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DVB4136 Direct Vent Gas Fireplace
20012322
Vertical Sidewall Installation
Twist Lock Pipe
Step 1
Locate vent opening on the wall. It may be necessary
to first position the fireplace and measure to obtain hole
location. Depending on whether the wall is combustible
or noncombustible, cut opening to size. (Fig. 31) (For
combustible walls first frame in opening.)
NOTE: When using flex vent, the opening will have to
be measured according to the 1/2” (13 mm) rise in 12”
(305 mm) vent run.
Combustible Walls: Cut a 9³⁄₈”H x 9³⁄₈”W (240 mm x
240 mm) hole through the exterior wall and frame as
shown. (Fig. 31)
Noncombustible Walls: Hole opening must be 7¹⁄₂”
(191 mm) in diameter.
VO584-100
Vent Opening
2/99 djt
Vent Opening for Combustible Walls
9³⁄₈”
(240 mm)
9³⁄₈”
(240 mm)
Fireplace Hearth
Framing Detail
Opening for Noncombustible Wall
7¹⁄₂”
(190 mm)
Fireplace Hearth
VO584-100
Fig. 31 Locate vent opening on wall.
ZCS101
Zero Clearance Sleeve
3/11/99 djt
Adjustable Zero
Clearance Sleeve
Max. Length
12” (305 mm)
#8 Screws (2)
Firestop
#8 Screws
(2)
Adjustable Zero
Clearance Sleeve
#8 Screws
(2)
ZCS101
Fig. 32 Adjustable zero clearance sleeve.
Step 2
Measure wall thickness and cut zero clearance sleeve
parts to proper length (MAXIMUM 12” / 305 mm).
Assemble sleeve and attach to firestop with #8 sheet
metal screws (supplied). Install firestop assembly. (Fig.
32)
Zero clearance sleeve is only required for
combustible walls.
Step 3
Place fireplace into position. Measure the vertical height
(X) required from the base of the flue collars to the cen-
ter of the wall opening. (Fig. 33)
Step 4
Apply a band of silicone to the inner and outer flue
collars of the fireplace and using appropriate length of
pipe section(s) attach to fireplace with three (3) screws.
Follow with the installation of the inner and outer elbow,
again secure joints with three (3) sheet metal screws.
Wipe off any excess high temperature sealant.
Step 5
Measure the horizontal length requirement including a
2” (51mm) overlap, i.e. from the elbow to the outside
wall face plus 2” (51mm) (or the distance required if
installing a second 90° elbow). (Fig. 34)
Always install horizontal venting on a level
plane.
Step 6
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.
Sealing vent pipe and firestop gaps with high tem-
perature sealant will restrict cold air being drawn in
around fireplace.
X
X
FP1181
Fig. 33 Vertical height requirements.