Window shakers come in assortment of efficiency. But, overall, I believe
that central AC is more efficient.

Please ask your installer for:
* Rotary compressor
* TXV coil

Expect to pay a couple dollars more than a piston compressor and orifice
coil. But, will pay for itself in efficiency.

--

Christopher A. Young
Learn more about Jesus
www.lds.org
www.mormons.com


"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.

A companion question is, does the efficiency of air conditioners
increase significantly with size?

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|||||||||||||||| Nehmo Sergheyev ||||||||||||||||