On Fri, 05 Aug 2005 23:13:03 GMT, "Edwin Pawlowski"
wrote:


"Nehmo" wrote in message
...
If a house currently has multiple window air-conditioners, are these
significantly less efficient than central air, if the house were
retrofitted with it?

I realize the comparison is complicated, so assume all other factors
equal, and assume: the vents and their position for central air would be
adequate; about half the rooms are normally in use; nobody's concerned
about the window-view obstruction, etc.; Chicago climate; poorly
insulated house.

If Chicago is as warm as I think it is, I'd go with central if possible.

Yeh, Chicago is famous for being **HOT** :-(

More efficient, quieter, more even temperatures in the house.

Where I live, it becomes marginal most years. Normal summer we need AC
maybe five to 8 days and maybe an additional 10 nights in just the bedroom.
That makes window units far more economical compared to running a big
system.

In warmer climates I'd never consider window units..


Click here every day to feed an animal that needs you today !!!

http://www.theanimalrescuesite.com/

Paul ( pjm @ pobox . com ) - remove spaces to email me
'Some days, it's just not worth chewing through the restraints.'
'With sufficient thrust, pigs fly just fine.'
HVAC/R program for Palm PDA's
Free demo now available online http://pmilligan.net/palm/