4100-I ACT Wood Insert
Page 10
April 19, 2010
R
250-7201F
The chimney can be new or existing, masonry or prefabricated
and must meet the following minimum requirements:
• Must be minimum 6 inch (152mm) inside diameter of
high temperature chimney listed to UL 10 HT (2100
o
F)
or ULC S628.
• Must use components required by the manufacturer for
installation.
• Must maintain clearances required by the manufacturer
for installation.
• Refer to manufacturers instructions for installation
•This insert is listed to UL 1482 Standard and is approved
for installation into listed factory-built zero
clearance
fireplaces listed to UL 127 conforming to the following
specifications and instructions:
•The original factory-built clearance fireplace chimney
cap must be re-installed after installing the approved
chimney liner meeting type UL 10 HT requirements
(2100°F) per UL 1777.
•If the chimney is not listed as meeting HT requirements,
or if the factory built fireplace was tested prior to 1998, a
full height listed chimney liner must be installed from the
appliance flue collar to the chimney top.
•The liner must be securely attached to the insert flue collar
and the chimney top.
•The air flow of the factory-built zero-clearance fireplace
system must not be altered. The flue liner top support
attachment must not reduce the air flow for the existing
air-cooled chimney system.
•No dilution air is allowed to enter the chimney.
1. Secure the fireplace damper in the open position. If
this cannot be accomplished, it will be necessary to
remove the damper
2. Seal damper area of chimney around chimney
connector with a high temperature sealant or seal
insert against the face of the fireplace.
. Both methods must be removable and replaceable
for cleaning and re-installation.
Prefabricated Metal Chimney (Cont’d)
Minimum 8” (203mm) Masonry Thickness
in Front of Smoke Chamber
Damper Plate Removed or
Fastened in Open Position
Seal with Non-
Combustible Material
Minimum Clearance in Accordance with
Insert Listing
Floor Protection in
Accordance with Insert
Listing
Combustible Floor
Airtight Insulated Clean-Out
Stainless Steel Chimney Connector
Must Extend to Flue Liner
Flue Liner with Required Air Space
Figure 10.1
This insert conforms with the safety standard UL 1482 and
ULC S628 (Canada) in all respects and is approved to UL &
ULC safety standards for installation and use within a fire-
place with masonry chimney, in accordance with NFPA 211,
with a direct flue collar connection.
Metal Heat Circulating Masonry
Prefabricated Metal Chimney
