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NOTE: DIAGRAMS & ILLUSTRATION ARE NOT TO SCALE.
40"
16"
Optional
Hearth
Extension
Fireplace
Opening
Top Stand-
Off Spacer
(on appliance)
Top of Appliance
Finished Wall
Header
Shown with Canopy
Installed (required on
UVF-36 only)
Non-Combustible
Material
3" Min.
(shaded area)
6
Ceiling clearance: The ceiling must be at
least 40" from the top of the fi rebox opening
(Figure 2 ).
Noncombustible material: Noncombustible
materials, such as slate and marble, must be
at least 1/2" thick and may be used without
restriction above the fi rebox opening, to the
sides or as a hearth extension, so long as
they do not obstruct vent openings for heat
circulating models.
RECOMMENDATION: Use high temperature
fi nish material for the mantels and/or use
the canopy (for UVFRC-3628, UVFRC-3628-
H, UVFRC-4228 & UVFRC-4228-H).
Clearances
Ensure the minimum clearances shown in
Figures 2 through 6 are maintained. Left and
right clearances are determined when facing
the front of the fi rebox.
Follow these instructions carefully to ensure safe
installation. Failure to follow these requirements
may create a fi re hazard.
Sidewall clearances: The sides of the fi rebox
opening must be at least 16" from any com-
bustible wall (Figure 2 ).
Figure 2
Not to Scale
Figure 1
Combustible Wall Clearance
Above Appliance (all models)
Figure 3
CAUTION
Do not install in the vicinity where
gasoline or other fl ammable liquids
may be stored. The Vent-Free fi re-
box must be kept clear and free from
these combustible materials.
WARNING
Do not use a blower insert, heat
exchanger insert or other acces-
sory not approved for use with this
fi replace.
WARNING
Do not install these built-in Vent-
Free fi reboxes in sleeping quarters,
or in recreational vehicles.
WARNINGS
Do not install these appliances:
• Where curtains, furniture, cloth-
ing or other fl ammable objects
are less than 42" from the front of
the Vent-Free room heater.
• In high traffi c areas.
• In windy or drafty areas.
LOCATION OF FIREBOX
Carefully select the best location for installation
of your built-in Vent-Free fi rebox. The following
factors should be taken into consideration:
• Clearance to side wall, ceiling, woodwork
and windows.
• Location must not be affected by drafts
caused by kitchen exhaust fans, return air
registers for forced air furnaces/air condi-
tioners, windows or doors.
• Installation must provide adequate ventila-
tion and combustion air.
• Do not install this fi rebox in a sleeping room
or bathroom.
• Location should be out of high traffi c areas
and away from furniture and draperies due
to heat from fi rebox.
• Never obstruct the front opening of the
Vent-Free fi rebox or restrict the fl ow of
combustion and ventilation air.
• Minimize modifi cations to existing construc-
tion. See Figure 1 for location suggestions.