Monessen Hearth NBST27NV-B Installation & Owner's Manual page 27

Important Safety and Operating Information (continued)
OWNER
Please retain these instructions for future reference.
•
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 fire, burns, explosion
or carbon monoxide poisoning.
•
Do not allow fans to blow directly into the fireplace. Avoid any drafts that alter burner flame patterns.
•
Do not use a blower insert, heat exchanger insert or other accessory, not approved for use with
this heater where applicable.
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 appliance.
4. Do not place clothing or other flammable material
on or near the appliance.
5. Any safety screen removed for servicing an appli-
ance, must be replaced prior to operating the heater.
6. Installation and repair should be done by a quali-
fied service person. To prevent malfunction and/or
sooting, an unvented gas heater should be cleaned
before use and at least annually by a professional
service person. More frequent cleaning may be
required due to excessive lint from carpeting, bed-
ding materials, etc. It is imperative that control com-
partments, burners and circulating air passageways
be kept clean.
7. WARNING: Any change to this heater or its controls
can be dangerous.
8. Unvented gas room heaters are a supplemental
zone heater. They are not intended to be the primary
heating appliance.
9. 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.
10. The installation must conform with local codes or, in
the absence of local codes, with the National Fuel
Gas Code, ANSI Z223.l/NFPA54.
11. This unit complies with ANSI Z21.11.2 Unvented
Heaters, latest edition and
2012.
12. Do not install the heaters in a bathroom or bedroom.
Monessen • NBST27-B Gas Log Set Owner's /Installation Manual • 4615-900 Rev. D • 01/2020
ANSI Z21.60-2012/CSA2.26-
WARNING
13. 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. Refer to log placement
instructions for proper installation.
14. 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.
15. Caution: Candles, incense, oil lamps, etc. produce
combustion by-products including soot. Vent-free
room heater will not filter or clean soot produced by
these types of products. In addition, the smoke and/or
aromatics (scents) may be reburned 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.
16. This heater shall not be installed in a room or space
unless the required volume of indoor combustion air is
provided by the method described in the National Fuel
Gas Code, ANSI Z223.1/NFPA 54, the International
Fuel Gas Code or applicable local codes.
17. Keep room area clear and free from combustible mate-
rials, gasoline and other flammable vapors and liquids.
18. Unvented gas room heaters emit moisture into the
living area. In most homes of average construction,
this does not pose a problem. In houses of extremely
tight construction, additional mechanical ventilation is
recommended.
19. During manufacturing, fabricating and shipping, various
components of this appliance are treated with certain
oils, films or bonding agents. These chemicals are not
harmful but may produce annoying smoke and smells
as they are burned off during the initial operation of the
appliance; possibly causing headaches or eye or lung
irritation. This is a normal and temporary occurrence.
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