15
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
CHIMNEY SYSTEM
GENERAL INFORMATION
The HE43-2 fireplace is listed only with Security Chimneys™ International
Ltd. chimney systems, models ASHT+ 8", S-2100+ 8", or AC 8".
Do not
connect the fireplace to a masonry chimney, chimney liner, or other
brand of factory-built chimney.
The Oliver Macleod chimney models HT6103 and HT6000 are respec-
tively equivalent to Security Chimneys International ltd. Chimney
models ASHT and S2100.
In areas with continuous temperatures below 0º F (-18º C), the use of
an exterior chimney increases the likelihood of operating problems such
as low draft, high rate of creosoting and poor start up characteristics.
Exterior chimneys are also prone to down-drafting and flow reversal.
Installations located in a basement, in combination with outside chimneys,
are especially prone to flow reversal. In cold areas, air cooled chimneys
should not be used in an exterior installation.
Caution: AC chimney should not be used in very cold areas, where
temperatures are likely to fall below 0° F (-18° C), or altitudes above
4000 feet.
A chimney venting a fireplace shall not vent any other appliance.
The minimum system heights are indicated in
Table 2
.
In altitude, add 18" (450mm) to the chimney for every 2000 feet (600
m) above sea level.
All chimney installations must include at least one support. The maximum
length of chimney that can be supported by the fireplace is 12 feet (3.6 m)
for S-2100+, 18 feet (5.4 m) for ASHT+ and 26 feet (8 m) for AC chimney.
The chimney must extend at least 3 feet (915mm) above its point of
contact with the roof and at least 2 feet (610mm) higher than any wall,
roof or building within 10 feet (3 m) of it (see
Figure 18
).
If the chimney extends higher than 5 feet (1500mm) above its point
of contact with the roof, it must be secured using a roof brace or
guide wires.
A rain cap must be installed on top of the chimney. Failure to install a
rain cap may cause the fireplace to corrode and operate inefficiently.
Cut and frame square holes in all floors and the roof to provide a 2" (50mm)
clearance between the chimney and any combustible materials. Do not
fill this 2" (50mm) space with any material (see
Figure 19
).
Portions of the chimney which may extend through accessible spaces
must be enclosed to avoid contact with combustible materials or dam-
age the chimney.
Note:
2" clearance to combustibles around chimney components required.
Note:
Blown or fill type insulation materials must not be in contact with the
fireplace or in the enclosure frame as described in ‘’Enclosure’’ section.
Note:
Local codes may not require firestopping at the ceiling levels for
outside chase installations. However, it is recommended for safety and
the reduction of heat loss.
Chimney Height
The total height of your completed fireplace system from the surface the
fireplace rests on to the chimney top must not exceed 60'. Chimney height
must also meet minimum height requirements, excluding the fireplace
height, indicated in
Table 2
. Refer to the minimum system height chart.
In altitude, add 18" (450 mm) to the chimney for every 2000 feet (600
m) above sea level.
Minimum System Heights
Fireplace Model
HE43-2
Chimney Model
ASHT+ / S-2100+ / AC
Vertical Installation
12 feet (3.66 m)
One Offset (2 elbows)
15 feet (4.57 m)
Two Offsets (4 elbows)
17 feet (5.18 m)
Table 2
Figure 17
Ten (10) Feet
3.1 Meters
Three (3) Feet
.6 Meters
Minimum
Two (2) Feet
.6 Meters
Minimum
