HVFL Unvented Gas Logs
8
59D1016
FIREPLACE and HEARTH DIMENSIONS
W
ARNING
This appliance is for installation only in a solid-fuel burning masonry or
UL127 factory-built fireplace, vent free appliance, or in listed ventless
firebox enclosure. It has been design certified for these installations.
Exception:
DO NOT install this appliance in a factory-built fireplace that
includes instructions stating it has not been tested or should not be
used with unvented gas logs.
Use manufacturer's installation and clearance require-
ments as defined in their manual.
The HVFL Series unvented room heater is approved for
installation into the following unvented fireplaces:
GCUF Series Fireboxes Magnum36/42 or Lo-Rider36
NOTE:
HVFL4 log set will not fit into GCUF3
fireboxes.
The HVFL Series unvented room heater may also be
installed into a Ventless Firebox Enclosure for Gas Fired
Decorative Type Unvented Room Heaters per IAS Require-
ment No. -97 ANSI Z1.91-001 (typically referred to as a
"Universal Firebox"), as long as firebox hearth dimensions
meet the minimum hearth dimensions shown below.
C
A
D
B
FP2530
hearth dims
Model
A
B
C
D
18HVFL
18”
13
Z\v
”
7”
17”
(457 mm) (337 mm) (686 mm) (43 mm)
4HVFL
Z\v
”
13
Z\v
”
8
Z\x
”
17”
(565 mm) (337 mm) (74 mm) (43 mm)
4HVFL w/
5
Z\x
”
13
Z\v
”
3
Z\x
”
17”
30” Logs
(648 mm) (337 m) (86 mm) (43 mm)
Figure 2 -
Hearth Minimum Dimensions
FP530
Barriers such as the bottom of a glass door
frame placed in front of a gas log set can
change the air flow characteristics of the
fireplace which in turn can cause the unit
to overheat and malfunction.
W
ARNING
IMPORTANT INFORMATION FOR THE
INSTALLATION OF THIS GAS LOG SET
The following are guidelines for placing a gas log set in
a fireplace that has a restrictive barrier along the bottom
front opening of the fireplace. Some examples of barri-
ers are glass/screen door frames and sunken/recessed
fireplaces.
Height of
Minimum Depth of
Restriction (x)
Fireplace/Firebox
No Restriction
13
Z\v
”
0” to 1
Z\x
”
16”
Greater than 1
Z\x
” to 3”
16”
Greater than 3”
*
*Any barrier greater than 3” placed in front of the gas log
set is not recommended by the manufacturer.
NOTE:
Non combustible material such as refractory brick
may be used to line the floor of the fireplace in order to raise
the height of the gas log set in relation to a restrictive barrier.
If the unit is raised, the minimum height dimension listed in
the homeowner’s manual must not be exceeded.
NOTE:
If the log set is equipped with a remote receiver, a
restrictive barrier may reduce the battery life by increasing
the ambient temperature inside the fireplace. Placement
of the receiver outside of the fireplace will extend the
battery life.
FP2811
set in enclosure
Depth of Fire-
place/Firebox
(Refer to
Table)
The log set should
be placed against or
as near as possible
to the rear wall of the
fireplace
Glass door
frames with ad-
justable louvers
should have
the louvers fully
open while the
unit is in opera-
tion
Height of restrictive bar-
rier caused by glass door
frames, recessed fireplaces,
etc. from the base or bottom
surface of the unit. (Refer to
Table).
Figure 3 -
Reference Drawing of a Natural
Flame Log Set in an Enclosure
FP794
