Evaporative Cooling Pad Myths and Facts

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Date: 
2009
Volume: 
21
Number: 
7
Tip Category: 
Evaporative cooling
Hot weather management

There are a number of misconceptions about the operation of evaporative cooling pads that can result in warmer birds and reduced pad life. The most common of these are:

“A pad produces the most amount of cooling just before it dries out.”
“Water running over a pad reduces the cooling produced by the pad.”
“Cooling is improved by operating a pad system off a ten-minute interval timer.”

The primary reason for these misconceptions is a basic misunderstanding of how an evaporative cooling pad actually reduces the temperature of the air entering a house during hot weather. Once someone has a clear understanding of what is really happening when they pull hot air through a wetted pad, it becomes fairly clear how best to operate a pad system to achieve maximum bird cooling.