The Care and Feeding of a Swamp Cooler by W. E. Lopez What the heck is a swamp cooler is usually the first question asked by folks who have never been out west, and have never seen an evaporative cooler in operation, as soon as they hear the term mentioned. For a while, I taught air conditioning and refrigeration at Riverside Community College, in Riverside, California. In many western ...

How a swamp cooler works ...