Vermont Casting DVRTSB - Manual (Page 16)

16
Vermont Castings, Majestic Products DVRTSB
10003848
Vertical Sidewall Installations
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.
23) For combustible walls first frame in opening. (Fig.
23)
Combustible Walls: Cut a 9
³⁄₈
”H x 9
³⁄₈
”W (240 x
240mm) hole through the exterior wall and frame as
shown in Figure 23.
Noncombustible Walls (Fig. 23): Hole opening must
be 7
¹⁄₂ ” (190 mm) in diameter.
Vent Opening for Combustible Wall
9 ³⁄₈ ”
(240mm)
9 ³⁄₈ ”
(240mm)
Framing Detail
Opening for Noncombustible Wall
7 ¹⁄₂ ”
(190mm)
VO584-100
Fig. 23 Locate vent opening on wall.
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.
24)
Zero clearance sleeve is only required
for combustible walls.
STEP 3
Place fireplace into position. (Fig. 25) Measure the
vertical height (X) required from the base of the flue
collars to the center of the wall opening.
Max. Length 12”
(305mm)
#8 Screws (2)
#8 Screws
(2)
Adjustable Zero Clearance Sleeve ZCS101
#8 Screws (2)
Firestop
Adjustable Zero
Clearance Sleeve
Fig. 24 Adjustable zero clearance sleeve.
X X
FP1384
Fig. 25 Vertical height requirements.
STEP 4
Apply a bead 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 as described in “Connecting
Vent Pipes”.
STEP 5
Measure the horizontal length requirement including a
2” (50mm) overlap, i.e. from the elbow to the outside
wall face plus 2” (50mm) (or the distance required if
installing a second 90
°
elbow. (Fig. 26)
Always install horizontal venting on a
level plane.
STEP 6
Use appropriate length of pipe sections - telescopic or
fixed and install. The section which goes through the
wall is packaged with the starter kit, and can be cut to
suit if necessary.
Sealing vent pipe and firestop gaps with high
temperature sealant will restrict cold air being
drawn in around fireplace.