National Cooler

National Swamp Cooler specializes in commercial swamp cooler service, maintenance and repair. We also provide new unit change outs and cooling towers. In the 1920s residents living the dry, desert climates of the Southwestern US would regularly sleep on screened porches during the summer months. They learned that by soaking blankets in water, hanging the blankets over the screens and using fans, hot, dry air from outside could be pulled inside and cooled by as much as 30 degrees. This discovery of natural evaporative cooling inspired the development of machine evaporative cooling systems, or swamp coolers.