6
Sentry Tube Heaters
Safety Precautions
■ Do not use this radiant heater for heating human living quarters.
■ 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 Owner's Manual, heater's dataplate, or contact the LB
White Company 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 in humans leading to serious injury
or death. Symptoms of carbon monoxide poisoning can include headaches, dizziness and difficulty
in breathing.
■ Symptoms of improper combustion affecting livestock can be disease, lower feed conversion,
or death.
Fuel Gas Odor
Propane gas and natural gas have man-made odor-
ants added specifically for detection of fuel gas leaks.
If a gas leak occurs, you should be able to smell the
fuel gas .
THAT'S 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 gas tank or cylinder fuel supply
valves, or the main fuel supply valve located at the
meter if you use natural gas.
■ Propane 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 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 the
leak, check for further leakages, and then relight
the appliance for you.
Owner's Manual • Sentry
WARNING
Asphyxiation Hazard
Odor Fading - No
Odor Detected
■ Some people cannot smell well. Some people
cannot smell the odor of the man-made chemi-
cal added to propane or natural gas. You must
determine if you can smell the odorant in these
fuel gases.
■ Learn to recognize the odor of propane gas and
natural gas. Local propane gas dealers and your
local natural gas supplier (utility) 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 and natural gas is col-
orless 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 odor may differ in intensity at different
levels. Since propane 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.