Instruction

9
dropping a plumb bob to the four corners of the
opening below. Maintain the minimum 2-inch
clearance/air-space.
6. Cut Roof Opening: If penetrating through
the roof, determine and cut an opening in the
roof directly above the opening below. The
cut opening must be at least 4-inches larger
than the chimney’s outside diameter and the
chimney must be centered within this opening
and maintain the minimum 2-inch clearance to
combustibles.
7. Install Firestop: A Firestop is required on
each oor penetration in multistory installations.
Building Codes require a Firestop at every
oor/ceiling level, including where the chimney
penetrates into the attic. Figure 4 shows a
typical 2-story installation with an attic. Note:
a Firestop is not installed where the chimney
penetrates through the roof. The Firestop is
installed on the underside of the ceiling/oor
framing (Fig. 5). Use a minimum of either one
(1) 8-penny nail or one (1) #8, 1-1/4” wood
screws per corner.
8. Assemble Chimney Sections: Chimney
sections are connected by lowering the female
end of a Chimney Section onto the male end
of a previous section of chimney. For 10"-16"
chimney pipe diameters, sheet metal screws
are required to connect Chimney Section
together. For each additional Chimney Section
use four (4) Sheet metal screws provided
to make a secure connection between the
chimney sections (Fig. 6). For 8" chimney
diameter, lower the female end of a Chimney
Section onto the male end of a previous
section of chimney. Turn top pipe section
clockwise rmly to lock them together. Sheet
metal screws may be used to reinforce the
connection, however they are not normally
required. Screws are only acceptable in the
outer liner. Do not penetrate the inner liner of
the chimney. Use a Wall Strap every eight feet
of chimney height.
FRAMING
Figure 5
Figure 6
Figure 7
SECURE BRACKET TO FRAME
SUPPORT UP TO
25 FEET OF CHIMNEY
MAINTAIN 2" CLEARANCE
EACH SUPPLEMENTARYINSTALL SUPP. SUPPORT
IF HEIGHT EXCEEDS 50’
OR IF REQUIRED BY THE
FIREPLACE MANUFACTURE
FROM CHIMNEY TO FRAMING