Venting Components & Configuration; Installing A Venting System; Connecting Your Wood Fireplace Insert; Connecting To A Prefabricated Metal Chimney - HearthStone Clydesdale 8491 Owner's Manual

Hearthstone
Venting Components & Configuration

Installing a Venting System

DO NOT CONNECT THIS UNIT TO ANY AIR
DISTRIBUTION DUCT OR SYSTEM
Secure all joints, including attaching the flue liner
to the Fireplace Insert's flue collar, with three
sheet metal screws. Install #10 x 1/2" (3 mm x 13
mm) sheet metal screws into the holes pre-drilled in
the flue collar. Eliminating the screws can cause
joints to separate from the vibrations that result from
a creosote chimney fire.
Remember, the NFPA has recommended minimum
clearances for chimney connectors to combustibles
such as walls and ceilings. Once the Fireplace Insert
is installed at safe distances from these combustible
surfaces, it is important to maintain these connector
clearances for the remainder of the installation.
Connecting Your Wood Fireplace
Insert
You can connect your Clydesdale to a prefabricated
metal chimney or a masonry chimney. See Figure 5
for an example to aid in connections.
With all chimneys, a positive connection must
be made between the fireplace insert's flue
collar and the chimney.
In an existing Masonry Chimney, use one of the
approved following methods:
In the U.S:
1. Connect the insert to a listed 6" stainless steel
flexible connector that connects to a listed 6"
stainless steel liner extending the full length of
the chimney.
 A 22 ga. or greater Blue Steel 6"
connector is also acceptable to
attach to the flue liner.
2. Connect the insert to a listed 6" stainless steel
flexible connector that extends beyond the
fireplace's damper into an approved flue tile liner.
3. In all cases, a sealed block off plate, or a plug of
other noncombustible material such as unfaced
fiberglass insulation, must be installed at the
damper area of the existing fireplace to seal the
chimney from the room air.
In Canada:
4. The fireplace insert must be installed with a
continuous chimney liner
diameter of 6" extending from the fireplace insert
to the top of the chimney. The chimney liner must
conform to the class 3 requirements of chimney
liner standards can/ulc-s635 or can/ulc-s640.
Do not use aluminum or galvanized steel pipe
as a connector or chimney liner. These
materials are not suitable for solid fuel
burning applications.
Connecting to a Prefabricated
Metal Chimney
You can install the Clydesdale in masonry or zero
clearance fireplaces. Before installing the stove in a
factory-built fireplace, the fireplace must have the
following characteristics:
1) Listed per UL 127 or ULC S610.
2) Include a full height listed chimney liner meeting
type HT requirements (2100° Fahrenheit) per UL
1777 (United States) or ULC S635 (Canada)
standards.
3) The means to prevent room air passage to the
chimney cavity of the fireplace.
4) Does not disturb the airflow in or within the
fireplace when installed (louvers, or cooling air
inlet or outlet ports must not be blocked).
5) Not be altered in any way, except for the
following:
a) External trim pieces which do not affect the
operation of the fireplace can be removed,
providing they are stored on or within the
fireplace for re-assembly if the insert is
removed.
b) The chimney damper can be removed to
install the chimney liner.
6) Must not have blocked circulating chambers (if
available).
7) The means for removing the insert to clean the
chimney flue.
8) Have a permanent metal warning label (provided
with the Clydesdale—see following illustration)
attached to the fireplace by riveting it to the
outside wall, stating that the fireplace must be
restored to its original condition for safe use
without the insert.
Clydesdale Fireplace Insert Model 8491
with a minimum
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