Vermont Castings DVRT41 Homeowner's Installation And Operating Manual page 17

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 com-
bustible 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" (13mm) rise in 12"
(305mm) vent run.
Combustible Walls: Cut a 9 "H x 9 "W (240mm x
240mm) hole through the exterior wall and frame as
shown. (Fig. 31)
Noncombustible Walls: Hole opening must be 7 "
(191mm) in diameter.
Vent Opening for Combustible Wall
9 "
(240mm)
9 "
(240mm)
Fireplace Hearth
Vent Opening Noncombustible Wall
7 " Dia.
(190mm)
Fig. 31 Locate vent opening on wall.
Step 2
Measure wall thickness and cut zero clearance sleeve
parts to proper length (MAXIMUM 12" / 305mm).
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 center of the wall opening. (Fig. 33)
10006740
Framing Detail
Fireplace Hearth
VO584-100
DVRT41Direct Vent Gas Fireplace
Adjustable Zero
Clearance Sleeve
#8 Screws (2)
Adjustable Zero Clearance Sleeve
Fig. 32 Adjustable zero clearance sleeve.
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.
X
Fig. 33 Vertical height requirements.
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.
Max. Length 12"
(305mm)
#8 Screws (2)
#8 Screws
(2)
Firestop
ZCS101
X
FP1181
17