Homeowners Page

I have an evaporative cooler in my house, it doesn't seem to cool the house the same as my neighbors, their's is always cooler than mine. I don't understand why, I even keep all the doors and windows closed and they don't.

Rick Paschall, Service Manager
Atlantis Cooling & Heating

First of all I want to assure you, you are not alone , we find this scenario more frequently than you might expect, mostly from our friends who have moved here from out East. It is important to under- stand how evaporative coolers work. Hot outside air is pulled into the cooler through wet pads, this causes some of the moisture in the pads to evaporate, cooling the air down as the heat energy changes the water from liquid to a vapor state. This air then is introduced into the home through the duct system moving cooled air mixed with moisture to each room in the house, displacing the hotter air inside, typically every 2-4 minutes. this works relatively well as long as the dew point temperature is much lower than the ambient temperature. When the dew point rises (monsoon season) it becomes harder to bring the temperature down to a comfortable level. Because the cooler is drawing it's air from the outside, it is important to relieve that air back to the out of doors via opened windows or screened doors. When the house is shut up tight, the air from the cooler is minimized to the amount of air that can escape through the cracks, i.e. walls, windows, doors, and believe it or electric and plumbing openings. This would of course minimize the displacement of the hot air already in the house. Net result: Higher temperatures than one would expect, higher humidity (that sticky feeling) and in extreme cases, the growth of mold where there is little or no air circulation, i.e. clothes in the back of the closets, stacks of newspapers in the corner, etc. In conclusion, to make the cooler work most efficiently, open windows in each room to allow proper air circulation!

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