Gas Log Set Installation
15
NBST27 Unvented Gas Log Set
Monessen • NBST27 Gas Log Set Installation/Owner's Manual • 81D3032 • Rev A • 08/16
LOG PLACEMENT
NOTE: Thisunitissuppliedwith10ceramicberlogs.Do
not handle the logs with bare hands. Always wear gloves
to prevent skin irritation from ceramic bers.After han-
dling the logs, wash your hands gently with soap and wa-
tertoremoveanytracesofbers.
CAUTION
DO NOT sprinkle volcanic rock on the logs,
around the pilot, or on or near burners. This
may cause sooting. Place volcanic rock only
on the oor of the replace.
During initial operation of the new heater,
new burning logs and/or rock wool will give
off a paper burning smell and orange ames
will be present. Simply open the windows
for a few hours to vent the odor.
ROCK WOOL PLACEMENT
1. Place dime size pieces of rock wool evenly over small
burner ports starting at pilot and down each side of
burner. Avoid placing rock wool on slots on either side
of burner between the air defectors. Figure 16. Wash
hands after placing rock wool. Skin irritation may oc-
cur.
LOG PLACEMENT
BeginonSideA,valveonleftasyoufacethereplace.
1. Place log #1 on burner by aligning two (2) holes on
bottom of log with two (2) pins on burner. The tallest
part of the log is on the valve side of burner. Gently
push log down until it comes in contact with burner sur-
face. Figure 17
Figure 16 -
Place Rock Wool
LG648
NBST rockwool
Pilot
Rockwool
Rock Wool
Horizontal
Grate Bar
Grate Tine
Grate Tines
Horizontal Grate Bar
The positioning of the logs is critical to the safe and
clean operation of this heater. Sooting and other
problems may result if the logs are not properly
and rmly positioned in the appliance. Never add
additional logs or embellishments such as pine
cones, vermiculite or rock wool to the heater. Only
use the logs and 2G-RW rock wool (for NB18), or
3G-RW rock wool (for NB24) supplied with the unit.
Failure to position the parts in accordance with
diagrams below or to use only parts specically
approved for this heater may result in property
damage or personal injury.
WARNING
LG650
NBST log 1
Log 1
Control
Valve
Figure 17 -
Place Log #1
2. Place log #2 on left grate tines by aligning the ‘V’
notches in the log with grate tines. The groove on the
bottomofthelogshouldbermlyseatedonthegrate
bar. Figure 18
LG651
NBST log 2
Log #2
Figure 18 -
Place Log #2










