OPEL 2000
14
1. Sight-in and mark the outline of where the factory-
built chimney will penetrate the masonry chimney.
2. Using a large (3/4" - 2") masonry drill bit, drill a hole
exactly in the center of the oval outline. With a masonry
hammer and drill, slowly enlarge the hole to the size
required. Remember to work from the center out. Be
especially careful with the clay liner behind the brick
because three sides of it
must
stay in place.
3. Bring the stainless steel liner down from the top of
the chimney. If you are using a rigid liner you will need
enough room to secure an elbow to it with at least two
screws. For chimneys with less than 10" X 10" inside
you may find it easier to install a flex liner and secure
the end with a special adapter (part #LAF) available from
your dealer.
4. Move the fireplace forward enough to install the length
of EXCEL chimney then move the fireplace back into
position as you connect the masonry adaptor to the
EXCEL chimney.
CHASE ENCLOSURE
If the chimney runs up the outside of the house, it must
be enclosed in a chase structure. It is best to locate the
chase away from any overhead obstructions and meet
all clearances from such objects. The chase should be
constructed in such a way that it is an extension of the
home. It should be well insulated between the footings
and the floor of the home to prevent heat loss. If the
climate in your area is mild, insulate the chase at least
to the first fire-stop. If the climate
in your area is very cold, insu-
late the chase to the top to keep
the flue warmer, to increase the
draft, and reduce creosote
buildup.
NOTE: In USA if the chase is
enclosed or flashed to the roof
as shown in Figure 9, then the
flashing must be vented.
If required by local codes, make
certain that the walls have been
properly insulated, vapor sealed
and sheathed with a fire rated
gypsum board (see figure 9).
REMEMBER:
Check local
codes concerning installation
requirements and restrictions in
your area.
RADIATION SHIELD
A radiation shield must be placed where the chimney
passes through each floor level overhead. This will as-
sist in retarding any spread of fire and act to contain the
fire within the area below the fire-stop.
Figure 8: Offset chimney installation
storm collar
radiation
shield
radiation
shield
3 metal
screws in
each joint
offset
rise
use offset
support
Excel liner listed ULC-S635,
ULC-S640 and UL1777
clearance as per NBCC 9.21.5
or NFPA 211
masonry adaptor
(FD-M)
12 min. to
combustible
ceiling
Figure 7: Connection to masonry chimney
metal
firestop
Excel elbow
No combusti-
ble material in
this area
Excel 7 chim-
ney 18 min.
length
Summary of Contents for OPEL 2000
Page 40: ...OPEL 2000 40 ...
