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22
Installation
13.0 Venting Instructions
WARNING: Operation of this heater when not connected to a properly installed and maintained venting system can result
in carbon monoxide (CO) poisoning and possible death. The appliance must not be connected to a chimney flue serving a
separate solid fuel burning appliance. The venting system shall be installed according to these instructions.
CAUTION
Only approved 3” (76mm) double wall aluminum or stainless flex liners and approved vent terminals are to be used for this appliance.
This appliance is designed for dual 3” (76 mm) double wall aluminum flex liner. The liner must run the entire length of the chimney from
the appliance to the termination.
The flue length must be a minimum of 10’ (3.05 M) and a maximum of 40’ (12.2 M) from the top of the gas fireplace insert.
Masonry chimneys may take various contours which the flexible liner will accommodate, however, keep the flexible liner as straight as
possible, avoiding unnecessary bending but at all times keep a minimum of 3” (76 mm) inside bend radius.
The Air Intake Flex Liner must form a tight connection to the inlet
air collars of the termination cap and the appliance.
The Exhaust Flex Liner must form a tight connection to the exhaust
collars of the termination cap and the appliance.
The Air intake and Exhaust connections are marked on the gas
appliance. See Figure 13.0.01.
DO NOT REVERSE THESE CONNECTIONS
CAUTION
To ensure that the venting is not accidentally obstructed or
punctured, the damper of the host fireplace must be permanently
disabled by either complete removal of the damper, or by being
fully blocked open, for the installation of a gas fireplace insert.
Figure 13.0.01
: Intake & Exhaust as viewed from the top of the
fireplace.
Using Vent Restrictors
Vent restrictors may be required depending on the length of flex liner being used. Place Vent Restrictor on the exhaust collar in the
position shown prior to attaching the Flex Liner. Restrictors are to be used ONLY when operating with NATURAL GAS.
Intake
Exhaust
Vent length
Restrictor use
10' - 13.9'
None
14' - 19.9'
Restrictor #1
20' and above
Restrictor #2
Restrictor #1
Restrictor #2
Figure 13.0.02
:
Rear View of Fireplace
Note:
Do not use a restrictor if installing
22-LKF2.
Summary of Contents for 22-DVIE22LN-1
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