53D9025
19
CHIMNEY CAP INSTALLATION
Model LC 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 chim-
ney. 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 3-1/8 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.
2. Remove the shingles from around the chimney so that the flashing may be installed, with the up-
per part of the flashing under the shingles.
3. Set the flashing on the roof. Hold a section of the outside pipe (13” 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 flash-
ing to be placed over the chimney. See Figure 19.
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.
