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The following conditions can result in
potentially dangerous CO situations
Excessive spillage or reverse-venting of fuel
burning appliances caused by outdoor conditions,
such as:
• Wind direction and/or velocity, including
high gusts of wind.
• Heavy air in the vent pipes (cold/humid air
with extended periods between cycles).
• Negative pressure differential resulting
from use of exhaust fans.
• Simultaneous operation of several fuel-
burning appliances competing for limited
internal air.
• Obstructions in or unconventional vent-
pipe designs which can amplify the above
situations.
2. Extended use of un-vented fuel burning
devices.
3. Temperature increase that can trap
exhaust gases near the ground.
Symptoms of Carbon Monoxide
Poisoning
The following symptoms are related to CO
POISONING:
• Mild Exposure - Slight headache, nausea,
vomiting, fatigue (flu-like symptoms).
• Medium Exposure - Throbbing headache,
drowsiness, confusion, fast heart rate.
• Extreme Exposure - Convulsions,
unconsciousness, heart and lung failure.
Exposure to carbon monoxide can cause
brain damage and/or death.
WARNING
Many causes of reported CARBON
MONOXIDE POISONING indicate that while
victims are aware that they are not well, they
become so disoriented that they are unable to
save themselves by either exiting the building or
calling for assistance. Also, young children and
pets may be the first to be affected