24
THE CHIMNEY
CHIMNEY INSTALLATION NOTES
1.
If possible, install an interior chimney as it will provide better performance. In areas with continuous
temperatures below. 18° C (0° F), the use of an exterior chimney increases the likelihood of operating problems
such as low draught, high rate of creosoting, and poor startup characteristics. Exterior chimneys are also prone
to downdrafting and flow reversal. Installations, which are located on lower floors in the house, such as in a
basement, in combination with outside chimney, are especially prone to flow reversal.
2.
The Security fireplace model BIS ULTRA is listed only with Security Chimneys International Ltd 6" dia.
chimney systems.
3.
A chimney venting a fireplace shall not vent any other appliance.
4.
The minimum chimney height, is 12 ft. (3.7 m).
5.
All chimney installations must include at least one support . The maximum chimney length that can be
supported by the fireplace is 9 ft. ( 2.75 m) for S2100+/ , 12 ft. (3.7 m) for ASHT+ / and 26
ft. (8m) for AC chimney. In altitude, add 18".(450 mm) to the chimney for every 2000 feet (600 m) above sea
level.
Note: In areas where winter temperatures are normally below freezing, the air cooled
chimney may produce condensation. This condensation may corrode the top of the fireplaces
and is not covered under warranty. For optimum performance of your fireplace, Security
Chimneys International recommends the use of an ASHT+ / or S2100+ /
chimneys.
6.
The chimney must extend at least 3 ft. (915 mm) above its point of contact with the roof and at least 2 ft. (610
mm), higher than any wall, roof or building within 10 ft. (3m) of it (Figure 24).
7.
If the chimney extends higher than 5 ft.
(1500 mm) above its point of contact with
the roof, it must be secured using a roof
brace.
8.
A rain cap must be installed on top of the
chimney. Failure to install a rain cap may
cause corrosion problems.
9.
Cut and frame square holes in all floors,
ceilings, and roof that the chimney will go
through to provide a 2" (50 mm) clearance
between the chimney and any combustible
materials. Do not fill this 2" space with
insulation or any other combustible material.
10.
Portions of the chimney which may extend through
accessible spaces must be enclosed to avoid contact
with combustible materials or damage the chimney.
Figure 24
