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Rich wrote:

wrote in message

Charles Spitzer wrote:

AZGuy wrote:

...If you are adding an Evap to a house that originally had AC you
may
have a hard time pushing 5000 cfm thru the ductwork

Perhaps the OP meant "500 cfm."

Still wondering how to push 5000 cfm through a 14" duct (at 54 mph :-)

That is probably to feed two or more rooms. The outlet of the cooler is
probably 18 x 18 inches (324 sq in). Run that into a plenum and then feed
two or more of the 14" ducts.

Regardless there is still a significant amount of air being moved. That is
the whole principal of a swamp cooler. You have to provide adequate exhaust
too by keeping windows open. You open windows in rooms you want cooled..
For a single outlet unit such as a window mount it can get downright cold in
the room it is installed.
Note in the following chart if the humidity is 10% and the outside
temperature is 85 degrees the outlet temperature will probably be about 63
degrees.
http://kesq.com/Global/story.asp?S=1316062