14
Vermont Castings, Majestic Products Chateau™
20006081
Vent Opening for Combustible Wall
16
¹⁄₄
”
(413mm)
Fireplace Hearth
Framing
Detail
Vent Opening for Noncombustible Wall
11
¹⁄₄
”
(286mm)
VO584-100
Fig. 21 Locate vent opening on wall.
16
¹⁄₄
”
(413mm)
Adjustable Zero
Clearance Sleeve
Max. Length
12” (305mm)
#8 Screws (2)
#8 Screws (2)
ZCS101a
Fig. 22 Adjustable zero clearance sleeve.
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. 21)
For combustible walls first frame in opening.
Combustible Walls: Cut a 16
¹⁄₄
”H x 16
¹⁄₄
” W (413mm x
413mm) hole through the exterior wall and frame as
shown.
Noncombustible Walls: Hole opening must be 11
¹⁄₄
”
(286mm) in diameter.
STEP 2
Measure wall thickness and cut zero clearance sleeve
parts to proper length (MAXIMUM 12”/305 mm).
Assemble sleeve using #8 sheet metal screws (sup-
plied). (Fig. 22) Install firestop assembly. (Fig. 31)
Zero clearance sleeve is only required for
combustible walls.
STEP 3
Slide the zero clearance sleeve through the wall and
install the firestop on the inside surface of the wall.
Secure with four (4) #8 sheet metal screws.
Sidewall Installation
X
FP1240a
Fig. 23 Vertical height requirement.
Firestop
Zero
Clearance
Sleeve
1
2
3
4
Example: In Figure 23
Elbow 1
=
90
°
Elbow 2
=
45
°
Elbow 3
=
45
°
Elbow 4
=
90
°
Total angular variation =
270
°
FP1239a
Fig. 20 Maximum number of elbow degrees.
•
For each 45
°
elbow installed in the horizontal run,
the length of the horizontal run MUST be reduced by
18” (45cm). This does not apply if the 45
°
elbows
are installed on the vertical part of the vent system.
For each 90
°
elbow installed in the horizontal run,
the length of the horizontal run MUST be reduced by
36” (91cm).
•
The maximum number of elbow degrees in a system
is 270
°
. (Fig. 20)
STEP 4
Place fireplace into position. (Fig. 23) Measure the
vertical height (X) required from the base of the flue
collars to the center of the wall opening. NOTE: If using
the SK8DVSK Kit, the vertical section of pipe is tel-
escopic and could provide adjustment from 24” up to
40” (610mm to 1016mm).
