Section 6: Finishing; Finishing Around The Fireplace; Installing The Nailing Flange Extension - Montigo L42DF Installation & Maintenance Manual

Finishing Around the Fireplace

Combustible mantels and mouldings may be safely installed over the
top and on the front of the fireplace provided that they do not project
beyond shaded area shown in Figure 24.
Fireplace Facing
When sizing the finish material for your fireplace, it is important to
remember the following: THE OPENINg MUST NOT BE OBSTRUCTED
IN ANY WAY - to do so restricts the air supply for the control
compartments and heat exchanger it also prevents access for
servicing controls.
The face of the fireplace may be painted to match the room decor,
provided you use a heat-resistant paint. Decorative facing must not
extend past the fireplace opening at all, because it will interfere with
the access to retainers for removal of glass door.
Horizontal Run (in.)
Figure 24. Combustible mantels and facings.

Installing the Nailing Flange Extension

Once the fireplace is placed into the rough framed opening, and the
supplied steel lintel is in place, (Part No. H42074) (see Figure 2),
Figure 25. Installing the Nailing Flange Extension.
XG0181 -112811
Installation
The supplied nailing extension must be placed along the top edge of
the fireplace and securely fastened in place to the metal lintel, and
combustible wood framing. 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.
Combustible
Construction allowed
in shaded area
Combustible Facing
Materia l
Combustible Stud
with shield
Non-Combustible
Facing Material
Figure 25a. Combustible surrounds.
Steel Stud construction allowable
within the grey-out area
Top of fireplace
6"
Non-Combustible
Facing Material
Drywall/Sheetrock
Header
WARNING!
We recommend careful consideration be given to the effects of
elevated mantel temperatures which may be in excess of product
design, for example: candles, plastic or pictures. This can cause
melting, deformation, discolouration or premature failure of T.V.
radio, and other electronic components.
WARNING!
When covering the upper metal portion of the fireplace, up to 4"
(as shown, Fig.24) with a non-combustible material Please Note:
The decorative facing materials may be subject to temperatures
in excess of 250° F. This should be considered when selecting
facing materials.
L42DF* Indoor Gas Fireplace

Section 6: Finishing

6"
3"
Page 19