Page 32
7044-140C
November 21, 2011
R
3100-I ACC Wood Insert
8
Chimney Systems
D. Masonry Chimney
• Must meet minimum standards of NFPA 211.
• Must have at least 5/8 inch (16mm) fi reclay lining joined
with refractory cement. (Installations into a clay fl ue
without a stainless steel liner may reduce draw which affects
performance, will cause the glass to darken and produce
excessive creosote).
•
The masonry wall of the chimney, if brick or modular
block, must be a minimum of 4 inches (102mm) nominal
thickness.
•
A chimney of rubble stone must be at least 12 inches
(305mm) thick.
• Cross-sectional area shall conform to NFPA 211-2006
Section 12.4.5.1.
• Should be lined with a 6 inch (152mm) stainless steel fl ue
liner to improve performance and reduce creosote build-
up.
•
An equivalent liner must be a listed chimney liner system
or other approved material.
• No dilution air is allowed to enter the chimney.
1.
Secure the fi replace 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 fi replace.
3. Both methods must be removable and replaceable for
cleaning and re-installation.
• When possible, install an airtight clean-out door to the rear
of the smoke shelf.
A. Venting Systems
Chimney Connector:
It is also known as fl ue pipe or stove pipe. It must be
6 inches (152mm) minimum diameter stainless steel
connector pipe
and must be installed meeting type HT
(2100°F) requirements per UL 1777 (USA) or ULC S635
.
Chimney
:
The chimney can be new or existing, masonry or
prefabricated and must meet the following minimum
requirements as specifi ed below.
WARNING! Risk of Fire!
Follow venting manufacturer’s clearances and
instructions when installing venting system.
B. Inspections
Existing chimneys should be inspected and cleaned by a
qualifi ed professional prior to installation. The chimney
must not have cracks, loose mortar or other signs of dete-
rioration and blockage. Hearth & Home recommends a
NFI or CSIA certifi ed professional or a technician, under
the direction of a certifi ed professional, conduct a Level II
inspection per NFPA 211.
Fire Risk
Inspection of Chimney:
• Chimney must be in good condition.
• Meets minimum standard of NFPA 211
• Factory-built chimney must be 6 inch
(152mm) UL103 HT.
WARNING
NOTICE:
Check with your local building authorities
and/or consult the National Fire Protection Association
(NFPA 211).
C. Larger Chimneys
It is recommended that chimneys with larger diameters
than 6 inches (152mm) be relined. An oversized fl ue
can affect draft and impair performance and will allow
increased build-up of creosote.
NOTE:
In Canada, this fi replace insert must be installed
with a continuous chimney liner of a 6 inch (152mm) diam-
eter extending from the fi replace insert to the the top of the
chimney. The chimney liner must conform to the Class 3
requirements of CAN/ULC-S635, Standard for Lining Sys-
tems for Existing Masonry or Factory-Built Chimneys and
Vents, or CAN/ULC-S640, Standard for Lining Systems
for New Masonry Chimneys.
NOTE: This wood unit must be connected to a
code-approved masonry chimney with fl ue liner.
•
In Canada a full length 6 inch (152mm) S635 fl ue
liner required as per ULC S628.
•
In USA a minimum 5 ft length (1.82m), 6 inch
(152mm) diameter fl ue liner is required as per UL
1482.
NOTE