Step 12. Hood Installation; Finishing Requirements; Cold Climate Insulation - Lennox Hearth Products MNTSVBE User Manual

Step 12. HOOD INSTALLATION

All of these appliances must have hoods installed prior to operating on all sides with glass
enclosure panels.
On all clean face units, slide the hoods into the slots on the lower edges of the radiant panels ( Figure 28 ).

FINISHING REQUIREMENTS

Wall Details
Complete finished interior wall. To install the appliance facing flush with the finished wall, position
framework to accommodate the thickness of the finished wall ( Figures 28 ).
A hearth extension is not required with this appliance. If a hearth extension is used, do not block the
control compartment access panel. Any hearth extension used is for appearance only and does not
have to conform 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
combustible materials to be positioned in front of or overlapping the appliance front face.
See Figures 28.
Non-combustible materials, such as surrounds and other appliance trim, may be installed on the appliance
front face with these exceptions: they must not cover any portion of the glass or louvers; they must not cover
any portion of the top radiant panel and the air gaps surrounding the top radiant panel.
Vertical installation clearances to combustible mantels vary according to the depth of the mantel.
(See Figure 27) . 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 hood.
14
12
(356)
(305)
10
(254)
*Note - The side walls of mantels may protrude
beyond the front face of the fireplace a maximum
of 5 inches (127mm) at 0 inch clearance to the
sides of the fireplace.
Figure 27
MANTEL CLEARANCES
Inches (mm)
12 (305) MANTEL
10 (254) MANTEL
8 (203) MANTEL
6 (152) MANTEL
4 (102) MANTEL
8
2 (51) MANTEL
6
(203)
(152)
4
(102)
NOTE - Hood shown as positioned
in louvered front model. The hood
position in the flush faced front model
is lower than shown.
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
TOP OF
APPLIANCE

COLD CLIMATE INSULATION

For cold climate installations, 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. Gas line holes and other open-
ings should be caulked or stuffed with unfaced
fiberglass insulation. In cold climates, if the
fireplace is being installed on a cement slab, a
sheet of plywood or other raised platform can
be placed underneath to prevent conducting
cold up into the room. It also helps to sheetrock
inside surfaces and tape for maximum air
tightness and caulk firestops.
Combustible Wall
This Area Must Remain Clear
Framing
of Combustible Materials
1" Min
(25 mm)
Combustible
Wall Framing
Spacer
Combustible
Finished Wall
Materials May
Top of Appliance
Touch Top of
Unit Radiant panel
Top of Door Frame
Hood must be installed as shown.
Clean Face Models
Figure 28
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