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chimNey iNStallatioN
Figure 20
Note: Flue outlet should be two feet above all portions of the building
within ten feet as shown in Figure 20. The chimney must not extend
more than 90 inches above the roof without additional support.
1. Lay out, cut and frame openings through all ceilings
and the roof at the point where the chimney will pass
through. Unless the chimney is to be offset, the point
where the center line of the chimney will pass through
the ceiling and roof can be determined with a plumb
line as shown by Figure 21. The fireplace should be
located in the planned installation position. After the
center line is established and a nail is driven to mark
the point, the opening can be cut if you are satisfied
with the chimney location relative to ceiling and roof
joists and/or any other obstructions. The roof opening
center line should be marked by driving a nail through
the roof from underneath that will penetrate the roof
and can be located from the rooftop. If the chimney is
to penetrate a pitched roof, the hole in the roof must
be rectangular instead of square and should be sized
according to Table1.
. Install the firestop spacer as required from beneath the
ceiling unless the space above is attic space. In an attic,
the firestop spacer should be installed at the floor level
of the attic. You must have joists or headers on all four
sides of the spacer and use a minimum of four 8-penny
nails to secure the spacer.
87D0057
10'
2' Min.
3'
Min.
2' Min.
AC617
RLTSKC8
3. To install the chimney sections, insert the male end of
2/11/98
the flue, the smallest diameter pipe, into the flue outlet
of the fireplace and press down until the snap locks
engage. Continue the process, adding the chimney
sections on top of each other until the chimney is at
least six inches above the roof opening on all sided. As
the chimney sections are installed, check each joint to
make sure it is properly locked to the previous section.
If additional strength of the outer pipe joints is desired,
you may use two or three sheet metal screws placed
through the area where the outer pipes overlap one
another. To install these screws, drill a 1/8-inch diam-
eter hole through the chimney sections, taking care not
to penetrate the inner flue pipe. warNiNg: Be very
careful when drilling the holes into the outer pipe. The
drill must not penetrate the inner stainless steel pipe.
Note: If you intend to have a total fireplace installation
of more that 30 feet you must use chimney support model
11CS at or below 30 feet to support the weight of additional
chimney pipe.
To install the chimney support, place the crimped end of
the flue and outlet air duct portions into the last section
of chimney pipe. Push down until the outside or inlet air
duct of the chimney support overlaps and snap locks the
chimney support into the chimney section.
Nail the support straps tightly to a building frame member
or ceiling joist as shown by Figure 20. You must use at
least two 8-penny nails per strap.
SB38 / SB44 Series Woodburning Fireplace
10'
3'
Min.
AC617
19
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