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900463-01E
12
INSTALLATION
Continued
INSTALLING DAMPER CLAMP ACCESSORY
FOR VENTED OPERATION
NOTE: When used as a vented appliance, appli-
ance must be installed only in a solid-fuel-burning
fi replace with a working fl ue and constructed of
noncombustible material.
For Massachusetts Residents Only:
Installation
of this gas log set as a vented appliance in the
Commonwealth of Massachusetts requires the
damper be permanently removed or welded in the
fully open position.
If your appliance is a manually-controlled model,
you may use this appliance as a vented product.
There are three reasons for operating your appli-
ance in the vented mode.
1. The fi replace does not meet the clearance to
combustibles requirements for vent-free opera-
tion.
2. State or local codes do not permit vent-free
operation.
3. You prefer vented operation.
If reasons number 1 or 2 above apply to you, you
must permanently open chimney fl ue damper. You
must install the damper clamp accessory
(to order,
see Accessories,
Page 40
)
. This will ensure vented
operation
(see
Figure 10
)
. The damper clamp will
keep damper open. Installation instructions are
included with clamp accessory.
See chart below for minimum permanent flue
opening you must provide. Attach damper clamp
so the minimum permanent fl ue opening will be
maintained at all times.
Damper
Damper
Clamp
Damper
Damper
Clamp
Damper
Figure 10 - Attaching Damper Clamp
Manufactured Fireplace
Masonry Fireplace
WARNING: You must secure this
heater to fi replace fl oor. If not, heater
will move when you adjust controls.
Moving heater may cause a gas leak or
log misplacement.
WARNING: If installing in a sunken
fi replace, special care is needed. You
must raise the fi replace fl oor to allow
access to heater control panel. This
will ensure adequate air fl ow and guard
against sooting and controls being
damaged. Raise fi replace fl oor with
noncombustible material. Make sure
material is secure.
CAUTION: Do not pick up heater
base assembly by burners. This could
damage heater. Only handle base as-
sembly by grates.
IMPORTANT
:
Make sure the heater burners are
level. If appliance is not level, appliance will not
work properly.
INSTALLING APPLIANCE BASE ASSEMBLY
Area of Various Standard Round Flues
Diameter
Area
5"
6"
7"
8"
20 sq. inches
29 sq. inches
39 sq. inches
51 sq. inches
Chimney
Height
Minimum Permanent
Flue Opening
6' to 15'
15' to 30'
39 sq. inches
29 sq. inches
