Lennox MPB3328CNM-B Installation Instructions Manual page 17

Proper twig placement is critical to prevent sooting. Twigs should be
placed in the gaps between the flame peaks and should be positioned
so that at no time they impinge the flames.
1. Remove the appliance front door.
2. Remove the log set from the interior of the fireplace.
3. Remove the logs from their packaging. Handle logs carefully to prevent
breakage.
4. mpb-4035 & mpb-4540 models - Remove the restraining strap from
the grate tines. Ensure the grate is fully inserted into the holes on the
firebox rear panel and over the indents on the firebox floor.
Glowing Embers, Vermiculite, decorative Volcanic Stone And Log
placement Instructions:
Step 1. Separate the Glowing Embers (Rockwool) into pieces about
the size of a quarter (see Figure 26). Keep the pieces fluffed up, not
matted.
mpb-3328 & mpb-3530 models -
Distribute these pieces over the burner as shown in Figure 27. Do not use
more than is shown. The glowing embers should not be placed directly
over the large burner slots as shown in Figure 27.
mpb-4035 & mpb-4540 models -
Place the center log (Log No. 1) on the burner as shown on Page 20.
Distribute the glowing ember pieces at the front of the burner as shown
in Figure 28. Do not use more than is shown. The glowing embers
should not be placed directly over the large burner slots as shown in
Figure 28.
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. Re-
placement Glowing Embers are available (Catalog Number 88L53).
Step 2. Mound up a portion of the vermiculite (light colored material) in
front of the burner and grate. Sprinkle the dark colored decorative volcanic
stone on top of the vermiculite in a pleasing pattern. For best results,
spread in a non-uniform manner while ensuring complete coverage of
the black sheetmetal surface.
See Figure 27 - MPB-3328 or MPB-3530, or Figure 28 - MPB-4035 or
MPB-4540 models.
Note: Do Not place vermiculite or decorative volcanic stone on top of
the gas burner where it will block the burner ports.
Step 3. Position the individual logs as described on Page 18 (MPB-3328),
Page 19 (MPB-3530) or Page 20 (MPB-4035 and MPB-4540).
Note: Your application may not require the use of all of the provided
vermiculite, or decorative volcanic stone. Replacement vermiculite,
volcanic stone and glowing embers is available (see below for ordering
information).
REFERENCE
Firebox Accessories / Parts
Cat. No. Model No.
FGE
88L53
H6319
80L42 FdVS
Description
bag of Glowing Embers
Vermiculite, bag
bag of decorative Volcanic Stone
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Glowing Embers
Bag of Glowing
Embers (rockwool)
Figure 26
Vermiculite Glowing Embers
(light colored material)
do Not place Glowing Embers Over Large burner ports
mpb-3328 and mpb-3530
Figure 27
Vermiculite Glowing Embers
(light colored material)
do Not place Glowing Embers Over Large burner ports
mpb-4035 and mpb-4540
Figure 28
Separate into Quarter
Size (separate) Pieces
decorative Volcanic stone
(dark colored material)
decorative Volcanic stone
(dark colored material)
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