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56D3048
15
HDV Series Direct Vent Gas Fireplace
V
V
V
V
V
V
V
V
D
L
E
B
C
F
B
B
B B
B
M
I
A
A
J
H
G
A
Operable
Fixed
Closed
Fixed
Closed
Opera-
ble
K
A
A
A
G
Figure 11 -
Horizontal Vent Termination Location
Vent Terminal Air Supply Inlet Area Where Terminals Not Permitted
Inside Corner Detail
A = Clearance above the grade, a veranda, porch, deck, or balcony [*1" (305 mm) minimum].
B = Clearance to window or door that may be opened [*1" (305 mm) minimum].
C = Clearance to permanently closed window [*minimum 1" (305 mm) recommended to prevent condensation
on window]
D
= Vertical clearance to ventilated soffit located above the terminal within a horizontal distance of two () feet
(610 mm) from the centerline of the terminal [18" (457 mm) minimum].
E
= Clearance to unventilated soffits [1" (305 mm) minimum].
F = Clearance to an outside corner. Page 16, Figure 12
G = Clearance to an inside corner. Page 16, Figure 12
H = *Not to be installed above a gas meter/regulator assembly within three (3) feet (914 mm) horizontally from
the centerline of the regulator.
I = Clearance to service regulator vent outlet [*3' (914 mm) minimum].
J = Clearance to non-mechanical air supply inlet to building or the combustion air inlet to any other appliance
[*1" (305mm) minimum].
K = Clearance to a mechanical air supply inlet [*6' (189 mm) minimum].
L
= Clearance above a paved sidewalk or paved driveway located on public property [
**
7' (133 mm)
minimum].
M
= Clearance under veranda, porch, deck, or balcony. Page 16, Figure 12. [For Canada *1" (305 mm)
minimum
***
].
N = Clearance above a roof shall extend a minimum of 4" (610 mm) above the highest point when it passes
through the roof surface and any other obstruction within a horizontal distance of 18" (457 mm).
* As specified in CSA B149 Installation Codes. Local codes or regulations may require different
clearances.
** A vent must not terminate directly above a sidewalk or paved driveway, which is located between two single-
family dwellings and serves both dwellings.
*** Only permitted if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the
floor.
Always maintain minimum clearances around vent systems. The minimum clearance to
combustibles for horizontal vent pipe are 3” at the top and 1” at the sides and bottom
of the vent system until the pipe penetrates the nearest vertical wall (1” required). A
1” minimum clearance all around the pipe must be maintained at outside wall and on
vertical runs. Do not pack the open air spaces with insulation or other materials. This
could cause high temperatures and may present a fire hazard.
*Unless the vertical run is 7Z\x feet or higher (top vent units only), the clearances for the
horizontal run is 1” at the top.