A/C Condenser Evaporative Cooling Assist

pianotuna wrote:

dclark1946 wrote:

pianotuna wrote:
Chum lee,

Where I live--I do on occasion run a humidifier in my RV. But never in the summer. Our relative humidity goes from 4% to 84% on a yearly basis.

Even with our relatively low humidity I found the swamp cooler I bought, rated for 500 square feet, did just about nothing for the 241 square feet in my class C.

Here is the one I was referencing: https://www.turbokool.net/product-p/2b-0001-turbokool-swamp-cooler.htm

They don't share the picture--how odd of them.

Did you open a window to allow the outside air pulled into the evaporative cooler to push the trailer air outside? These systems are commonly used for interior cooling in dry climates where the cooling is greater and increase in interior humidity is a desired benefit. We used evaporative cooling in Dallas when I was a kid with cooler pads in three windows and a centrally located attic fan that pulled outside air through the wet pads and exhausted interior air out through the attic.

Hi,

The unit I purchased is a "stand alone" device that recirculates the air in the room. It did lower the temperature of the out put air--but there was too little cooling going on to keep up with the sun--even thought I had purchased something that was supposed to be good for double the area I was attempting to cool.

I thought you were referring to the rooftop RV evaporative cooler where you would keep a window open for proper operation. The reason your cooler did not work is because it kept raising the interior humidity level to the point that very little evaporative cooling could occur. These coolers only work when you have a continued fresh supply of outside air.