Finishing Requirements; Cold Climate Insulation - Lennox Crestline LSBV-3628MN Installation Instructions Manual

LENNOX CRESTLINE™ SERIES B-VENT GAS FIREPLACES • 36"/42" LSBV MODELS • INSTALLATION INSTRUCTIONS
Combustible
Mantel and Trim
(See Note)
18 5/8"
11-3/8"
Min.
18"
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.
Figure 23

FINISHING REQUIREMENTS

Wall details and Combustible Mantels
Complete finished interior wall. To install the
appliance facing flush with the finished wall,
position framework to accommodate the thick-
ness of the finished wall (Figure 23 ). Both
Figures 23 and 24 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.
A hearth extension is not required with this
appliance. Any hearth extension used is for
appearance only and does not have to con-
form to standard hearth extension installation
requirements.
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.
12
Non
Combustible
Material
12"
Max.
12"
Min.
10"
Min.
Non-Combustible Material
Typical Installation
Max. Projection 12" (305 mm)
Combustible
Mantel
Figure 24
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Finished Wall
Header
Sheet Metal
1-3/8"
Spacer
Top Of Fireplace
5"
3 Sheet Metal Screws
#10 x 3/4" Max. Flat Head
Fireplace Opening
0" Clearance
to Combustible
Side Wall
(1524 mm)
12" Min.
(305 mm)

COLd CLIMATE INSULATION

If you live in a cold climate, seal all cracks around
your appliance with noncombustible material
and wherever cold air could enter the room. It
is especially important to insulate outside chase
cavity between studs and under floor on which
appliance rests, if floor is above ground level.
60"
Min. to
Ceiling