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There's a higher cooling capacity one (12000btu) for $299 which might work better for a 400 sq. ft. room. I've got one of those, too. Sure, they don't humidify the air, and they cost more than a typical portable evaporative cooler, but they're exceeding good at cooling efficiently.
The evaporative cooler works in tent but honestly in those climates you're usually up in the morning when it is still cool. But sometimes temps sustain higher even in desert. Two problems though: here in Indiana during the summer, it's balls hot in the morning and we don't have a whole lot of higher elevation areas.
Definitely install an evaporative cooler however, I advise against putting it on the roof. I've been the subject of an evap on the roof. They're a PITA to maintain and since you should be changing the filters regularly (unless you get one with the thick media pads), you have to adjust the float, clean the unit, winterize, summerise, it needs a ...
Evaporative coolers work on the evaporation of water to cool the air. With humid air going into the cooler, little evaporation can occur. So, you're talking about putting an evaporative cooler in an enclosed room, with very little dry air entering and very little humid air leaving. Sounds like the recipe for a great simulacra of Atlanta.
It’s not to contradict - just to provide another person’s experience, in case you’re finding those portable AC’s don’t work well for your situation. Contrary to popular opinion, evaporative coolers - aka swamp coolers - do work in Seattle. We used a $600 portable AC during part of our apartment life for almost three years, up to this ...
I wanted push the cooling efficiency of my DIY evaporative cooler designs, so I designed and built a new one (Pic 1). And it works! - I'm seeing 95%+ efficiency . (Pic 2) In particular, today, I'm seeing 14 degrees of cooling from 75F / 45%RH to 61F / 95+%RH. (pic 3) On a 100F/10% playa afternoon this should translates to 16F colder than ...
According to this swamp cooler chart, at 80 degrees F at 80% relative humidity, you can drop the temperature 3 degrees. That isn't much and it would get more humid. Mold and mildew could become an issue. An exhaust fan on the wall may do more for you. Reply.
Evaporative coolers are dumping damp water into the interior. You also need to feed it a water supply. Easier to get something that needs more batteries which are easy to charge than have to keep the water topped off. They also have a limit.
So 3 big things if you go with evap cooling (which works really well and cheaply if you do it right in our climate). First make sure you get an appropriate size (big roof downdraft is best, window and smaller type units are near pointless). Second is airflow. You must open windows to direct airflow.
Researching different options outside of air conditioning for cooling. It seems evaporative coolers are best in dryer climates, but not sure what constitutes as dry. I come from a land of 50% humidity for most of summer. Wondering if anyone has tried one of these in their home. Just looking to cool a fair sized (around 150 square foot) room.