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Old 07-23-2016, 05:52 PM   #1
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AC versus Evaporative coolers

Has anyone added a portable AC unit or a evaporative cooler? What are the pros and cons on either? What about evaporative cooler units effectiveness in the east and SE?
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Old 07-23-2016, 06:00 PM   #2
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An evaporative cooler works only in drier climates. In a damp climate, the wet bulb (WB) temperature is too high which means you have a lot of moisture in the air. With a high WB temperature, there will not be sufficient water evaporated to provide any cooling effect.

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Old 07-23-2016, 06:07 PM   #3
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So I should be looking for a portable air conditioner then. If so Has anyone have suggestions on makes and size etc. thx in advance.
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Old 07-23-2016, 06:13 PM   #4
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AC versus Evaporative coolers

I tried the portable AC unit that exhausted the heat out a duct and blew cool air into coach. Unfortunately, I did not see much benefit and finally concluded that the hot air it produced being exhausted was having to be "made up" with hot air drawn into the coach from outside. IOW, there was little temperature difference inside and all I had was more noise and less space.
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Old 07-23-2016, 06:35 PM   #5
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Any suggestions on portable AC units?
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Old 07-23-2016, 06:53 PM   #6
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The higher quality portable air units have 2 ducts to the outside, one pulling air through the condenser coil and then exhausting it back to the outside. None of the portables have much capacity. Why not just add another roof unit and jet more cooling for the same power consumption?
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Old 07-23-2016, 11:10 PM   #7
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Quote:
Originally Posted by Moco View Post
Has anyone added a portable AC unit or a evaporative cooler? What are the pros and cons on either? What about evaporative cooler units effectiveness in the east and SE?
Treeman47
If there is humidity, you don't want an evaporate cooler. My son has his toy box at a job site in the desert temporarily and only has 1 roof air, and it's struggling when it's 105++. He bought the portable type with a duct hose running out side but wasn't effective enough. He returned that and bought a window unit to hold him over this summer and it works fine. (Looks like hell though)
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Old 07-24-2016, 03:08 AM   #8
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Lived on the Mojave desert and swamp coolers were all anybody used. Worked great. As others have pointed out, in hi humidity, pouring bucket of water over yourself would have the same effect. jus sayn
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Old 07-24-2016, 06:50 AM   #9
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evaporative coolers versus portable air conditioners

Thanks to all for your responses A lot of good advice to consider.
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Old 07-24-2016, 08:27 AM   #10
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Don't waste your money on a water swamp cooler, they have gone the way of the DOH DOH bird. Just get regular roof ac unit, new ones are very energy efficient. by the time you cut holes, run water lines, deal with leaks, change windows, build stuff, the roof top units will be about the same amount of moola. I've had both, live in the desert, full timed and had to give away a couple of water coolers.


The good thing about roof air units is that they pull the cool air from the inside of the rv and re-cool it thus working faster and more efficiently. Trick is getting one that is big enough to cool the entire RV.
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