Safety Information
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A---W�A�R�N�IN�G�
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-R-IS_K_O _F _IN_D_O_O_R_A _IR____
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N_A_T_U_R_A_L _G_A_S -IS_A _N __
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�· POLLUTION!
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EXPLOSIVE GAS.
The products described in this manual are natural
gas direct-fired, forced air heaters. Natural gas
forced air heaters are primarily intended for
use for temporary heating of buildings under
construction, alteration or repair. Direct-fired
means that all of the combustion products of the
heater enter the heated space. This appliance
is rated at 98% combustion efficiency, but does
produce small amounts of carbon monoxide.
A DANGER
CARBON MONOXIDE POISONING
MAY LEAD TO DEATH!
Carbon monoxide is toxic. Humans can tolerate
only small amounts of carbon monoxide and so
precautions should be taken to provide proper
ventilation. Failure to provide proper ventilation
in accordance with the instructions in this manual
can result in death.
People with breathing problems should consult a
physician before using this heater.
Early signs of carbon monoxide poisoning
resemble the flu. Symptoms of improper
ventilation / carbon monoxide poisoning are:
Headache • Dizziness • Nausea • Dry Mouth
Sore Throat • Burning of Nose and Eyes
If you experience any of these symptoms:
GET FRESH AIR AT ONCE!
Have your heater
serviced and check for proper ventilation. Some
people are more affected by carbon monoxide
than others. These include: pregnant women,
those with heart or lung problems, anemia or those
under the influence of alcohol or at high altitudes.
FOR OUTDOOR USE. INDOOR USE
PERMITTED ONLY FOR : The temporary
heating of adequately ventilated buildings or
structures under construction, alteration or
repair! Provide at least a three square foot
(2,800 sq cm) opening of outside air for
every 100,000 Btu / Hr heater rating. Refer to
"Ventilation" on page 7 for further instructions.
WHAT TO DO IF THE SMELL OF GAS IS PRESENT:
- DO NOT attempt to light the heater.
- Extinguish any open flame.
- Shut off gas to heater.
- If odor continues, contact your local gas
supplier or fire department.
- DO NOT touch or use any electric switch or
any electric device that can cause a spark.
- Immediately call your gas supplier from a
neighbors phone. Follow the gas suppliers
instructions.
- If you can not reach your gas supplier, call
the fire department.
- Service must be done by a qualified
service agency.
IA WARNINGI RISK OF BURNS, FIRE AND
,�. ---�· EXPLOSION!
NEVER store or use gasoline or other flammable
vapors and liquids in the vicinity of this heater.
NEVER attempt to operate on Propane (LP) gas.
NEVER connect heater to an unregulated gas supply.
NEVER obstruct the flow of combustion and
ventilation air. (The front and rear of heater).
NEVER use duct work in front or rear of heater.
NEVER modify this heater or operate a heater that
has been modified.
NEVER service, move or handle heater while still
hot or operating
IA WARNING I CAUTION! HOT W HILE IN
•�---� OPERATION. DO NOT TOUCH.
KEEP CHILDREN, ANIMALS, CLOTHING AND
COMBUSTIBLES A WAY FROM HEATER.
Keep all combustible materials away from this heater.
Minimum Clearance From Combustibles
Sides
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Too
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Front
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Rear
24 in.
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36 in.
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72 in.
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24 in.
GAU-NFA-HH-150K
Larson Electronics, LLC
Phone: (800) 369-6671
Fax: (903) 498-3364
www.larsonelectronics.com
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