It occurs to me that
every motel I've ever stayed at ( 20 200 units )
always uses a "window unit" for cooling.

Seems like it would be more economical
to have one central unit, and circulate chilled water
to heat exchanger in the rooms.

Anyone have any insight here ?

On the other hand,
I've got a neighbor who opted for window units
instead of having central air installed in his house.
He saved a bundle ! $300 vs $3000
And, he claims his electric bill is alot less too.

????
rj