GLASS CARE
Glass Replacement
The glass used for the Brentwood™ LV fireplace
is a high temperature ceramic glass (1,400° F /
760° C). If the glass breaks, it must be replaced
with an identical ceramic glass. Tempered glass
or ordinary glass will not withstand the high
temperatures of the Brentwood LV fireplace.
Replacement glass should be purchased from
a Lennox Hearth Products dealer (see “Replace-
ment Parts”, Page 28). DO NOT OPERATE THE
UNIT WITH CRACKED OR BROKEN GLASS.
Glass Cleaning
The Brentwood LV fireplace is designed to
keep the glass clean under normal operating
conditions. If the Brentwood LV fireplace is
operated continuously with the combustion air
controls closed, the glass will tend to get dirty
unless the fuel, firebox and glass are maintained
at hot temperatures (see “Refueling For Best
Performance”). To clean the glass, there are a
number of specially designed cleaners. Your
authorized Lennox Hearth Products dealer can
recommend a suitable cleaner which is available
in your area. Regular household glass cleaners
will not clean creosote. Do not use abrasives
such as steel pads, steel wool or oven cleaner
as they will scratch the glass.
DO NOT USE CHEMICAL GLASS CLEANERS
ON PAINTED SURFACES AS IT MAY CAUSE
THE PAINT TO PEEL.
CAUTION : DO NOT ALLOW WINDOW CLEANER
TO GET IN CONTACT WITH DOOR OR PAINT
ON FACADE OR DOOR. ONCE CLOSED,
CONTACT OF GLASS CLEANER WITH THE
FIREPLACE FACADE CAN PROVOKE PAINT
PEELING OFF.
If possible, you should choose a location where
the chimney will pass through the house without
cutting floor or roof joists (see fireplace dimen-
sions Page 11).
Usually, no additional floor support is needed
for the fireplace. The adequacy of the floor
can be checked by first estimating the weight
of the fireplace system. Weights are given in
the appendix. Note the floor construction and
consult your local building code to determine
if additional support is needed.
The Brentwood LV fireplace may be installed
directly on the floor or on a raised base (for
proper guidelines, refer to “Hearth Extension
Requirements”) and a minimum of 6’8” (2 m)
measured from the base of the appliance to the
ceiling is required.
When selecting the location, the chimney outlet
position and the direction of the wind are impor-
tant factor affecting the chimney performance.
To allow a maximum draft and to reduce wind
turbulence, the chimney must:
• Penetrate the highest part of the roof.
• Be installed as far as possible of roof offsets,
trees or any other obstructions that may
cause wind turbulence and back drafts in
the chimney.
• The least amount of offsets (elbows) pos-
sible. Note: A maximum of 2 offsets is
allowed.
Gasket Replacement
Remove the door from the unit (see Page 7)
and lay it on a clean unabrasive surface. To
replace the gasket, first remove all of the old
gasket and gasket cement. Make sure that the
surface is totally clean before applying new
cement (a high temperature silicone caulking
rated at 500° F [260° C] is suitable) or adhesion
problems may result. Apply gasket cement to
the gasket channel and install the new gasket.
This replacement part is available from your
Lennox Hearth Products dealer in the following
dimensions:
Gasket Length* Dimensions Part No.
Around
Glass
74
(1880)
3/16” x 1”
(4.8 x 25.4) SR1685J
On Door
Frame
77-3/4
(1975)
5/8 dia.
(15.9) SR1823G
Table 1 * Inches (millimeters)
FIREPLACE INSTALLATION
Locating The Brentwood LV Fireplace
The best location to install your fireplace is
determined by considering the location of
windows, doors, and the traffic flow in the room
where the fireplace is located, allowing space
in front of the unit for the hearth extension and
the mantel, and taking into consideration the
location of the hot air ducts (optional), outside
air kit and chimney.
8
Marginal Location
Wind Direction
Location
Not
Recommended
Outside Air Intake
Facing the Wind
Location
Not
Recommended
Location Recommended
Figure 6 NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.