THE CHIMNEY SYSTEM
Chimney Installation Notes
1. If possible, install an interior chimney as it will provide better perfor-
mance. In areas with continuous temperatures below 0°F (-18°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 which are located on lower floors in
the house, such as in a basement, in combination with an outside
chimney, are especially prone to flow reversal.
2. The fireplace model WCT6840WS may be installed only with Security
Chimneys International Ltd 7” diameter chimney systems model
Secure Temp
®
S2100+
*
/ Nova Temp
®
HT6000
*
/ Secure Temp GX
*
(U.S. only) or ACBI
*
.
3. A chimney venting a fireplace shall not vent any other appliance.
4. The minimum chimney height is 12 feet (3.7 m) excluding the fire-
place.
5. All chimney installations must include at least one support in order to
be able to take any lateral load. The maximum chimney length that
can be supported by the fireplace is nine (9) feet (2.75 m) for Secure
Temp
S2100+
*
/ Nova Temp
*
/ Secure Temp
GX
*
and 26 feet
(8m) for ACBI chimney. In altitude, add 18” (450 mm) to the chimney
for every 2,000 feet (600 m) above sea level.
6. The chimney must extend at least three (3) feet (915 mm) above its
point of contact with the roof and at least two (2) feet (610 mm) higher
than any wall, roof or building within ten (10) feet (3 m) of it
(Figure
20)
.
7. If the chimney extends higher than five (5) feet (1,500 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” (51mm) clearance between
the chimney and any combustible materials. At the point of penetration
through the floors, ceilings or roof, a 1” (25mm) clearance is acceptable
for AC chimney
*
only
(see
Table 2)
. Do not fill the required clearance
spaces 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 to the chimney.
11.When offsets are used, the pipe may not penetrate a ceiling or floor
unless it is running vertical (no 30° offsets).
CHIMNEY MODEL
*
SqUARE HOLE
SIZE OPENING
Secure Temp
®
S2100+ Nova Temp
®
Secure Temp
GX
15 in (380 mm)
ACBI: Ceiling, Floor and Roof
(1” clearance *)
15 in (380 mm)
Wall
17 in (432 mm)
NOTE: See Table 3 for Sloped Roof Framing
Table 2 - Flat Roof Framing
* The following exception has been approved for this appliance; The required 2”
pipe clearance may be reduced to a 1” clearance at the ceiling, floor and roof
penetration points for AC chimney
*
only. All other locations require 2” clearance.
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 INSTALLATION INSTRUCTIONS
1. Cut and frame the holes in the ceiling, floor and roof where the chimney
will pass (see
Figure 21).
Use a plumb-bob to line up the center of
the holes. The sizes are indicated in
Table 2
for the floor and ceiling
holes and
Table 3 (Page 16)
for the roof holes.
Figure 20
two (2) feet Min.
three (3) feet Min.
ten (10) feet
*
Available from Security Chimneys™
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
14
