*
Available from Security Chimneys™
DRAFT REQUIREMENTS
Draft is the force which moves air from the appliance up through the
chimney. The amount of draft in your chimney depends on the length of
the chimney, local geography, nearby obstructions and other factors. Too
much draft may cause excessive temperatures in the appliance and may
damage the catalytic combustor. Inadequate draft may cause backpuffing
into the room and `plugging’ of the chimney or the catalyst.
Inadequate draft will cause the appliance to leak smoke into the room
through appliance and chimney connector joints.
An uncontrollable burn or excessive temperature indicates excessive draft.
THE CHIMNEY SYSTEM
Chimney Installation Notes
1. This appliance is equipped with a universal vent collar that will require
the first vent section of pipe to be secured with four screws to the
collar (equally spaced around circumference).
2. 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.
3. The fireplace model WCT6940WS 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) / ACBI.
4. A chimney venting a fireplace shall not vent any other appliance.
5. The minimum chimney height is 12 feet (3.7 m) excluding the fireplace.
6. 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
*
(air cooled) chimney. In altitude, add 18” (450
mm) to the chimney for every 2,000 feet (600 m) above sea level.
7. 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 26
).
8. 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.
9. A rain cap must be installed on top of the chimney. Failure to install
a rain cap may cause corrosion problems.
10. 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 penetra-
tion 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.
11. Portions of the chimney which may extend through accessible spaces
must be enclosed to avoid contact with combustible materials or
damage to the chimney.
12. 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 27
). 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 18
) for the roof holes.
Figure 26
two (2) feet Min.
three (3) feet Min.
ten (10) feet
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
19
