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111640-01B
10
For more information, visit www.desatech.com
For more information, visit www.desatech.com
INSTALLATION
Continued
INSTALLATION
Installing Damper Clamp Accessory For Vented Operation
Installing Heater Base Assembly
INSTALLING DAMPER CLAMP ACCESSORY
FOR VENTED OPERATION
Note:
When used as a vented heater, appliance must be installed
only in a solid-fuel burning fireplace with a working flue and
constructed of noncombustible material.
If you choose to use your heater as a manually-controlled model (no
remote control installed), 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 re-
quirements 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 26). This will insure 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 flue
opening will be maintained at all times.
Minimum
Chimney Permanent Flue
Height (ft.) Opening (sq. ins.)
6' to 15' 39 sq. inches
15' to 30' 29 sq. inches
Figure 10 - Attaching Damper Clamp
Damper
Clamp
Damper
Manufactured Fireplace
Masonry Fireplace
Damper
INSTALLING HEATER BASE ASSEMBLY
IMPORTANT:
Make sure the heater burners are level. If heater is
not level, heater will not work properly.
Installation Items Needed
• hardware package (provided with heater)
• approved flexible gas hose (not provided) (if allowed by local
codes)
• sealant resistant to propane/LP gas, not provided
• electric drill with 3/16" masonry drill bit
Note:
Install optional remote receiver and hand-held remote kit (see
Accessories, page 26) before installing gas log heater. See installa-
tion instructions included with the kit.
1. Apply pipe joint sealant lightly to male threads of the fitting to
be threaded into gas regulator. Connect approved flexible gas
hose to gas regulator of heater (see Figure 11).
2. Locate masonry screws in hardware package.
3. Position heater base assembly in fireplace.
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 insure
adequate air flow and guard against sooting and con-
trols being damaged. Raise fireplace floor with non-
combustible material. Make sure material is secure.
CAUTION: Do not pick up heater base assembly
by the burner. This could damage heater. Only handle
base assembly by grates.
WARNING: You must secure this heater to fire-
place floor. If not, heater will move when you adjust
controls. Moving heater may cause a gas leak.
CAUTION: Do not remove the data plates attached
to the heater base assembly. The data plates contain
important warranty and safety information.
Figure 11 - Attaching Flexible Gas Hose to Heater
Flexible Gas Hose
(if allowed by local codes)
Fitting
Area of Various
Standard
Round Flues
Diameter Area
(inches) (sq. inches)
520
629
739
851