9
maintain the 2” clearance to combustibles
from the chimney pipe. A Stabilizer is available
and may be required by some fireplace
manufacturers to keep the chimney vertical
and help maintain clearances to combustibles
within a chase. Clamp the Stabilizer to the pipe
using the nut and bolt provided, and secure
legs to nearby framing using plumber’s tape
or guy-wires (Fig. 8). note: the Stabilizer does
not support the weight of the chimney, it is only
used to keep chimney centered within a chase.
10. Install Attic Insulation Shield: The Attic
Insulation Shield must be installed where the
chimney passes into an attic. Its purpose is
to prevent debris and insulation from getting
too close to the chimney. In attic areas where
this shield cannot fit, or is not used you must
enclose the attic portion of the chimney in
a framed enclosure (always maintain 2”
air-space clearance to combustibles). If the
chimney is fully enclosed through the attic, an
Attic Insulation Shield is not required. Install
the Attic Insulation Shield as follows:
a. remove any insulation or debris from attic
floor around the framed opening.
b. Assemble Chimney Sections until at least 18
inches of chimney extends above the Firestop.
c. Slip the Attic Insulation Shield over the
Chimney until the base sits squarely on the
framed opening (Fig. 9).
d. Secure the Attic Insulation Shield to the
top of the framed opening using at least (2)
8-penny nails or (2) #8, 1-1/2” wood screws
per side (Fig. 10).
Figure 8
Figure 9
Figure 10
PLUMBERS
TAPE
STABILIZER
CHASE
FRAME
FIRESTOP
INSULATION
SHIELD
ATTIC
ATTIC
ATTIC SHIELD
ATTIC
COLLAR
FIRESTOP
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