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EYF Series Unvented Gas Log Set
This appliance has been specifically tested
and design certified for installation only
in a solid-fuel burning fireplace including
factory-built UL127 fireplaces and masonry
fireplaces, or in a listed ventless firebox
(see below).
Exception: DO NOT install this appliance
in a factory-built fireplace that includes
instructions stating that it has not been
tested or should not be used with unvented
gas logs.
Use manufacturer's installation and clearance requirements
as defined in their manual.
The EYF Series unvented room heater is approved for
installation into the following unvented fireplaces:
GCUF(32,36,42) and VFR(32,36,42) Series Fireboxes
The EYF Series unvented room heater may also be in-
stalled into a Ventless Firebox Enclosure for Gas Fired
Decorative Type Unvented Room Heaters per ANSI
Z21.91b.2004, as long as firebox hearth dimensions meet
the minimum hearth dimensions shown below.
D
A
Model
A
EYF18
25"
(635 mm) (330 mm) (445 mm) (433 mm)
FP2530
hearth dims
EYF24 w/
29"
EYF24-(R,F)
(737 mm) (330 mm) (495 mm) (433 mm)
EYF24 w/
33"
EYF30-R
(838 mm) (330 mm) (641 mm) (433 mm)
Figure 1 -
Hearth Minimum Dimension for Solid Fuel Burning
Fireplaces and UL127 Factory Built Fireplaces
6
Monessen • EYF18/24 Gas Log Heater Installation/Owner's Manual • 65D1009 • Rev G • 01/2020
C
FP2530
B
B
C
D
13"
17Z\x"
17"
13"
19Z\x"
17"
13"
25Z\v"
17"
FIREPLACE and HEARTH DIMENSIONS
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.
IMPORTANT INFORMATION FOR THE INSTAL-
LATION OF THIS GAS LOG SET IN A FIRE-
PLACE WITH A RESTRICTIVE BARRIER
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
Restriction (x)
No Restriction
1/2" to 1Z\x"
Greater than 1Z\x" to 3"
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.
Glass door frames
with adjustable
louvers should
have the louvers
fully open while the
unit is in operation
X
Height of restrictive barrier
caused by glass door frames,
recessed fireplaces, etc. from
the base or bottom surface of
the unit.
Figure 2 -
Reference Drawing of a Natural Flame Log
Set in an Enclosure
Minimum Depth of
Fireplace/Firebox
13"
16"
16"
*
The log set should
be placed against or
as near as possible
to the rear wall of the
fireplace/firebox.
L O
O N
H I
I
G
O F
N
F
Refer to
Table 1
FP2531
fireplace w barrier
FP2531
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