12
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 6: 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
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 fl ame peaks
and should be positioned so they do not
impinge the fl ames.
Step 5.
Position the individual logs as shown
in
Figures 8
,
9
, and
10
. Logs should be
placed in the order shown. All logs that have
notches to fi t 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 fl ame appearance and prevent
sooting. When positioned properly as shown,
logs will be positioned between fl ame peaks
and will not impinge any fl ames.
Refer to
Figure 8
for MPB33 series
appliances,
Figure 9
for MPB35 series
appliances, and
Figure 10
for MPB40 and
MPB45 series appliances.
WARNING
• DO NOT attempt to install
the logs until the appliance
installation 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 fl ame pattern.
Any attempt to use a different
log set in the fi replace will void
the warranty and will result
in incomplete combustion,
sooting, and poor fl ame 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, volcanic 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
according to the log
installation instructions, fl ame
impingement and improper
combustion could occur and
result in soot and/or excessive
production of carbon monoxide
(CO), a colorless, odorless,
toxic gas.
Step 1.
Remove the appliance front door (see
Removing Glass Enclosure panel on
Page 11
.
Step 2. Install volcanic stone—
Sprinkle the
volcanic stone in a pleasing pattern. The
volcanic stone should be placed directly on
top of the fi rebox bottom, along the front and
to the back at the right and left sides of the
burner. Position any optional ceramic fi ber
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 7
).
Keep the pieces fl uffed up, not matted.
Distribute these pieces over the front
surface of the burner, as shown in
Figure 6
.
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 7: Separating Glowing
Embers
