Does it surprise you if the area near a waterfall is great even on a hot summer afternoon? This phenomenon is more ordinarily called evaporative cooling. The air temperature within the waterfall minimizes as the water evaporates. Swamp coolers use a similar mechanism to cool homes. Roof mounted swamp coolers absorb high temperatures from the earth through evaporation of moisture. The cooler absorbs water from air flow into uniquely created pads which are soaked with water. The environment will then be cooled by evaporating warm water and best portable ac cheap (visit their website) circulated in to the home or office space.
Swamp coolers are typically mounted on roof tops as it is a lot easier for the blower to push fresh air through a down-discharge cooler. They normally use lower electricity than the more conventional air conditioners. Swamp coolers don't use refrigerants like chlorofluorcarbons (CFCs) and hydrichlorofluorocarbons (HCFCs), which may cause injury to the ozone layer. They don't need the windows and doors being closed to maintain the kitchen cool. It pumps in fresh air into the home and replaces almost all of the air that leaves the house.
Rooftop coolers don't take up unnecessary area on the floor. Nevertheless, you will find some difficulties with a roof mounted cooler. Like all coolers they are inclined to leak water with a period of time which deteriorates the framework of the top as well as the cooler too. To maintain the cooler you will have to climb upon the roof. Ground or even wall mounted coolers face similar issues but are a lot easier to handle in that level.