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B36LA8 & B36RA8 Woodburning Fireplaces
CHASE INSTALLATION
A chase is a vertical box-like structure which encloses
the fireplace and/or chimney. Chases are typically built
on the outside of the house with fireplace opening cut
into the outer wall of a room. (Page 5, Fig. 4)
If you need help in determining fireplace location or how
the chimney system should be run, contact your MHSC
dealer for assistance.
Chimney Sup-
port Strap
SKCS8
Figure 8 -
Chimney support installation
18
FP284
IWF284
MBUF
5/25/96
FIREPLACE INSTALLATION
INSULATING FIREPLACE ENCLOSURE FOR
COLD CLIMATES
If you live in a cold climate, it is not required but highly
recommended that you insulate fireplace enclosure to
eliminate cold air penetration as much as possible.
Insulate base of fireplace with a non-combustible insula-
tion rated for a minimum of 300°F. Insulating is very
important for outside wall installations over a concrete
slab. If fireplace is installed on a platform, insulation
should be placed on top of the platform before fireplace
is set. (Fig. 9)
When a fireplace is installed in a chase or on a outside
wall, enclosure should be treated like any outside wall
in a home. Insulation should be installed on the inside
wall as well as the outside wall(s). In a chase, it is also
a good idea to install a firestop at the first ceiling level
above the fireplace and enclose the chase with sheeting
material. Insulation may then be installed above sheet-
ing material to assure the space around the fireplace is
totally protected. (Fig. 4)
When installing the chimney, DO NOT caulk between
outer pipe and firestop. It is vital that some air be al-
lowed to flow through this very thin gap.
CAUTION: WHEN INSTALLING A FIREPLACE IN AN
INSULATED ENCLOSURE, BE SURE ALL REQUIRED
AIR SPACES ARE MAINTAINED. (Page 14, Fig. 20)
CHIMNEY SET-UP
Since you have already preplanned the chimney run,
you should know exactly how the installation is to be ac-
complished — how much pipe is required, the number of
elbows, if any, and type of termination to be used.
CAUTION: REPORT TO YOUR DEALERS ANY PARTS
DAMAGED IN SHIPMENT, SPECIFICALLY CHECK
THE END CONNECTION OF CHIMNEY SECTIONS
AND ELBOWS.
NOTE: The B36RA8 and B36LA8 models use MHSC
SK8 (2-wall) chimney systems.
STRAIGHT-UP CHIMNEY INSTALLATION
To locate the centerline of the flue put the fireplace in
final position and place a plumb bob from the ceiling to
the center of the fireplace flue collar. Mark this spot on
the ceiling. Draw a line through that mark to either side
of the firebox and indicate dimension X to locate the
side wall framing. (Fig. 10) Be sure to observe clearance
requirements for side and parallel combustible walls as
noted in Page 16, Figure 23.
CHIMNEY INSTALLATION
87D0176
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