What is an Evaporative Cooler?

New For the 2011 Summer Season, Party Line Rentals would like to introduce our Brand New Evaporative Coolers! What is an Evaporative Cooler?
An evaporative cooler produces effective cooling by combining a natural process - water evaporation - with a simple, reliable air-moving system. Fresh outside air is pulled through moist pads where it is cooled by evaporation and circulated through a house or building by a large blower. As this happens, the temperature of the outside air can be lowered as much as 30 degrees.
How does it work? Evaporative cooling is the same process your body uses to cool itself. When you perspire, and air moves across your skin, a portion of the perspiration (water) evaporates. Evaporation requires heat to change liquid water-to-water vapor and this heat is taken from your skin, producing the cooling effect. In an evaporative cooler, the cellulose cooling pads take the place of your skin, water instead of perspiration wets them and a fan moves the air. The air is drawn through the cooling pads and evaporates moisture. Heat is removed from the air, as it is drawn through the wet pads, dropping the air temperature and producing the cooling effect. The cooled air is then forced through a building or space and displaces the warm air out building openings, cooling the surroundings. In addition, air velocity increases the cooling effect as it moves over the skin or people in the airflow path. Why Choose Evaporative Cooling for Your Event? Thanks to a new awareness of energy efficiency, evaporative coolers are achieving a new popularity. Remember, our coolers use as much as 75 percent less electricity as air conditioning does. The Sacramento Municipal Utility District estimates the electricity savings at approximately $150 a year. Because the technology is simpler, an evaporative cooler costs about half as much as an air conditioner that will cool the same sized area.  For perspective, a quick check of the Internet in July 2001, found units capable of cooling 750 square feet that were priced as low as $275. Installation costs of swamp coolers are comparable to air conditioning units. Evaporative coolers operate on 120-volt electricity, which means they don't need special high-amperage circuits like many air conditioners do. A swamp cooler can be plugged into a nearby outlet. Many people appreciate the fact that evaporative cooling adds moisture to the air, which helps to keep wood furniture and fabrics from drying out. The moist pads through which the outside air flows are also fairly efficient air filters, trapping some dust and pollen. Since the pads are continually wetted, trapped particles are flushed out and trapped in the bottom of the cooler. Air conditioning works best when the windows are closed, since interior air is cooled and recirculated. Because swamp coolers cool outside air and blow it into the tent, they work great outside! The cooled outside air vents through open windows or doors, pushing out hot inside air and any smoke, odors and pollution that may be present. With evaporative cooling, a complete air change in a home occurs every one-to-three minutes. This flow of fresh air means that evaporative coolers can be operated without using the water pump to replace warm stale air with cooler nighttime air, much like a whole house fan does. That's an added benefit. For the most part, evaporative cooling doesn't require as much ductwork as air conditioning which can save you alot of money. For a newly installed system, a short duct can direct the cooled air to a central point in the house. From there, air can be directed through the various rooms by simply opening and closing doors and windows to allow the cooled air to flow. Come In To PartyLine Rentals today to order yours today!