Lennox Hearth Crestline LSBV-3628MN - Manual (Page 6)

6
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Right Side of Fireplace
LENNOX HEARTH PRODUCTS • CRESTLINE™ SERIES B-VENT GAS FIREPLACES • 36"/42" LSBV MODELS • INSTALLATION INSTRUCTIONS
CLEARANCES
Minimum clearance to combustibles for the
appliance is as follows: sides and back - 3/8"
(9.52 mm), floor - 0" (0 mm), adjacent wall - 0"
(0 mm), ceiling - 37-1/2" (953 mm). Service
Clearances, Front - 3' (0.9 m).
NOTE: 3" (75 mm) minimum clearance is
required above any inclined vent component.
1" minimum clearance is required to the sides
of vertical vent.
Hearth Extension - A hearth extension is not
required with this appliance. If a hearth exten-
sion is used, do not block the lower control
compartment door. Any hearth extension used
is for appearance only and does not have to
conform to standard hearth extension instal-
lation requirements.
Wall Finishes / Surrounds / Mantels
Note: Combustible wall finish materials and/
or surround materials must not be allowed to
encroach the area defined by the appliance front
face (black sheet metal). Never allow combus-
tible materials to be positioned in front of or
overlapping the appliance front face.
Non-combustible materials, such as surrounds
and other appliance trim, may be installed on
the appliance face with these exceptions: they
must not cover any portion of the removable
glass door (if used) or control compartment.
Vertical installation clearances to combustible
mantels vary according to the depth of the
mantel. See Figure 6. Mantels constructed of
non-combustible materials may be installed
at any height above the appliance opening;
however, do not allow anything to hang below
the fireplace hood.
Minimum clearance requirements include any
projections such as shelves, window sills,
mantels, etc. above the appliance.
NOTE: We recommend the use of high tem-
perature paint (rated 175° F or higher) on the
underside of the mantel.
To install the appliance facing flush with the
finished wall, position framework to accommo-
date the thickness of the finished wall (Figure
6). Both Figures 6 and 7 show a combustible
mantel shelf projecting a maximum of 12" (305
mm) from the wall, and which must be installed
a minimum distance of 12" (305mm) from the
top of the firebox opening. No other mantel
length/height combinations are allowable for
this fireplace.
Figure 7
60"
(1524 mm)
Min. to
Ceiling
12" Min.
(305 mm)
0" Clearance
to Combustible
Side Wall
Max. Projection 12" (305 mm)
Combustible
Mantel
Figure 6
Fireplace Opening
Typical Installation
10"
Min.
12"
Min.
18"
12"
Max.
Combustible
Mantel and Trim
(See Note)
3 Sheet Metal Screws
#10 x 3/4" Max. Flat Head
5" Top Of Fireplace
Non
Combustible
Material
Sheet Metal
Spacer
Finished Wall
Header
Note: Mantel At Minimum Height Should Be Affixed to Framing Hinge Posts At Right
And Left Of The Fireplace. Do Not Use Molly Bolts In Front Of The Fireplace.
18 5/8"
Non-Combustible Material
1-3/8"
11-3/8"
Min.