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Minimum Fireplace Dimensions
3.
Move the fireplace insert into position in your
4.
fireplace. Do not drag the fireplace insert as
this may damage the fireplace hearth or the
fireplace insert base.
Connect the flue pipe liner from the chimney to
5.
the fireplace insert flue collar.
Push the fireplace insert into final position with
6.
the surround against the fireplace.
Masonry Fireplace Requirements
The entire fireplace and chimney must be cleaned and inspected before installation. The system must
7.
meet local building code requirements.
The structure and components must be free of any defects such as cracks or broken bricks or flue tiles.
8.
Any damage must be repaired before installation. Any opening that may exist between the masonry of
the fireplace and the facing masonry must be permanently sealed.
The chimney must have a clay tile liner or a stainless steel liner utilizing a positive connection.
9.
DO NOT REMOVE BRICKS OR MORTAR FROM THE FIREPLACE OR CHIMNEY STRUCTURE. How-
10.
ever, masonry or steel may be removed from the smoke shelf and adjacent damper frame area to
accommodate installation of a chimney liner, provided that their removal will not weaken the structure of
the fireplace or chimney, and will not reduce protection for combustible materials.
Factory-Built Fireplace Requirements
The HF-577IU3 or HF-577IU7 may be installed into a factory-built fireplace with the following conditions:
• The factory-built fireplace must be listed per UL 127 or ULC S610.
• Installation must include a full height listed chimney liner meeting type HT requirements (2100F) per UL
1777 (U.S.) or ULC S635 (CAN). The liner must be securely attached to the insert flue collar and the
chimney top.
• The damper or fireplace front must be sealed to prevent passage of room air into the the chimney cavity.
• Circulating air chambers (i.e. in a steel fireplace liner or metal heat circulator) may not be blocked.
• Air flow within and around the fireplace shall not be altered by installation of the insert. The C 450 Surround
Panels comply with this requirement.
• Alteration of the fireplace is limited to a) removal of the damper for liner installation & b) removal of
external, non-functional trim which must be stored within the fireplace for replacement.
• Fireplace Conversion Notice must be permanently attached to the back of the fireplace. This metal label is
included in the bag containing this manual.
• Final approval is contingent on the authority having local jurisdiction.
Existing fireplace dampers shall remain locked in the open position.
5
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