Swamp coolers provide one of the simplest and most cost-effective ways to stay comfortable in the heat. Also known as evaporative air conditioners, these machines take in warm outside air and ...

What is a swamp cooler? Also known as an evaporative cooler, this device—which is about the same size as a room air conditioner—lowers the temperature in a home simply by adding moisture to the air.

Which swamp cooler is best? When summer breezes get hot, and there isn’t an air conditioner available, a swamp cooler can help. Swamp coolers don’t provide the frosty chill of air conditioning, but ...