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Heatilator • GB4336/GB4992 • 4003-085 Rev H • 04/06 25
A. Remove the Shipping Materials
Remove shipping materials from inside or underneath the
fi rebox.
Shock Risk
Fire Risk
Use ONLY optional accessories approved
for this appliance.
• Using non-listed accessories voids
warranty.
• Using non-listed accessories may result
in a safety hazard.
• Only Hearth & Home Technologies
approved accessories may be used
safely.
WARNING
Explosion Risk
• Follow rockwool placement instructions
in this manual.
• Do NOT place rockwool directly over
burner ports.
• Replace rockwool material annually.
Improperly placed rockwool interferes with
proper burner operation.
WARNING
12
12
Appliance Setup
B. Clean the Appliance
Clean/vacuum any sawdust that may have accumulated in-
side the fi rebox or underneath in the control cavity.
C. Accessories
Install approved accessories (refer to Section 16) per in-
structions included with accessories.
D. Install the Refractory
Install refractory per instructions included with kit.
E. Lava Rock, Vermiculite, Rockwool Placement
Placing the Lava Rock and Vermiculite
• Place lava rock on top of the lava rock tray in front of and
under the burner. See Figure 12.1.
• Sprinkle vermiculite evenly over area covered by lava rock.
See Figure 12.2.
• It is not necessary to use entire bag of lava rock or
vermiculite.
Placing the Rockwool
• Place 1/2 in. pieces of rockwool under front logs and on
bottom hearth log.
• Place rockwool the full length of the burner., but not packed
against it. See Figure 12.3.
• It is not necessary to use all the rockwool.
Figure 12.1 Placement of Lava Rock
Figure 12.2 Placement of Vermiculite
Figure 12.3 Placement of Rockwool