidewalls
O
= 8' (2.4 m) Min.
# of
D
C
Min.
Max.
Caps
1
3' (914 mm)
2 X D
2
6' (1.8 m)
1 X D
3
9' (2.7 m)
2/3 X D
4
12' (3.7 m)
1/2 X D
= # of Termination caps x 3
Min.
= (2 / # termination caps) x D
Max.
Actual
Actual
Actual
Actual
Actual
3-90-30007474

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