7039-174K
13
August 13, 2018
Discovery I
NOTE: I
n Canada when using a factory-built chimney it
must be safety listed,
Type UL103 HT (2100oF)
CLASS “A”
or conforming to
CAN/ULC-S629M,
STANDARD FOR 650oC 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 13.1 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
o
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 4F.
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
