Heatilator • Novus NNXT • 4055-879 • Rev E • 5/10
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G. Clean the Appliance
Clean/vacuum any sawdust that may have accumulated
inside the fi rebox or underneath in the control cavity.
H. Accessories
Install approved accessories per instructions included
with the accessories. Refer to Section 17.
WARNING! Rick of Fire and Electric Shock! Use ONLY
Hearth & Home Technologies-approved optional acces-
sories with this appliance. Using non-listed accessories
could result in a safety hazad and will void the warranty.
I. Place the Rockwool
WARNING! Risk of Explosion! Follow rockwool place-
ment instructions. DO NOT place rockwool directly over
burner ports. Replace rockwool material annually. Improp-
erly placed rockwool interferes with proper burner opera-
tion.
• Rockwool is shipped with this gas appliance.
• Place a small amount of 1/2 in. diameter pieces (dime-
size) rockwool on the burner pan so that the rockwool
touches, but does not cover, the holes in the burner
pan (refer to Figure 15.5). This will provide the “glowing
embers” look.
• It is not necessary to use the entire bag. Save the
remaining rockwool for future use.
K. Place the Vermiculite
Sprinkle on top of lava rock.
Rockwool
Lava Rock &
Vermiculite
Figure 15.6 Placement of Rockwool, Lava Rock and Vermiculite
J. Place the Lava Rock
See Figure 15.6.
L. Assemble Logs
• Base logs have been permanently mounted on the
burner pan/hearth sheet and should not be moved.
Figure 15.7 Base Logs
Figure 15.8 Install Left Middle Log
Figure 15.9 Install Left Top Log
• Install the left middle log by aligning the hole in the
bottom of the log with the pin on the left side of the left
bottom log.
• Install the left top log by aligning the slot in the bottom
of the left top log with the left pin in the back log. The
back of the top log should set on the back log with the
tip resting on the left middle log.