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Vent-Free Firebox Framing Dimensions (in inches)
Model
A
b
C
Framing
Height
Framing
Width
Framing
Depth
VFS32FB
38-7/8
35-3/8
23-3/8
VFS36FB
38-7/8
40-3/8
23-3/8
VFS42FB
38-7/8
44-3/8
23-3/8
Attention:
Add 3-3/4 inches to "A" Dimension when using flush
mantel base.
Any vent-free Gas Log Heater must be “For use with approved ANSI
Z21.11.2 unvented room heater.”
Follow and complete the installation instructions of the gas log set
and the requirements of this firebox.
Check all fittings for leaks before lighting the gas log set.
In planning the installation for the firebox, it is necessary to determine
where the unit is to be installed and whether optional accessories
are desired. Gas supply piping should also be planned at this time.
A Gas Shut-Off Must Be In This Line.
The firebox can be mounted on any of these surfaces:
1. A flat hard combustible or non-combustible surface.
2. A raised platform of combustible or non-combustible material.
3. Recessed into the floor as illustrated by
Figure 5
.
4. Supported under all four corners of the firebox so that contact
is made on all four perimeter edges on the bottom of the unit
(Example: Four concrete masonry blocks).
If the firebox is installed directly on carpeting, tile or other combustible
material other than wood flooring, it should be installed on a metal
or wood panel extending the full width and depth of the unit.
At this point, you should have decided what components to include
in your installation, and where the firebox is to be located. If this
has not been done, stop and consult your dealer for assistance
with this planning.
Planning Your Installation
Please note that the optional VFA2 Fresh Air kit available for use
with the Vent Free Firebox must be installed at the time of the initial
installation. Refer to pages 10, 11 and 12 for detailed instructions
for the air kit.
Accessory kits such as the FBB5 Blower kit, Trim kits, Mantels, Full
Cabinet Mantels, plus other Decorative Frame, Hood, and Door
accessory kits may be installed after the firebox is secured to the
framed opening.
Refer to the instructions provided with each of the optional accessory
kits for proper installation and operation.
Firebox Framing
Firebox framing can be built before or after the firebox is set in place.
Framing should be positioned to accommodate wall covering and
firebox facing material. The firebox framing should be constructed
of 2 x 4 lumber or heavier. The framing headers may rest on the
top of the firebox standoffs. Refer to
Figures 6 and 7
for firebox
framing dimensions.
Figure 5
Figure 6
FIREbOx INSTALLATION INSTRUCTIONS