<!doctype html public "-//w3c//dtd html 4.0 transitional//en"> <html>   "Larry J. Messerly" wrote: <blockquote TYPE=CITE>" You are sitting in your house and get to feeling to  warm so you turn on the airconditioner which takes the outside air as it is...  humdity and all and cools it down while pumping it around inside your house." Dear List, I disagree, Air Conditioners do NOT remove moisture from the air.</blockquote> Gesshhhh... I DO wish people would read a bit more carefully before they let there fingers start rolling... I NEVER said that the air conditioner removes moisture from the air. What I said was that Cooling the air raises RH unless there is some force acting on the air to remove moisture during or after the process of air cooling. Now the fact is that many airconditioning installations DO remove moisture from the air as part of the process of cooling the air. Tho not all do. Just check out a few of the web sites from folks selling this kinda thing to see the variety of installations available. <blockquote TYPE=CITE>  Pray tell, unless you have an air handler system as is used in large structures to keep the air fresh, HOW are you getting that air into your house to cool.  Most air conditioners I know just cool and recirculate the air already in the structure.  Absolute Humidity remains the same, relative humidity rises.</blockquote> This statement is entirely and perfectly correct. <blockquote TYPE=CITE> That's why in Phoenix (and I presume elsewhere) air conditioned air is good for pianos.</blockquote> This kinda depends on how much it goes up.. and what the starting AH is dont it ? Phoenix is a dry place is it not ?? Algona Iowa is like not dry. But very warm in the summer. Can be a problem. <blockquote TYPE=CITE>  Larry Messerly, RPT Prescott/Phoenix</blockquote> -- Richard Brekne Associate PTG, N.P.T.F. Bergen, Norway  </html>