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18
February 19, 2020
7037-801B
NOTE: In Canada
, when using a factory-built chimney it
must be safety listed,
Type UL103 HT (2100°F)
CLASS “A”
or conforming to
CAN/ULC-
S629M, STANDARD FOR 650°C FACTORY-
BUILT CHIMNEYS.
Floor
Protector
Chimney
Connector
Insulated " T "
Flashing
Listed Termination Cap
Trim Collar on
Inside Wall
Listed Chimney
Storm Collar
Wall Support
Roof Brace (if required)
Thimble
Figure 18.1 - Prefabricated Exterior Chimney
E. Venting Components
Chimney Connector:
It is also known as flue pipe or appliance pipe. The chimney
connector joins the appliance to the chimney. It must be
a 6 inch (152mm) minimum diameter 24 gauge mild steel
black or 26 gauge blued steel, or an approved air-insulated
double wall venting pipe.
Thimble:
A manufactured or site-constructed device installed in
combustible walls through which the chimney connector
passes to the chimney. It is intended to keep the walls from
igniting. Site constructed thimbles must meet
NFPA 211
Standards
. Prefabricated must be suitable for use with
selected chimney and meet
UL103 Type HT Standards
.
Follow instructions provided by the manufacturer for
manufactured thimbles for masonry chimney and
prefabricated chimneys.
F. Chimney Systems
Prefabricated Metal Chimney
•
Must be minimum 6 inch (152mm) diameter (ID) high
temperature chimney listed to
UL 103 HT (2100°F) or
ULC S629M
.
•
Must use components required by the manufacturer
for installation.
•
Must maintain clearances required by the manufacturer
for installation.
• Refer to manufacturers instructions for installation.
D. Chimney Height / Rise and Run
This product was designed for and tested on a 6 inch
(152mm) chimney, 14 to 16 feet (420-480cm) high,
(includes appliance height) measured from the base of the
appliance. The further your stack height or diameter varies
from this configuration, the greater the likelihood it may
affect performance.
Chimney height may need to be increased by 2 - 3% per
each 1000 feet above sea level. It is not recommended
to use offsets or elbows at altitudes above 4000 feet
above sea level or when there are other factors that affect
flue draft.
Chimney:
The chimney can be new or existing, masonry or
prefabricated and must meet the following minimum
requirements and as specified in Section 4 -
Chimney Systems.
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
WARNING
Asphyxiation Risk.
• DO NOT CONNECT THIS Appliance
TO A CHIMNEY FLUE SERVICING
ANOTHER APPLIANCE.
• DO NOT CONNECT TO ANY AIR
DISTRIBUTION DUCT OR SYSTEM.
May allow flue gases to enter the house.
Improper installation, adjustment, alteration, service
or maintenance can cause injury or property damage.
Refer to the owner’s information manual provided with
this appliance. For assistance or additional information
consult a qualified installer, service agency or
your dealer.
WARNING