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P/N 900355-07, REV. A, 11/2017
MONTEBELLO™ ST
Fr
aming D
imensions
Fir
eplac
e D
imensions
Framing Should be constructions of 2 x 4 or larger lumber.
27-1/2”
(699mm)
26-1/4”
(667mm)
3-1/2”
(89mm)
19-5/8”
(499mm)
46-5/8”
(1184mm)
7”
(178mm)
50-1/2”
(1283mm)
29-5/8”
(753mm)
12-3/8”
(314mm)
5-1/8”
(130mm)
41-1/2”
(1054mm)
33-3/4”
(857mm)
13-1/8”
(333mm)
25-3/8”
(645mm)
34-3/4”
(883mm)
7-3/8”
(187mm)
5-1/2”
(140mm)
Front View
(opposite of valve access side)
Left Side View
Top View
Unit Dimensions
(Shown with Outdoor Kit Installed)
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
W
all F
inishing
SEE-THROUGH
DIRECT-VENT FIREPLACE
INTERIOR
EXTERIOR
8" / 11"
Vent / Intake
Gas Inlet
J-Box
Control Switch
Wires Knock-
Out
Vent Size
Co-axial DV Collar
on Fireplace -
8" Inner / 11" Outer
Top of Door Frame
Top of
Appliance
Spacers
FIREPLACE
(side view)
Min. 1” *
(25 mm)
Min. 4” *
(102 mm)
2 ft Vertical
Vent and
90° Elbow
Note: Non-combustible
sheathing and
housewrap (building
paper) should extend
to U-channels on
sides and bottom.
Wall Stud
Combustible
Sheathing
Non-combustible
sheathing required
below this point.
Extend housewrap
(building paper)
to this point.
Header
Non-combustible
~
*Insulation is
NOT ALLOWED in
clearance zones
around vent
components.
Keep this area free
from combustible
materials.
2 ft Vertical
Vent and
90° Elbow
Min. 1” *
(25 mm)
Combustible
materials are
allowed on face
of appliance
above this point
Combustible
Finished Wall
Materials
Wall Stud
Top of Door Frame
FIREPLACE
(side view)
Top of
Appliance
Spacers
Min. 4” *
(102 mm)
*Insulation is
NOT ALLOWED in
clearance zones
around vent
components.
Keep this area free
from combustible
materials.
Header
~
13
(330)
16
(406)
6-1/2
(165)
C
Inches
(millimeters)
1-1/2
(38)
D
A
B
E
~
D
B
13
(330)
16
(406)
6-1/2
(165)
C
Inches
(millimeters)
A
NOTE: For indoor/outdoor in-
stallations, the control side of
the fireplace must be installed
on the indoor side.
A
B
C
D
E
in
52-1/8
47-3/8
75-1/2
26-3/8
6
(mm)
(1324)
(1203)
(1918)
(668)
(152)
Dimension B is from fireplace base to top fram-
ing member.
Dimension C is from fireplace base to centerline
of horizontal vent pipe. Minimum vent framing:
INDOOR SIDE
OUTDOOR SIDE
Outdoor Surface (e.g., deck, patio, lanai)
2 ft vertical vent and one 90° elbow. For other
venting configurations, see Installation and
Operation Manual.
1/2” board for platform (shown in gray).
Dimension E is a 6” clearance from fireplace base
to outdoor surface (e.g., deck, patio, lanai) that is
required as a moisture barrier (not a combustible
clearance) on outdoor side only.
