If all of the motel rooms were occupied 100% of the time every day of the
year, then yes it would be more economical to have a central system.

However sometimes only one or two rooms may be occupied. With the window
units, then they are only paying for electric for two rooms, not the whole
works!

So as occupancy goes up, energy costs go up in proportion. As occupancy
goes down, energy costs go down in proportion. For bookkeeping, real easy to
calculate the cost of each room.


"RJ" wrote in message

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