DeWalt DXH125FAVHC Instruction Manual page 4

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 lead-
ing to serious injury or death. Symptoms of carbon monoxide poi-
soning can include headaches, dizziness and difficulty in breathing.
Fuel Gas Odor
LP gas and natural gas 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 (LP) 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 (LP) gas tank or cylinder fuel supply valves, or the main fuel supply valve
located at the meter if you use natural gas.
• Propane (LP) gas 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 a telephone remote from the area of the leak 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.
Odor Fading - No Odor Detected
• Some people cannot smell well. Some people cannot smell the odor of the man-
made chemical added to propane (LP) or natural gas. You must determine if you
can smell the odorant in these fuel gases.
• Learn to recognize the odor of propane (LP) gas and natural gas. Local propane
(LP) gas 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 (LP) gas and natural gas 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 (LP) gas odor may differ in intensity at different levels. Since Propane (LP)
gas 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 (LP) gas has a distinctive odor. Learn to recognize these odors.
(Reference Fuel Gas Odor and Odor Fading sections on this same page)
• Even if you are not properly trained in the service and repair of the heater,
ALWAYS be consciously aware of the odors of propane (LP) gas and natural gas.
• If you have not been properly trained in repair and service of propane (LP) gas
then do not attempt to light heater, perform service or repairs, or make any
adjustments to the heater on the propane (LP) 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!
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