Will it shock you if the area near a waterfall is cool even on a hot summer afternoon? This phenomenon is much more commonly called evaporative cooling. The air temperature around the waterfall decreases like the water evaporates. Swamp coolers make use of a similar mechanism to cool homes. Roof mounted swamp coolers absorb heat from the environment through evaporation of moisture. The less hot absorbs water from fresh air into specially designed pads which are soaked with water. The air is then cooled by evaporating a tub filled with warm water and circulated into the home or maybe office space.
Swamp coolers are typically mounted on roof tops as it's a lot easier for the blower to push air through a down-discharge cooler. They use lower electricity compared to the more traditional air conditioners. Swamp coolers don't use refrigerants such as chlorofluorcarbons (CFCs) as well as hydrichlorofluorocarbons (HCFCs), which might result in destruction of the ozone layer. They don't require the windows and arctos portable ac btu rating - check out this one from www.kirklandreporter.com - doors being closed to maintain the room cool. It pumps in air which is fresh into the home and replaces the majority of the air that leaves the home.
Rooftop coolers do not take up unneeded space on the floor. Nevertheless, you will find some difficulties with a roof mounted cooler. Like all coolers they are inclined to leak water with some time that deteriorates the framework of the cooler and also the roof also. To keep cooler you are going to have to get onto the roof. Ground or even wall mounted coolers face similar issues but are a lot easier to handle in that level.