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16 USSC
DESIGN GUIDELINES FOR 6041I INSERT INSTALLATION
INSTALLATION INTO A MASONRY FIREPLACE
When installing into a masonry replace, DO NOT
remove any bricks or masonry, with the following
exception: masonry or steel, including the damper
plate, may be removed from the smoke shelf and
adjacent damper frame, if necessary, to accommo-
date a chimney liner. Do this only if their removal
will not weaken the structure of the replace or
the chimney, and will not reduce protection for
combustibles to less than that required by national
building codes.
Installation must include a chimney liner (4” Pell
Vent “PL” Piping) that extends the full height of the
chimney and meets type HT requirements. The
liner must be securely attached to the insert and
the chimney top. The chimney must be sealed
either at the top or at the damper area with a non-
combustible plate to prevent room air passage to
chimney cavity.
Outside combustion air may be drawn through the
chimney top or through an existing ash cleanout.
INSTALLATION INTO A FACTORY-BUILT
(METAL) FIREPLACE
When installing into a zero clearance replace, The
rebox must accept the insert without modication
other than removing bolted or screwed together
pieces such as smoke shelf/deectors, ash lips,
screen or door tracks, and damper assemblies.
These items must be re-installed if the insert is
removed and not replaced. The removal of any
part must not alter the integrity of the listed re-
place in any way.
The factory built replace must be listed per UL
127. Installation must include a chimney liner (4”
Pell Vent “PL” Piping) that extends the full height
of the chimney and meets type HT requirements.
The liner must be securely attached to the insert
and the chimney top. The chimney must be sealed
either at the top or at the damper area with a non-
combustible plate to prevent room air passage to
chimney cavity.
For raised hearth installations, adjust the leveling
bolts under the front of the unit.
4” VENT IS MANDA-
TORY FOR INSERT
INSTALLATIONS.
4” VENT IS MANDA-
TORY FOR INSERT
INSTALLATIONS.