Mpb33 log placement – Lennox International Inc. MERIT PLUS MPB3530CNM-B User Manual
Page 16

16
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
LENNOX HEARTH PRODUCTS • MERIT PLUS
®
B-VENT GAS FIREPLACES (MPB33/35/40/45) • INSTALLATION INSTRUCTIONS
1
Position the individual logs as shown below. Logs should be 
placed in the order shown. Position the rear log on the brackets 
at the rear of the firebox with the log's notches directly over the 
brackets. Position the right log (log no. 3) by inserting the pin 
from the rear log into the hole on its upper end. Place the left log 
and then the smaller left and right top logs. All logs that have 
notches to fit over the grate tines should be positioned with these 
notches directly against the grate. All top logs that rest on lower 
logs, do so over flattened mounting faces in the bottom logs.
Proper log and twig placement is critical to encourage 
outstanding flame appearance and prevent sooting. 
3
2
4
5
6
1
2
3
4
6
5
Figure 26: Log Set 24M15 Placement
* Item
Description (stamped #)
1
Log, Rear (39-12)
2
Log, Left (39-1)
3
Log, Right (39-2)
4
Log, Top Center (39-
13)
5
Log, Top/Left (39-3)
6
Log, Top/Right (39-4)
MPB33 LOG PLACEMENT
Catalog Number for the entire log set: 24M15
