User's Manual

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3. Extreme Exposure: Unconsciousness, convulsions, cardiorespiratory failure,
death.
The following symptoms are related to Carbon Monoxide Poisoning and need to
be discussed with ALL members of the household:
1. Mild Exposure: Slight headache, nausea, vomiting, fatigue (often described
as “flu-like” symptoms).
Understanding the Dangers of CO Gas Poisoning
Many cases of reported CARBON MONOXIDE POISONING indicate that while
victims are aware they are not well, they become so disoriented they are unable
to save themselves by either exiting the building or calling for assistance. Young
children and household pets are typically the first affected.
Note: Applicable building codes or other local laws
may require the installation of CO and fire alarms
in addition to the minimum recommended by this
manual.
2. Medium Exposure: Severe throbbing headache, drowsiness, confusion, fast
heart rate.
Potential Problem Sources of CO Gas Inside the Home
The sources of Carbon Monoxide gas can be very difficult to locate due to the
odorless, colorless nature of the gas, especially after the home has been aired-out
prior to the investigators arrival. Look closely at the following:
1. Excessive spillage or reverse venting of fuel burning appliances:
• 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 the use of exhaust
fans.
• Simultaneous operation of several fuel burning appliances
competing for limited internal air.
• Vent pipe connection vibrating loose from clothes dryers,
furnaces, or water heaters.
• Obstructions in, or unconventional vent pipe designs which
amplify the above situations.
2. Extended operation of unvented fuel burning devices (range/oven, fireplace)
3. Temperature inversions which can trap exhaust gasses near the ground.
4. Car idling in an open or closed attached garage, or near a home.
5. Poorly designed or maintained chimneys and/or vents.
Bedrooms. A major threat from poisonous
CO gas occurs at night when people are
sleeping. For added protection, CO alarms
can be installed in all sleeping rooms.
Living Spaces. To enhance safety, a CO alarm
can be located in the living spaces of a home.
Recommended Locations for your CO alarm
Recreation and Dining Rooms. For
additional protection, a CO alarm can be
located in the other living spaces of the
home.
Hallways. A CO alarm is required to be
centrally located outside of each sleeping
area, and on every level of the home.
If your hallway is longer than 40 feet, install a
CO alarm at both ends.
Basements. A CO alarm should be located
on every level of the house, including the
basement.
Exigent CO Manual 102913.indd 6-7 10/29/2013 7:44:54 PM