Evaporitive/Swamp cooler

Well the Artic Air Tower was pretty useless.....the 12 volt fan I bought is really nice though.

How about this one? You can use it as a fan if/when the EVAP cooler doesn't work.

https://www.tractorsupply.com/tsc/product/frigidaire-2-in-1-personal-evaporative-cooler-fan-fec180wh00

Don't be fooled. We're not in the high humidity part of the year yet.

Check the wet bulb temperature not the dry bulb temperature. A swamp cooler can reduce the temperature to a number around 10 degrees above the the wet bulb temp. It can't cool below that because at that point your air will be at 100% humidity in the trailer and you'd have to condense water out to get it cooler, only an a/c can do that. 100 % humidity will be very uncomfortable when the temp gets up to the high 60s/low 70's.

So if you only want to cool in the spring when the humidity is still low ok but in the summer in the East not so much.



comfort zone

Not last long is right, maybe 40 lbs of ice to give 9000 btu of cooling, roughly an hours worth. And the air coming off it would be very damp.

I agree with you, hotel if it's really hot, not worth being miserable. But the fans blowing on
you will keep you feeling comfortable for about another 10 degrees or so, we use them a lot in the summer.

If it was dry enough to work (which it won't be where we live) it would use roughly a gallon of water an hour to cool the trailer equivalent to a 9000 btu/hr a/c. You could go through your whole fresh water tank in a day.

You should be fine in Maine in June. You can get a couple of 12v fans to direct where you are sitting or sleeping. That's what I do. You need a 12v power port, a 12v wye, and extension cable or two. Here's what I use:


fan

If you get unlucky and run into really hot weather find a campground with ac hookups and run the jet turbine mounted on your roof.