Installing The Heat Guard; Installing The Nailing Flange Extension - Montigo L42DF ST Installation & Maintenance Manual

Installing the Heat Guard

Included with the L42DF-ST* Gas fireplace, is a framing heat shield
Kit. This kit is fabricated from galvanized steel and arrives with
six (6) pieces, as shown below. The shields protect all adjacent
combustible materials, mantels and mouldings from excessive
heat radiated by the fireplace.
NOTE: The shields must be installed as shown in Figures 7- 7a.
Step 1. Fasten 4 side shields in place with nails or screws, flush with
the framing as shown in Figure 7 (L42FS01x4). These are installed
with the Wide flanges facing the center of the fireplace opening,
and the shallow flange toward inside of room.
45"
40"
35½"
40"
Figure 7. Combustible Framing Side Heat Shield L42FS01 x 4 pcs.
Step 2. Nail or screw the top shield in place flush with framing, as
shown in figure 7a.
45"
40"
35"
40"
Figure 7a. Non combustible header H42ST060 x 2 pcs.
XG0182 -151126
Installation
Both walls Typical.M ay
not be exactly as shown.
Both Side
shields typical
framing
flush with
framing
fireplace
fasteners
INSET
Section
23 3/4"
Both walls Typical.M ay
not be exactly as shown.
23 3/4"

Installing the Nailing Flange Extension

Once the fireplace is placed into the rough framed opening and the
heat guards are fastened, the supplied Nailing Flange Extension
(L42087 x 2 pcs) must be fasten securely into place, with nails or
wood screws. as shown in Figure 8.
Installing the Nailing Flange Extension.
Figure 8.
Note: The nailing flange extension can be substituted with a
piece of NON-Combustible material of the same size and thermal
characteristics, ie: cement board or equivalent. This is recommended
in applications where the facing materials will not adhere to the
metal nailing flange.
Note: Images are shown without screens for clarity purposes.
However, your fireplace should not be operated without proper
installation of screens.
L42DF-ST* Indoor Gas Fireplace
Supplied
Non-Combustible
Header
Nailing
6"
Flange
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