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Majestic Fireplaces® SR/SC Series
■ 1. Insulating Fireplace Enclosure
For Cold Climates
If you live in a cold climate, it is not required but
highly recommended that you insulate fire-
place enclosure to eliminate cold air penetration
as much as possible.
Insulate base of fireplace with a non-combus-
tible insulation rated for a minimum of 300
degrees 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. 10)
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 sheeting material to assure the
space around the fireplace is totally protected.
(Fig. 5)
When installing the chimney, DO NOT caulk
between outer pipe and firestop. It is vital that
some air be allowed to flow through this very
thin gap.
CAUTION: WHEN INSTALLING A FIRE-
PLACE IN AN INSULATED ENCLOSURE, BE
SURE ALL REQUIRED AIR SPACES ARE
MAINTAINED. (Fig. 20, Page 14)
Installation
Chimney Supports
The chimney system is supported by the fireplace for
vertical chimney heights less than 30 feet above the
hearth. Chimney supports are required if the vertical
height exceeds 30 feet with SK8 chimneys or 20 feet
with 3-wall chimneys. Locate chimney supports at
ceiling holes or other structural framing at 30 foot
(SK8) or 20 foot (3-wall) heights. Spacing between
chimney supports must not exceed 30 feet(SK8) or 20
foot (3-wall). Use Chimney Support Model SKCS8.
(Note: the SKCS8 can not be mounted directly to
the fireplace.) Support provided by elbow straps
fulfills the support requirement only if they are spaced
as previously described. (A chimney support is 2¹⁄₂"
long when installed.)
Angled chimney runs require a support every six (6)
feet in addition to the elbow straps. Chimney supports
are used for this function. (Fig. 9)
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. (Fig. 5, Page 5)
If you need help in determining fireplace location or
how the chimney system should be run, contact your
Vermont Castings, Majestic Products dealer for
assistance.
FP284
Fig. 9 Chimney support installation
CHIMNEY
SUPPORT
STRAP
SKCS8