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STEP 11. INSTALLING FLASHING
Place the flashing over the chimney pipe where it
penetrates the roof and mark the outline of the flashing on
the roof. Remove t h e nails from the shingles inside this
outline and to the bottom edge of the roof cutout. Coat the
roof area under the shingles with roofing cement. Slide the
flashing under the shingles on the sides of the flashing and
re-nail the top and side shingles. DO NOT nail through the
lower portion of the flashing. If necessary, cover the side
and top of the flashing with the salvaged shingles. The
flashing should cover the lower side of the roof opening as
pictured in figure 19.
STEP 12. INSTALLING THE STORM COLLAR
The storm collar is assembled to the chimney system next.
Holding the adjustable storm collar with the tab of the collar
in your right hand, put the collar around the flue pipe. Push
the tab on the collar through the slot provided. Pull the tab
through and bend it just enough so that the collar may be
raised upward.
Apply waterproof caulking around the flashing where the
collar fits around the top of the flashing. Push the storm
collar down securely on the sealer and flashing. To secure
the collar, pull the tab through the slot as far as possible
and bend the tab over to hold it in place.
STEP 13. INSTALLING THE TERMINATION CAP
A chimney termination is required to finish the installation.
The following instructions are for the 82O3D termination.
Refer to the instructions packed with the termination for
Figure 19
Installing
flashing and
storm collar
additional information.
CHASE INSTALLATIONS
1. A chase is an enclosure for the fireplace and/or chimney
that is attached to the outside of the house. It may start
at the basement floor line, at the first level or at some
point on the side of the wall. A chase may also be used
to enclose a chimney from the point where it penetrates
the roof, to slightly below the termination cap.
2. The floor under the fireplace must be a solid, continuous
level surface. Many local building codes also require a
firestop spacer in the chase at the ceiling level in the
house. Consult your local building codes to determine
the requirements for chase installations in your area.
Remember that all chimney components must have an
absolute minimum of 1" air space from combustible
materials.
Plan
the
accordingly.
3. A chase should be constructed and insulated like any
other exterior wall in your home.
dimensions
of
your
chase
4. A metal cover made by a local sheet metal shop is
required to complete a chase installation. This cover
becomes a flashing that prevents water from entering the
chase. The chase cover should be sealed at the corners.
A minimum 1" high collar is required at the point where
the chimney pipe or slip section will penetrate the chase
cover. It requires 12 5/8" diameter collar. The seam at
the base of the collar must be watertight. It may be
necessary to support the chase cover with framing
members if the cover is large or has multiple caps.
Required clearance to combustibles must be maintained.
Spacers (¼" high) should be used to space the chase
cover above the wood framing to minimize conduction of
heat to the wood.
5. These fireplaces may be installed in a chase using Model
8203D termination cap. All sections of the chimney
must extend 6" above the chase cover when the
8203D termination Is used. Install the storm collar over
the 1" collar on the chase cover and caulk between storm
collar and pipe. The termination is installed to the
chimney pipe above the chase cover as described in
figure 20.
6. If a flush mount is desired, model STD-22 Round Chase
Cap, ARC-52 Architectural Cap, PRC-12 or LPC-12
Pyramid Caps, or TC~12 Conical Cap may be used.
When used, the last chimney section must be no more
than 12" below the chase cover collar. All slip sections
require a minimum 3" lap into the last chimney section.
Refer to separate installation instructions for each
termination for details.
7. It is recommended, but not required, that you insulate
underneath the fireplace and between the studs on the
outside wall of the chase to reduce heat loss in cold
climates. Be sure to use non-combustible insulation
without paper or plastic backing. Never use blown-in
type insulation in a chase. Insulation should never
cover the top or sides of the fireplace or any part of
the chimney system. To further reduce heat loss, it is
recommended that 1/2" gypsum wallboard be installed
over the insulation on the inside of the chase. Plan chase
dimensions accordingly.
8. Chases with two or more chimneys should be
constructed wide enough to allow chimneys to be spaced
at least 24" on center from each other. When chimneys
are closer than this, smoke from one may be drawn
down the flue of the adjacent chimney. When chimneys
must be installed closer than this smoke transfer may be
prevented by vertically offsetting adjacent terminations
by 12" to 18" or by installing 12" to 18" high sheet metal
shields between terminations.
WARNING: DO NOT PACK REQUIRED AIR SPACES
12
WITH INSULATION OR OTHER MATERIALS.
Figure 20
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