April Aire Humidifier Installation Question
"Joseph Meehan" wrote in message
The sensor tells the unit how cold it is outside. When it gets very
cold line -20º you don't want the interior humidity to be as high as you
might want it when it is say 40º. If you tried to maintain 60% humidity
when it is -20º outside, you would tend to get a lot of moisture freezing
on windows, condensing in wall insulation etc.
You go Joe :-)