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EM SERIES WOODBURNING FIREPLACE
STEP 4 - Assembling Chimney Sections.
Attach either a straight chimney section or an offset
to the top of the fireplace depending on your installa-
tion requirement. Chimney sections are locked
together by pushing downward until the top section
meets the stop bead on the lower section. When
using offsets/returns, the offset and return sections
are recommended to be secured in place with screws
to ensure proper orientation. See Figure 11.
Figure 11
Offset Secured to Fireplace
Figure 12
Connecting Chimney
Sections
STEP 5 - Preparing the Ceiling for Firestop Spacers.
Mark and cut out an opening in the ceiling for the partic-
ular firestop spacer being utilized (14
FS338, 14
1
⁄
" x 18
11
⁄
" for an FS339, or 14
2
1 6
an FS340). Frame the opening with the same dimen-
sion lumber used in the ceiling joists.
STEP 6 - Installing the Firestop Spacers.
Install the firestop spacer FS338 (Straight), FS339 (if a
15° offset located is in the ceiling joist area) or FS340 (if
a 30° offset is located in the ceiling joist area). Nail the
four sides of the firestop spacer to the joists using a
minimum of three (3) nails per side.
4-99
NOTE: The inner flue
is placed to the inside
of the flue section
below it. The outer
casing is placed out-
side the outer casing
of the chimney sec-
tion below it.
See Figure 12.
1
⁄
" x 14
1
⁄
" for an
2
2
1
⁄
" x 22
15
⁄
" for
2
1 6
CAUTION:
INNER FLUE AND OUTER LINER
SECTIONS CANNOT BE DISASSEM-
BLED ONCE LOCKED TOGETHER.
PLAN AHEAD TO INSURE THE
PROPER INSTALLATION HEIGHT IS
ACHIEVED WITH THE SELECTED
CHIMNEY COMPONENTS.
These firestop spacers are designed to provide the
minimum two inch air space required around the
chimney. In all situations, the firestop spacers are to
be nailed to the ceiling joists from the bottom or fire-
place side, EXCEPT when the space above is an
insulated ceiling or attic space. In this situation, the
firestop spacer must be nailed from the top side to
prevent loose insulation from falling into the required
two inch air space around the chimney.
Firestop spacers must be used whenever the chim-
ney penetrates a ceiling/floor area.
Figure 13
Installing the Firestop Spacer
STEP 7 - Installing an AS8 Insulation Shield.
An AS8 insulation shield should be installed when
there is a possibility of insulation coming into contact
with the factory-built chimney system. The AS8 is
installed by positioning it over the vertical chimney
section where it penetrates an FS338 firestop spacer.
The FS338 will support the AS8. See Figure 14
(page 16). When the factory-built chimney penetrates
an insulated ceiling at either 15 or 30 degrees from
vertical, an insulation dam should be constructed from
plywood or sheet metal. A minimum 2" air space
must be provided between the insulation dam and the
factory-built chimney system.
15
31316A
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