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Odor Fade Warning
Odor Fading - No Odor Detected
• Some people cannot smell well. Some people cannot smell the odor of the man-made
chemical added to propane(G31). You must determine if you can smell the odorant in
these fuel gases.
• Learn to recognize the odor of propane gas (G31). Local propane gas (G31) dealers will
be more than happy to give you a scratch and sniff pamphlet. Use it to become familiar
with the fuel gas odor.
• Smoking can decrease your ability to smell. Being around an odor for a period of time
can affect your sensitivity to that particular odor. Odors present in animal confinement
buildings can mask fuel gas odor.
• The odorant in propane gas (G31) is colorless and the intensity of its odor can fade under
some circumstances. If there is an underground leak, the movement of gas through the
soil can filter the odorant.
• Propane gas (G31) odor may differ in intensity at different levels. Since Propane gas (G31)
is heavier than air, there may be more odor at lower levels.
• Always be sensitive to the slightest gas odor. If you continue to detect any gas odor,
no matter how small, treat it as a serious leak. Immediately go into action as discussed
previously.
ATTENTION - CRITICAL POINTS TO REMEMBER!
• Propane gas (G31) or Butane/Propane mixture (G30+G31) has a distinctive odor. Learn
to recognize these odors. (Reference Fuel Gas Odor and Odor Fading sections above.
• Even If you are not properly trained in the service and repair of the heater, ALWAYS be
consciously aware of the odors of propane gas(G31) and natural gas.
• If you have not been properly trained in repair and service of propane gas(G31) or
Butane/Propane mixture(G30+G31) then do not attempt to light heater, perform service
or repairs, or make any adjustments to the heater on the propane (G31) or Butane/
Propane mixture(G30+G31) gas fuel system.
• A periodic sniff test around the heater or at the heater’s joints; i.e. hose, connections,
etc., is a good safety practice under any conditions. If you smell even a small amount of
gas, CONTACT YOUR FUEL GAS SUPPLIER IMMEDIATELY. DO NOT WAIT!
WARNING
Asphyxiation Hazard
• Do not use in unventilated areas
• The flow of combustion and ventilation air must not be obstructed
• Proper ventilation air must be provided to support the combustion air
requirements of the heater being used.
• Refer to the specification section of the heater’s manual, heater
dataplate, or contact the factory to determine combustion air ventilation
requirements of the heater.
• Lack of proper ventilation air will lead to improper combustion
• Improper combustion can lead to carbon monoxide poisoning leading
to serious injury or death. Symptoms of carbon monoxide poisoning can
include headaches, dizziness and difficulty in breathing.
Fuel Gas Odor
Propane gas(G31) and butane/propane mixture (G30+G31) gases have man‑made
odorants added specifically for detection of fuel gas leaks. If a gas leak occurs
you should be able to smell the fuel gas. Since Propane (G31) is heavier than
air you should smell for the gas odor low to the floor. ANY GAS ODOR IS YOUR
SIGNAL TO GO INTO IMMEDIATE ACTION!
• Do not take any action that could ignite the fuel gas. Do not operate any electrical
switches. Do not pull any power supply or extension cords. Do not light matches or any
other source of flame. Do not use your telephone.
• Get everyone out of the building and away from the area immediately.
• Close all propane (G31) gas tank or cartridge fuel supplyvalves, or the main fuel supply
valve located at the meter if you use natural gas.
• Propane gas(G31) is heavier than air and may settle in low areas. When you have reason
to suspect a propane leak, keep out of all low areas.
• Use your neighbor’s phone and call your fuel gas supplier and your fire department. Do
not re-enter the building or area.
• Stay out of the building and away from the area until declared safe by the firefighters and
your fuel gas supplier.
• FINALLY, let the fuel gas service person and the firefighters check for escaped gas. Have
them air out the building and area before you return. Properly trained service people must
repair any leaks, check for further leakages, and then relight the appliance for you.
