Benefits of Evaporative Coolers

Many people favor evaporative coolers during the early and late summer months in Arizona. They are a great way to cool your home when it’s 80-110 degrees outside. The only real drawback is that they don’t work too well on those high humidity days during the monsoon season. I recommend having an AC as a primary way to cool your home, but having a evap cooler is a wonderful way to help alleviate the steep electricity bills that summer can bring.


The main reason evap coolers are so much cheaper to run than air conditioners is that they only have 1 motor. While most AC’s have 2 motors and a compressor. Most amps are drawn during the startup of the compressor. It is equivalent to stop and go traffic in the city or non stop high way traffic.

Evap coolers use convection to transfer the heat from the outside air to the water that is falling across the pads. They can drop the temperature 25 degrees or more. The higher the humidity in the outside air will cause the cooling efficiency to decrease.

Proper maintenance on swamp coolers is crucial if you expect them to last more than the first season of operation. They are relatively low cost to maintain. If you do it right then you should only have to inspect and maintain your swamp cooler twice a year. Usually done before and after summer. I recommend doing a pre summer inspection during early spring. In Arizona I recommend to start getting your swamp cooler ready in February. I recommend winterizing it before snowfall or if you experience freezing temperatures where you are located.

Several things to take a look at when inspecting your evap cooler. - shop now!

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