Joseph Meehan wrote:
I have heard this one both ways. While I would think that most
sources
of CO will be be heat producing sources and as such the warm air
would force
the CO to rise quickly. CO is lighter than air and will tend to
rise.
I have had one personal encounter with CO. In that case the CO
concentrations were decently greater at five feet than at four feet
and
greater at four feet than one foot. We had a number of people. Many
sleeping on the floor, some sitting upright, some standing. Those
standing
where first to be effected and suffered the most during the next few
days.
Those sitting also experienced problems, but not as severe. The
first
couple who were sitting stood up and were quickly effected. The
others
seeing that did not stand up but got to their hands and knees and
were less
effected and were able to help the others and alert those sleeping.
In the
end there were no lasting injuries.
I have mine mounted about five foot up just outside the bed room
area on
the second floor and another mounted at outlet height on the first
floor.
BTW the one upstairs is of a new design and can record and
display
levels that are too low to set off the alarm, but may be a good early

warning. Joseph Meehan


Hi. Thanks for your help. After looking at a number of different CO
detector models, it appears as if the differences in price amoung them
tend to reflect how sensitive the detectors are at detecting lower
parts-per-million levels.

I understand that some posters here think I'm merely responding to
advertising, but this past winter alone, I've heard of several
instances of local residents dying when animals took up residence in
their chimneys, which prevented CO from escaping. I need to put a
wildlife cover on the chimney, but I've been told the chimney needs to
be repaired first. Drilling into it now will probably cause it to
crumble. A few years ago, the co-worker of a friend of mine died from
CO poisoning while flying in his airplane. These things happen. While
they may happen with much lower frequency than other accidents, like
automobile accidents, I would rather be safe than sorry.