27
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
LENNOX HEARTH PRODUCTS • MERIT PLUS
®
DIRECT VENT GAS FIREPLACES (MPD33/35/40/45) • INSTALLATION INSTRUCTIONS
Step 9. INSTALL VOLCANIC STONE,
GLOWING EMBERS, ANd LOGS
Glowing Embers
Bag of Glowing
Embers (rockwool)
Separate into Quarter
Size (separate) Pieces
Figure 51
Glowing Embers
Figure 52
- Glowing Ember Placement
REFERENCE
Firebox Accessories / Parts
Cat. No.
Model No.
description
88L53
FGE
Bag of Glowing Embers
80L42
FdVS
Bag of decorative
Volcanic Stone
Step 3.
Separate the Glowing Ember (Rockwool)
into pieces about the size of a quarter (
Figure
51
). Keep the pieces fluffed up, not matted.
Distribute these pieces over the front surface
of the burner, as shown in
Figure 52
. 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.
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 53, 54, and 55
. 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 53
for MPD33 Series appli-
ances, to
Figure 54
for MPD35 Series appli-
ances and to
Figure 55
for MPD40 and MPD45
Series appliances.
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 appli-
ance 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 accord-
ing to the log installation
instructions, flame impinge-
ment and improper combus-
tion could occur and result in
soot and/or excessive produc-
tion of carbon monoxide (CO),
a colorless, odorless, toxic
gas.
NOTE:
Turn off all electricity to the appliance
before you install volcanic stone, embers and
logs.
Step 1.
Remove the appliance front door (see
Removing Glass Encloslure panel on
Page 32
.
Step 2. Install decorative volcanic stone -
Sprinkle the decorative volcanic stone in a pleas-
ing 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 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 em-
ber material annually. Replacement Glowing
Embers are available (Catalog Number 88l53).
