Guide To Evaporative Swamp Coolers

Estimated read time 3 min read

Evaporative coolers, also called swamp coolers, are an eco-friendly and economical way to cool indoors and out. They can be used to quickly cool off garages.

These topics should be considered before buying one.

Evaporative Coolers And Their Benefits

Evaporative residential air coolers utilize the natural process of air cooling by evaporation. Warm, stagnant air is drawn into a cooler. The cooler passes the air through water-saturated medium pads. This cools and adds moisture before it is released into your space. They can cool the air to as low as 33 degrees F.

Evaporative Cooler Benefits

Why is evaporative cooling better than other cooling options. There are many advantages to using evaporative cooling.

  • Cost-Effective Cooling

Evaporative coolants cool the air. Traditional air conditioners used compressors and refrigerants which increase energy bills. Swamp coolers cost only pennies per hour and use water and a fan to cool your space.

  • Light-Duty And Mobile Design

Evaporative coolers are built to withstand harsh conditions, such as garages, warehouses, and patios. These coolers can be easily moved by heavy-duty tires.

  • Doubles As A Commercial Grade Fan

Some evaporative cool can double as heavy-duty fans indoors and out (when used with no water).

  • Adds Moisture In Air

The evaporative cool process naturally humidifies dry, dry air. This reduces dry symptoms like itchy skin, throat, or eyes. This process does not require water droplets to be dispersed by misting fans.

Best Environments For Evaporative Fans

If used in semi-outdoor or outdoor spaces, swamp coolers offer efficient and effective cooling. They can also work indoors in hot, dry conditions. Read on:

  • Outdoor Applications

Evaporative coolers are the ideal outdoor cooling solution for any environment. They instantly add coolness to the surrounding environment.

Common applications include tailgating on decks and backyards with patios.

  • Semi-Outdoor Applications

Evaporative coolers are great for outdoor spaces, no matter the humidity. These coolers’ heavy-duty design and instant cooling make them ideal for garages, covered patios, workshops, and kennels as well as stables.

If you use your cooler in garages, be sure to open the garage door slightly.

  • Indoor Applications

Evaporative coolers can be used indoors. However, they are best used in very hot and dry environments. They are not recommended indoors for humid climates. You will need to have fresh air, such as through an open window when you use them indoors.

  • Industrial & Business Applications

Evaporative coolers can provide cooling comfort in many commercial spaces. They are often found in warehouses or commercial event spaces.

  • Other Indoor Cooling Options

Consider portable or window conditioners for those who live in warmer climates.

Evaporative Cooler Sizing

The right size evaporative cooler will give you the best results. An evaporative cooling unit that is too small for your space will require extra effort to keep it cool. This can result in wasting energy.

Cubic feet per hour (CFM), or the fresh air you get through your environment in a minute, is what you refer to.


Evaporative cooling is a low-maintenance option. These are three important points to keep in your mind:

  • Basic Care

You can wipe down the exterior of the portable swamp cooler with a damp cloth if necessary.

  • Replacement And Cooling Media Cleaning

To prevent dirt, mold, and mildew from building up, the evaporative materials should be cleaned at a minimum once a month using lukewarm warm water and mild detergent.

You may need to replace the media, depending on what model you have. A disinfectant oil is recommended if you notice any mildew or mineral buildup.

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