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74D3000
17
BLDV7 Series Gas Fireplace
VO584-100
Vent Opening
2/99 djt
9B\,”
(44 mm)
Min.
Fireplace Hearth
Framing Detail
7Z\x”
(190 mm)
Fireplace Hearth
FP93
Figure 16 -
Locate vent opening on wall
9B\,”
(44 mm) Min.
Locate vent opening on the wall. It may be necessary to
first position the fireplace and measure to obtain hole lo-
cation. Depending on whether the wall is combustible or
noncombustible, cut opening to size. Figure 16 (For com-
bustible walls first frame in opening.)
When using flex vent, the opening will have to be
measured according to the 1/” (13 mm) rise in 1” (305
mm) vent run.
Cut a 9B\,”H x 9B\,”W (44 x 44 mm)
hole through the exterior wall and frame as shown. Figure
16
Hole opening must be 7Z\x” (191
mm) in diameter.
Secure firestop to the inside frame, center in the 9B\," x
9B\," vent opening.
Place fireplace into position. Measure the vertical height
(X) required from the base of the flue collars to the center
of the wall opening. Figure 17
X
X
Figure 17 -
Vertical Height
Requirement
FP1181
Using appropriate length of pipe section(s) attach to fire-
place with three (3) screws. Follow with the installation of
the inner and outer elbow, again secure joints with three
(3) sheet metal screws.
Measure the horizontal length requirement including a ”
(51 mm) overlap, i.e. from the elbow to the outside wall
face plus ” (51 mm) (or the distance required if installing
a second 90° elbow). Figure 18
X
X
Figure 18 -
Horizontal Length
Requirement
FP118
Use appropriate length of pipe sections - telescopic or
fixed - and install. The sections which go through the wall
are packaged with the starter kit, and can be cut to suit if
necessary.