Monessen Hearth LCUF32-F User Manual

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9.   The installation must conform with local codes or, in 
the absence of local codes, with the National Fuel Gas 
Code, ANSI Z223.l/NFPA54.
10. This unit complies with ANSI Z21.91 ventless firebox 
enclosures for gas-fired unvented decorative room 
heaters.
11.  Do not install heater in a bathroom or bedroom.
12.  Correct installation of the logs, proper location of the 
heater, and annual cleaning are necessary to avoid 
potential problems with sooting. Sooting, resulting from 
improper installation or operation, can settle on surfaces 
outside the fireplace. See log placement instructions for 
proper installation.
13.  Avoid any drafts that alter burner flame patterns. Do not 
allow fans to blow directly into fireplace. Do not place 
a blower inside burn area of firebox. Ceiling fans may 
create drafts that alter burner flame patterns. Sooting 
and improper burning will occur.
14.  Caution: Candles, incense, oil lamps, etc. produce 
combustion byproducts including soot. Vent-free appli-
ances will not filter or clean soot produced by these types 
of products. In addition, the smoke and/or aromatics 
(scents) may be reburnt in the vent-free appliance which 
can produce odors. It is recommended to minimize the 
use of candles, incense, etc. while the vent-free appliance 
is in operation. 
15.  An unvented gas-fired heater uses air (oxygen) from the 
room in which it is installed. Provisions for adequate 
combustion and ventilation air must be provided. See 
installation guidelines. 
OWNER
Please retain these instructions for future reference.
IMPORTANT
Read these instructions carefully before installing or trying to operate a vent-free gas heater in this fi rebox. 
IMPORTANT SAFETY INFORMATION
  1. Due to high temperatures, the appliance should 
be located out of traffic and away from furniture 
and draperies.
  2.  Children and adults should be alerted to the hazard 
of high surface temperature and should stay away 
to avoid burns or clothing ignition.
  3. Young children should be carefully supervised 
when they are in the same room with the appli-
ance. 
  4.  Do not place clothing or other flammable material 
on or near the appliance. 
  5.  Any safety screen or guard removed for servicing 
an appliance, must be replaced prior to operating 
the heater.
  6.  Installation and repair should be done by a qualified 
service person.
  7.  To prevent malfunction and/or sooting, an unvented 
gas heater should be cleaned before use at least 
annually by a professional service person. More 
frequent cleaning may be required due to exces-
sive lint from carpeting, bedding material, etc. It is 
imperative that control compartments, burners and 
circulating air passageways be kept clean.
8.   CARBON MONOXIDE POISONING: Early signs of 
carbon monoxide poisoning are similar to the flu with 
headaches, dizziness and/or nausea. If you have these 
signs, obtain fresh air immediately. Have the heater 
serviced as it may not be operating properly.
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• Any change to this heater or its controls can be dangerous.
• Improper installation or use of the heater can cause serious injury or death from fi re, 
burns, explosion or carbon monoxide poisoning.
• Do not allow fans to blow directly into the fi replace. Avoid any drafts that alter burner 
fl ame patterns.
• Do not use a blower insert, heat exchanger insert or other accessory, not approved for 
use with this heater where applicable.
W
ARNING
INSTALLER
Please leave these instructions with the appliance.