AZjeff
$50 Site Donor 2023
A cooler works well when the humidity is low but the difference between outside air temp and coolered air temp decreases as RH increases. After a summer thunderstorm when the temp spikes back up and it's really humid out and you really need cooling you don't get it. After 2 summers of only a swamp cooler I stopped putting water in it and only ran the blower early in the morning to draw in cool air then shut it off and used 2 window shaker AC units. Better than nothing at all and cheaper to run but there are multiple reasons they aren't standard equipment on new houses.The search implied very little difference between a swamp cooler and a air conditioner.
This is what's in a swamp cooler. To keep one running properly you're on the roof at least once a month.
@GON, I'd love to hear your thoughts after a season with a swamp cooler in Arizona. And your wife's thoughts.