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125568-01B
12
INSTALLATION
Continued
INSTALLING DAMPER CLAMP
ACCESSORY FOR vENTED
OPERATION
Note: When used as a vented heater, ap-
pliance must be installed only in a solid-fuel
burning fireplace with a working flue and con
-
structed of noncombustible material.
For Massachusetts Residents Only:
Instal-
lation of this gas log set as a vented appliance
in the Commonwealth of Massachusetts re-
quires the damper be permanently removed
or welded in the fully open position.
If your heater is a manually-controlled model,
you may use this heater as a vented product.
There are three reasons for operating your
heater in the vented mode.
1. The fireplace does not meet the clearance
to combustibles requirements for vent-
free operation.
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 flue
damper. You must install the damper clamp
accessory (to order, see
Accessories
, page
40). This will insure vented operation (see Fig-
ure 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 flue open-
ing will be maintained at all times.
Area of various Standard Round Flues
Diameter
Area
5"
20 sq. inches
6"
29 sq. inches
7"
39 sq. inches
8"
51 sq. inches
Chimney
Minimum Permanent
Height
Flue Opening
6' to 15'
39 sq. inches
15' to 30'
29 sq. inches
Damper
Damper
Clamp
Damper
Damper
Clamp
Damper
Figure 10 - Attaching Damper Clamp
Manufactured Fireplace
Masonry Fireplace
INSTALLING HEATER BASE
ASSEMBLY
WARNING: You must secure
this heater to fireplace floor. If
not, heater will move when you
adjust controls. Moving heater
may cause a gas leak.
WARNING: If installing in a
sunken fireplace, special care
is needed. You must raise the
fireplace floor to allow access to
heater control panel. This will in
-
sure adequate air flow and guard
against sooting and controls be
-
ing damaged. Raise fireplace floor
with noncombustible material.
Make sure material is secure.
CAUTION: Do not pick up
heater base assembly by burn
-
ers. This could damage heater.
Only handle base assembly by
grates.
IMPORTANT:
Make sure the heater burners
are level.
