Desa SDVBND Owner's Operation And Installation Manual page 11

GENERAL VENTING
D
E
V
B
L
V
A = clearance above grade, veranda, porch, deck, or balcony
[*12 inches (30.5mc) minimum]
B = clearance to window or door that may be opened
[12 inches (30.5cm) minimum]
C = clearance to permanently closed window [minimum 12 inches
(30.5cm) recommended to prevent condensation on window]
D = vertical clearance to ventilated soffit located above the terminal
within a horizontal distance of 24 inches (61cm) from the
center-line of the terminal [18 inches (45.7cm) minimum]
E = clearance to unventilated soffit [12 inches (30.5cm) minimum]
F = clearance to outside corner (see below)
G = clearance to inside corner (see below)
H = *not to be installed above a meter/regulator assembly within
36 inches (91.4cm) horizontally from the center-line of the regulator
vent shall not terminate directly above a side-walk or paved driveway which is located between two
single family dwellings and serves both dwellings*
only permitted if veranda, porch, deck or balconey is fully open on a minimum of 2 sides beneath the floor*
* as specified in CAN/CSA B149 (.1 or .2) Installation Codes (1991) for Canada and U.S.A.
Note : Local codes or regulations may require different clearances
Termination Clearances for Buildings with Combustible and Noncombustible Exteriors
Inside Corner
A
A = 6" (15.2cm)
V
Balcony with No Side Wall
G
V
G = 12" (30.5cm) minimum clearance
Figure 20 - Minimum Clearances for Vent Terminations
For more information, visit www.desatech.com
For more information, visit www.desatech.com
112126-01B
Continued
C
Fixed
V
Openable Fixed
Closed
Openable
F V
B
B
TERMINATION CAP
AIR SUPPLY INLET
X
Outside Corner
V
Balcony with Perpendicular Side Wall
H
Combustible &
Noncombustible
H = 24" (61cm)
J = 20" (50.8cm)
H
B
V
Closed
B
G
J
V X
A
G GAS METER
I = clearance to service regulator vent outlet [*72 inches (182.9cm)
minimum]
J = clearance to non-mechanical air supply inlet to building or the
combustion air inlet to any other fireplace [*12 inches (30.5cm)
minimum]
K = clearance to a mechanical air supply inlet [*72 inches (182.9cm)
minimum]
L = clearance above paved side-walk or a paved driveway located on
public property [*84 inches (213.3cm) minimum]
M = clearance under veranda, porch, deck [*12 inches (30.5cm) minimum ]
N = clearance above a roof shall extend a minimum of 24 inches (61cm)
above the highest point when it passes through the roof surface and
any other obstruction within a horizontal distance of 18 inches (45.7cm)
Recessed Location
B = 6" (15.2cm)
B
C = Maximum depth of 48" (121.9cm) for
D = Minimum width for back wall of
V
J
E = Clearance from corner in
GENERAL VENTING
N
N
I
M
V
K X
RESTRICTED AREA
(TERMINATION PROHIBITED)
D
C C
E
V
recessed location
recessed location -
Combustible - 38" (965mm)
Noncombustible - 24" (61cm)
recessed location-
Combustible - 6" (15.2cm)
Noncombustible - 2" (5.1cm)
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11
G
V
G
V
A