
2
105717
VENT-FREE NATURAL GAS HEATER
MBN10LA AND MBN6LA
™
Carbon Monoxide Poisoning: Early signs
ofcarbonmonoxidepoisoningresemblethe
flu, with headaches, dizziness, or nausea. If
you have these signs, the heater may not be
working properly. Get fresh air at once!
Haveheaterserviced.Somepeoplearemore
affected by carbon monoxide than others.
Theseincludepregnantwomen,peoplewith
heartorlungdiseaseor anemia,thoseunder
the influence of alcohol, and those at high
altitudes.
Natural Gas: Natural gas is odorless. An
odor-making agent is added to natural gas.
Theodorhelpsyoudetectanaturalgasleak.
However, the odor added to natural gas can
fade.Naturalgasmaybepresenteventhough
no odor exists.
Make certain you read and understand all
warnings.Keepthismanualforreference.It
isyourguidetosafeandproperoperationof
this heater.
SAFETY
INFORMATION
WARNINGS
IMPORTANT: Read this owner’s
manual carefully and completely
before trying to assemble, oper-
ate, or service this heater. Im-
proper use of this heater can
causeseriousinjuryordeathfrom
burns, fire, explosion, and car-
bon monoxide poisoning.
DANGER: Carbon monoxide
poisoning may lead to death!
WARNING: Any change to
this heater or its controls can be
dangerous.
1. This appliance is only for use with the
typeof gasindicated onthe ratingplate.
Thisappliance isnot convertiblefor use
with other gases.
2. If you smell gas
• shut off gas supply
• do not try to light any appliance
• do not touch any electrical switch; do
not use any phone in your building
• immediately call your gas supplier
from a neighbor’s phone. Follow the
gas supplier’s instructions
• ifyou cannotreach yourgassupplier,
call the fire department
3. Heater model MBN10LA shall not be
installed in a bathroom.
4. This heater needs fresh, outside air ven-
tilation to run properly. This heater has
anoxygen depletionsensor (ODS)pilot
light safety system. The ODS shuts
down the heater if not enough fresh air
is available. See Fresh Air for Combus-
tion and Ventilation, pages 4 through 6.
5. Keep all air openings in front and bot-
tom of heater clear and free of debris.
This will insure enough air for proper
combustion.
6. If heater shuts off, do not relight until
you provide fresh, outside air. If heater
keeps shutting off, have it serviced.
7. Do not run heater
• where flammable liquids or vapors
are used or stored
• under dusty conditions
8. Do not use heater if any part has been
under water. Immediately call a quali-
fied service technician to inspect the
room heater and to replace any part of
the control system and any gas control
which has been under water.
9. Turn off heater and let cool before ser-
vicing. Only a qualified service person
should service and repair heater.
10. Operating heater above elevations of
4,500 feet could cause pilot outage.
11. Before usingfurniture polish,wax, car-
pet cleaner, or similar products, turn
heater off. If heated, the vapors from
theseproductsmay createa whitepow-
der residue within burner box or on
adjacent walls or furniture.
Do not place clothing or other
flammable material on or near
the appliance. Never place any
objects on the heater.
Surface of heater becomes very
hot when running heater. Keep
children and adults away from
hot surface to avoid burns or
clothing ignition. Heater will re-
main hot for a time after shut-
down. Allow surface to cool be-
fore touching.
Carefully supervise young chil-
dren when they are in the same
room with heater.
Make sure grill guard is in place
before running heater.
Keeptheapplianceareaclearand
free from combustible materials,
gasoline and other flammable
vapors and liquids.
Due to high temperatures, the
appliance should be located out
oftrafficandawayfromfurniture
and draperies.
WARNING: Do not use any
accessory not approved for use
with this heater.