Recirculated air

[John Hofstetter <hofs@domain.elided>]

>Steve:
>
>Combine your two statments, and that's how many modern cars take care of
>the humidity problem in the winter when your running the heater; that is,
>they run the A/C too! The hot, humid air is recirculated to the A/C
>expansion unit and the sudden temperature drop makes the moisture drop out
>of the air and go out through the drain. Then, the now cool air is heated
>across the heater core and sent back into the cab.
>
>Tom H.

Speaking only for the cars that we've had, the humidity control has 
always worked a lot better with at least some fresh air entering the 
system. Not criticizing your theory, Tom, just the practice. By the way, 
greetings and best wishes for the season.
John Hofstetter