B
2”
51mm
C
3”
76mm
D
67”
1702mm
E
29 1/4”
743mm
Installing the Fireplace Insert Enclosure
COMBUSTIBLE FRAMING
The Morsø Fireplace Insert Enclosure is designed with spacers on the side and back surfaces that
prevent the enclosure walls from coming in contact with adjacent combustible materials that are
used for framing around the enclosure. In addition, the top of the enclosure includes a standoff that
prohibits the header for the combustible construction above the enclosure from being installed too
close the heat from the Insert, enclosure top and chimney. Under no circumstances should the
spacers or standoff be modified. REDUCTIONS TO ANY OF THE REQUIRED CLEARANCES MAY
RESULT IN PROPERTY DAMAGE, BODILY INJURY OR EVEN DEATH.
Refer to the adjacent illustration for minimum clearance
requirements. Typical framing along with rough framing
dimensions are shown in FIGS. 2, 3 & 4 on page 7 of
these instructions. The actual framing details will vary de-
pending on the placement of your enclosure and insert. It
is important to take care when framing to be sure that the
area under the enclosure is level and that all framing
members are plumb. Forcing the enclosure into a open-
ing that is not level and plumb will cause problems later in
the installation process and should be avoided.
It is important to note that only nominal 2 X 4 framing ma-
terials should be used to frame the area directly above the
standoff on the front of the enclosure. This is necessary
to prevent combustible framing from encroaching in the
space above the enclosure top. We suggest that the
framing for the area directly above the standoff on the
MINIMUM CLEARANCE TO COMBUSTIBLE
MATERIALS
A
10”
254mm
front of the enclosure be done after the enclosure is secured in place and chimney has been in-
stalled. This allows room to work on the chimney and for access for the building inspector.
Once the rough framing is completed, the Fireplace Insert Enclosure (with chimney base or anchor
plate and flexible vent connector installed) can be slid into the rough opening. Make any last adjust-
ments to center the enclosure in the opening and secure in place with at least four nails using the
pilot holes provide in the enclosure front flanges. Countersink the nail heads until they are flush with
the front flange surfaces as this will facilitate installation of facing materials later.
CHIMNEY INSTALLATION
With the Insert Fireplace Insert Enclosure secured to the framing, the chimney system may now be
installed. Follow the chimney manufacturer‘s instructions exactly including the use of all support
hardware, elbows, joist, attic and insulation shields, firestops, flashing kits, storm collars and caps.
The safety and functionality of the chimney are critical parts of the installation of the enclosure and
Insert.
After the chimney installation is complete, install the framing above the standoff on the front of the
enclosure. This would be a good time to install the required non-combustible facing base material to
the front of the enclosure. See FIG. 6 on page 8 for information on the limits for placement of com-
bustible and non-combustible materials. We recommend that you wait to place any combustible fac-
ing materials on any framing until after the installation has been inspected and approved by your lo-
cal building inspector.
5
