Installing The Standoffs; Installing The Nailing Flange - Montigo H38DF-ST Indoor Installation, Operation & Maintenance Manual

1. Ensure that the two long mounting brackets are facing the bottom
of the termination. (See inset). This will provide more heat protection
at the top of the termination, where temperatures are highest.
2. Attach to the faceplate of the termination using four sheet metal
screws.
Installing Heat Shield for Vinyl Siding
Figure 5. Installing the VSS Vinyl Shield heat guard.

Installing The Standoffs

To avoid elevated mantel temperatures, all H(L)38DF-ST Series
gas fireplaces are required to have the supplied standoffs installed.
The fireplace is supplied with two standoffs. Bend and install these
standoffs on top of the fireplace ensuring that the height of the standoff
maintains a 6" clearance.
Figure 6. Installing the standoff's.

Installing the Nailing Flange

Extension
Once the fireplace is placed into the framed opening, the supplied-
nailing extention must placed along the top edge of the fireplace, and
nailed in place to the framing, as illustrated below. Fasten the steel
lintel is in place, (Part No. H38074) see Figure 8, 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 characteris-
tics, ie: cement board or equivilent.
Figure 7. Installing the Nailing Flange Extension.
Part No. XG0207 -092109
Installation
Converting the H(L)38DF-ST from
Top Vent
H(L38DF-ST Top / Side Vent
Use the following instructions to convert an H(L)38DF-ST for Top Vent
or Side Vent use.
5" Inner Flue
Cover Plate
8" Outer Flue
Cover Plate
Figure 8. Installing the Top Vent / Side flue covers.
5" Inner
Flue Collar
Figure 8a. Installing the Side Vent / Top flue covers.
Part No. H38074
H(L)38DF-ST See-thru indoor Gas Fireplace
Top Vent / Side Vent
5" Inner
Flue Collar
8" Outer
Flue Collar
8" Outer Flue
Cover Plate
5" Inner Flue
Cover Plate
8" Outer
Flue Collar
Top Vent
1. Install the 5" inner flue
collar on the top flue outlet
and secure the cap in
place with four (4) screws,
as shown in Figure 8.
2. Install the 8" outer flue
collar on the top flue
outlet, and secure it with
five (5) screws, as shown
in Figure 8.
3. Install the flue gasket
material and flue cover
plate on the side vent
outlet . Fasten the cover
plate(s) with four (4)
and five (5) screws, as
illustrated.
Side Vent
1. Install the 5" inner flue
collar on the side flue
outlet and secure the
cap in place with four
(4) screws, as shown in
Figure 8a.
2. Install the 8" outer flue
collar on the side flue
outlet, and secure it with
five (5) screws, as shown
in Figure 8a.
3. Install the flue gasket
material and flue cover
plate on the top vent
outlet. Fasten the plate
with four (4) screws,
and five (5) crews as
illustrated.
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