13
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
LENNOX HEARTH PRODUCTS • MERIT PLUS
®
B-VENT GAS FIREPLACES (MPB33/35/40/45) • CARE AND OPERATION INSTRUCTIONS
INSTALL VOLCANIC STONE, GLOWING
EMBERS, AND LOGS
NOTE:
Turn off all electricity to the appliance
before you install volcanic stone, embers and
logs.
Glowing Embers
Figure 7 - Glowing Ember Placement
Cat. No.
Model No.
Description
88L53
FGE
Bag of Glowing Embers
80L42
FDVS
Bag of Decorative
Volcanic Stone
Table 5 - Firebox Accessories
WARNING
•
DO NOT attempt to install the
logs until the appliance instal-
lation has been completed, the
gas line connected, and tested
for leaks and the initial burner
operation has been checked out.
•
The size and position of the log
set was engineered to give the
appliance a safe, reliable, and
attractive flame pattern. Any
attempt to use a different log
set in the fireplace will void
the warranty and will result in
incomplete combustion, soot-
ing, and poor flame quality.
•
Logs get very hot and will
remain hot up to one hour after
gas supply is turned off. Handle
only when logs are cool. Turn off
all electricity to the appliance
before you install grate, volca-
nic stone, embers and logs.
•
This appliance is not designed
to burn wood. Any attempt to
do so could cause irreparable
damage to the appliance and
prove hazardous to your safety.
•
If logs are not installed accord-
ing to the log installation
instructions, flame impinge-
ment and improper combustion
could occur and result in soot
and/or excessive production of
carbon monoxide (CO), a color-
less, odorless, toxic gas.
Step 1.
Remove the appliance front door (see
Removing Glass Enclosure panel on
Page 12
.
Step 2. Install volcanic stone -
Sprinkle the
volcanic stone in a pleasing pattern. The volcanic
stone should be placed directly on top of the
firebox bottom, along the front and to the back
at the right and left sides of the burner. Position
any optional ceramic fiber liners before placing
the volcanic stone. Logs should be positioned
after the volcanic stone.
NOTE:
This appliance is provided with enough
glowing embers for several applications,
do not feel compelled to use all that is in a
new bag. For best glowing effect, replace the
ember material annually. Replacement glowing
embers are available (Catalog Number 88L53).
Step 3.
Separate the glowing embers into pieces
about the size of a quarter
(
Figure 8
)
. Keep the
pieces fluffed up, not matted. Distribute these
pieces over the front surface of the burner,
as shown in
Figure 7
. Do not use more than
is necessary. When properly positioned, the
glowing embers will cover approximately 65%
of the front burner and with no appreciable
gaps or openings. Ensure that the main burner
ports remain uncovered by the ember material.
Figure 8 - Separating Glowing
Embers
Step 4. Placement of Logs -
All top logs that
rest on lower logs, do so over notches, indents
or nubs. Proper log placement is critical to
prevent sooting. Logs should be placed in the
gaps between the flame peaks and should be
positioned so they do not impinge the flames.
Step 5.
Position the individual logs as shown in
Figures 9
,
10
, and
11
. Logs should be placed
in the order shown. All logs that have notches
to fit over the grate tines should be positioned
with these notches directly against the grate.
Handle logs carefully to prevent breakage.
Proper log placement is critical to encourage
outstanding flame appearance and prevent
sooting. When positioned properly as shown,
logs will be positioned between flame peaks
and will not impinge any flames.
Refer to
Figure 9
for MPB33 series appliances,
Figure 10
for MPB35 and MPB40 series
appliances, and
Figure 11
for MPB45 series
appliances
