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.

Evaporative coolers can work wonderfully well, provided the outside air they are drawing in is dry and desert-like. However as the humidity increases, the ability for them to cool the air effectively decreases.

Whether it is for a single room or a whole house, there is a simple formula for determining the proper size of evaporative cooler you need. Figure the cubic feet of space you want to cool, and then divide that number by two. The quotient will give you the CFM rating for the proper-sized evaporative cooler.

Select if:

• You are adding or replacing a whole house evaporative cooler.
  And / or...
• You require an evaporative cooler that has the capacity to cool your entire home.
• Your evaporative cooler will be installed on the roof, and blow air down into the home.

Select if:

• You are adding or replacing a portable evaporative cooler.
  And / or...
• You would like to cool one room or a small area.
• You would like to be able to move your evaporative cooler.

Select if:

• You need accessories for an evaporative cooler such as evaporative pads, salinity managers, or controllers.