6
W415-0341 / F / 11.21.05
SEE HORIZONTAL TERMINATION
FIGURE 3a - b
VENT INSTALLATIONS
*
A clearance to combustibles of 2" at the vent pipe top
must be maintained for the first 12" of venting. The firestop
spacer
W010-0612
supplied with the unit must be used to
maintain this clearance. Thereafter a 1" clearance to
combustibles may be maintained using the firestop spacer
W500-0096
for use with flexible venting or firestop spacer
W500-0136
for use with rigid venting.
For safe and proper operation of the fireplace follow
the venting instruction exactly.
Deviation from the minimum or the maximum vertical
vent length can create difficulty in burner start-up and/
or carboning.
A terminal shall not terminate directly above a sidewalk
or paved driveway which is located betweeen two sin-
gle family dwellings and serves both dwellings. Local
codes or regulations may require different clearances.
In order to avoid the possibility of exposed insulation
or vapour barrier coming in contact with the fireplace
body, it is recommended that the walls of the fireplace
enclosure be “finished” (ie: drywall/sheetrock), as you
would finish any other outside wall of a home. This will
ensure that clearance to combustibles is maintained
within the cavity.
Wolf Steel, Simpson Dura-Vent,
Selkirk Direct Temp and
American Metal Amerivent
venting systems must not
be combined.
Purge all gas lines with the glass door of the fireplace
open. Assure that a continuous gas flow is at the burner
before closing the door.
Under extreme vent configurations, allow several min-
utes (5-15) for the flame to stabilize after ignition.
Six (6") inches is the minimum bend radius allowed for
the 7" diameter flexible liner.
For optimum performance, it is recommended that
horizontal runs have a minimum ¼ inch rise per foot
when using
Simpson Dura-Vent or
Wolf Steel rigid
vent components and a minimum 1 inch rise per foot
when using Wolf Steel flexible vent components
FOR SPECIFIC VENTING PARAMETERS, REFER TO
PAGES 9-14.
GD33 & BGD33: When venting either a GD33 or a
BGD33, the horizontal run must be kept to a maximum
of 24 inches. A GD33 must be kept to a minimum of 12
inches and a BGD33 must be kept to a minimum of 8
inches. When terminating vertically, the vertical rise is
a minimum 36 inches to a maximum 40 feet from the
centre of the fireplace flue outlet. The maximum hori-
zontal run, when terminating vertically, is 7 feet.
FIGURES 2a - d
FIGURE 4a-b
Minimum clearance to combustible construction
from fireplace and vent surfaces:
BGD33
GD33
BGD34
GD34
SIDE OF THE UNIT
0"
0"
0"
0"
BACK OF THE UNIT
0"
0"
0"
0"
BOTTOM OF THE UNIT
0"
0"
0"
0"
TOP OF THE UNIT
0"
0"
0"
0"
TOP OF THE VENT PIPE
2"*
1"
1"
1"
SIDES OF THE VENT PIPE
1"*
1"
1"
1"
BOTTOM OF THE VENT PIPE
1"*
1"
1"
1"
RECESSED DEPTH
12"
12"
12"
12"
TABLE 2
ALL MODELS:
Vent lengths that pass through unheated
spaces (attics, garages, crawl spaces) should be insu-
lated with the insulation wrapped in a protective sleeve
to minimize condensation.
Provide a means for visually checking the vent connec-
tion to the fireplace after the fireplace is installed.
Do not allow the inside liner to bunch up on horizontal or
vertical runs and elbows. Keep it pulled tight. A 1¼" air
gap between the inner and outer liner all around is re-
quired for safe operation.
Use a firestop, vent pipe shield or attic insulation shield
when penetrating interior walls, floor or ceiling.
TYPICAL VENT INSTALLATIONS