SB38 / SB44 Series Woodburning Fireplace
4
87D0057
chimNey cap iNStallatioN
chimNey cap
Special Note:
The proper height as previously explained
is important to assure proper draft and safety. The chimney
cap extends the flue outlet four inches above the top of the
last section of chimney. This should be kept in mind when
determining the proper height for the chimney. The chimney
should not be extended more than 90 inches above the
supporting roof structure without additional support. In the
case of an “A” frame type construction or other steep pitch
roofs that require more than 90 inches of chimney above
the roof, a support should be attached to the chimney at the
90 inch level that is strong enough to support a wind load
of 3
Z\,
pounds for each inch the chimney extends above
90 inches. The flue outlet must be a minimum of three feet
above the point where in penetrates the roof.
cautioN:
Be careful to avoid electrical shock hazard when
contacting wires to the metal chimney components.
1. Extend the regular chimney sections until the top of the
chimney is 4 inches below the total flue height desired.
Do not snap the last section of inlet air duct or largest
diameter pipe in place until Step 3 is completed.
. Remove the shingles from around the chimney so that
the flashing may be installed, with the upper part of the
flashing under the shingles.
3. Set the flashing on the roof. Hold a section of the outside
pipe (13
C\,
” diameter) on the flashing and scribe a line
around the flashing, then cut the top off the flashing
by cutting 1/4 inch below the scribed line. This should
increase the diameter of the flashing outlet sufficiently
to allow the flashing to be placed over the chimney.
Figure 29
4. Snap the last section of inlet air duct in place and slide
the flashing over the chimney. Adjust the chimney
to assure that the proper minimum clearances are
maintained.
5. Nail the flashing securely in place with eight nails.
6. Seal the crack between the top of the flashing and the
chimney with mastic. Leave some excess mastic at this
area to be used in step eight.
Note:
Use pliers and
wear gloves when performing step seven to minimize
the danger of cutting your hands on the edge of the
storm collar.
7. Place the storm collar around the chimney and put the
collar together like a belt in belt loops. Slide the end
of collar under the two loops on the other end with the
loops facing up. Overlap the ends of the collar until it is
tight against the chimney. Bend the free end of the collar
back over the loops to hold the storm collar securely
together. The excess end of the storm collar may be
trimmed off.
8. Slide the storm collar down snugly against the flashing
until the excess mastic left in step six is forced up into
the crack between the storm collar and the chimney.
This should make the joint between the flashing and
the chimney watertight.
9. Install the chimney cap by placing the cap into matching
parts of the last chimney section. Then punch or drill 1/8
inch diameter holes in the inlet air duct (chimney pipe)
where specified on the brackets and fasten it down with
the No. 8 screws provided. Do not penetrate the inner
stainless steel pipe while installing the screws.
10.Check all the parts of the fireplace, chimney and
chimney termination cap to assure that no parts have
been damaged or bent during installation and that all
parts have been installed properly.
Note:
The metal used for the chimney cap has a rust
protective coating but the cut edges of the parts are not
protected. To prevent rusting and rust staining of nearby
structures, exposed parts of the chimney and chimney cap
should be detergent washed and painted with a galvanized
primer paint.
