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12
M400BFC Balanced Flue Heat-Circulating Fireplace
87D1505
Installing the
Chimney System
Start by attaching the first chimney section to the collar
on top of the fireplace.
Install the pipe as pictured in Figure 14. When you
get a good lock, you will hear the pipe clearly snap
together. Once sections are snap-locked in place, it is
extremely difficult to get them apart. Make sure the
pipe is firmly snapped and locked together as each
pipe section is mounted.
When installing elbows, only outer pipe will snap-
lock. Middle pipes simply slide into position. Be sure
to always attach straps on upper elbow to a structural
framing member. (Fig. 15)
Continue installing the pipe as required until pipe is
installed up through the ceiling. At this point, you must
install a firestop spacer.
Installing the Firestop Spacer
in the Ceiling Hole
A firestop spacer is used to keep pipe spaced properly
and required for safety.
Nail the firestop spacer (at each corner) to the framing
members of the ceiling hole. NOTE: A firestop spacer
is not required at the roof.
Hole sizes listed in Figure 11 for angled firestop spac-
ers provide minimum required air space to chimney
pipe for ceiling thickness up to 8” (203 mm). When
combined thickness of ceiling material, ceiling joists
and flooring material exceeds 8” (203 mm), adjustments
must be made in framing to assure that minimum air
spaces to chimney are maintained.
Proper Firestop Spacer Installation
Figure 16 shows different installation procedures for
both an area that is an attic and an area that is not an
attic.
If the area above the ceil-
ing is not an attic, position
the firestop spacer with the
flange on the ceiling side
and the angled portion ex-
tending up into the hole.
If the area above the ceil-
ing is an attic, position the
firestop spacer with the
flange on the top of the
framed hole and the angled
portion extending down into
the hole.
UP
FPC558a
BFC
Pipe install
Circulating models
8/21/00 djt
Pipe Section
Pipe
Rim
Hem
Lance
Pipe
Hem
FPC558a
Fig. 14 Install pipe, listening for the snap-lock to fasten.
FP270/271
CR Series
2/19/99 djt
Support Structure
Ceiling
Hole Fram-
ing
Elbow Strap
(must be tight)
Angled Firestop
Chimney Support Strap
(must be tight)
Elbow Strap
Angled Strap
FP270/271
Fig. 15 Attach straps to a structural framing member.
FP593
SR/C
11/20/97
Nails (4)
Firestop
Spacer
Joist
Firestop
Spacer
Nails (4)
Joist
Attic Installation
Ceiling Installation
FP593
Fig. 16 Installing firestop spacer.
NOTE: If the attic insulation shield is used, the
firestop is not required in the attic installation.