I lower my shop from 101-78 on hot days using a fan and water mist.
This one works by compression just like all refrigeration cycles.
Also in the past a window ac might run as much as $75 per month for one room. If you remove the sensor bulb wire from off the front of the rooms evaporator radiator and use the 2hr digital off setting you will save 4 times. The problem with ac today is that they pop on and pop off every 5-8 minutes which the start ups cost your 4x more. I have 2 bedrooms (18x18ft) running at $15 per month 75degrees day and nite, because I know what to do.
When an AC turns off with a thud and turns of with a rattle you have high head pressure. To run a 5000btu all month for $15 you need to bring the room down to 65 degrees never allowing the AC to cycle on and off and leave it run 2 hrs whether you like it or not

I have a new LG window AC 24,000btu monster cost me $300-350 per month until I removed the sensor away from the radiator in front.It turned off every 5 minutes and turned back on in 3 minutes. Now it never cycles, I turn it off by digital timer every 2 hrs. I pay $70 per month for the whole main floor
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