Evaporative (Swamp) Coolers - Research

Evaporative or swamp coolers are an energy efficient alternative for cooling air during a summertime heatwave. They work on a simple principle: when water evaporates, it takes a little bit energy (heat) away with it. This creates a cooling effect like the one we experience when our sweat evaporates.

Evaporative or swamp coolers use this cooling effect to create and distribute cool air in a room or home. However, as those on the U.S. East Coast know only too well, evaporative cooling doesn't happen when the air is already saturated with water vapor--a condition we call high humidity. And high humidity doesn't just occur outside; a home, room, or even the inside of a car (during an amorous escapade) can become highly humid. Because of this, rooms cooled by evaporative coolers need to be well ventilated. Without ventilation, evaporative coolers will turn your home or room into a humid sauna. Below are more tips and info...

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