Heat & Glo Fireplace GEM42 - Manual (Page 22)

22 Heat & Glo • GEM42 • 371-900 Rev. N • 2/05
Step 5. Installing the Optional Heat-Out
or Heat-Zone Kits
Figure 24
3. Cut and frame a 12” wide x 10” tall (305 x 254mm) hole in
the exterior wall. The center of the hole will be 22-15/16”
(583mm) above the base of the fireplace. See Figure 3.
4. Install the interior firestop with the hole towards the top.
Secure the firestop to wall framing members.
Reference the Heat-Out kit instructions for the remaining
installations steps.
NOTE: There must be NO INSULATION or other com-
bustibles inside the framed firestop opening.
Heat-Out Kit
1. Remove the Heat-Out knockout from the fireplace and
discard it (see Figure 24).
2. Center the rear collar around the exposed hole and at-
tach it to the fireplace with 3 screws. NOTE: Remove the
bottom knockout on the collar for typical 2 x 4 or 2 x 6 wall
construction. See Figure 24.
REAR COLLAR
BOTTOM
KNOCKOUT
HEAT-OUT
KNOCKOUT
HEAT-ZONE
KNOCKOUTS
Heat-Zone Kit
1. Remove the knockout from the top of the fireplace and
discard it (see Figure 24).
2. Center the duct collar around the exposed hole and at-
tach it to the fireplace with 3 screws. NOTE: Do this BE-
FORE final positioning of the fireplace.
3. Determine the location for the air register/fan housing
assembly.
Reference the Heat-Zone kit instructions for the remaining
installations steps.
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Step 6 The Gas Control System
WARNING: THIS UNIT IS NOT FOR USE WITH
SOLID FUEL.
The type of gas control system used with this model is
Intermittent Pilot Ignition.
Intermittent Pilot Ignition System
This system includes millivolt control valve, standing pilot,
thermopile/thermocouple flame sensor, and piezo ignitor.
WARNING: 110-120 V AC MUST NEVER BE
CONNECTED TO A CONTROL VALVE IN A
MILLIVOLT SYSTEM.
WARNING: CONTINUOUS 110-120 VAC SER-
VICE MUST BE WIRED DIRECTLY TO THE FIRE-
PLACE JUNCTION BOX.
Figure 25. Gas Controls System
FLAME SENSOR
ROD
Intermittent Pilot Ignition