Evaporative cooling guides

Practical explanations backed by government and university sources. Each guide links to the calculator that puts it into numbers.

• How evaporative cooling works
  Wet-bulb physics, direct vs indirect vs two-stage coolers, and pad types.
• Humidity, climate & ventilation
  Why coolers struggle in humid weather, which climates suit them, and how much window or vent opening you need.
• Diagnosing poor cooling
  A step-by-step check that separates weather limits from equipment faults.
• Pad maintenance & mineral buildup
  Scale, bleed-off, dump pumps, algae, and seasonal start-up and shut-down.
• Electricity & water operating costs
  What drives running cost and how to estimate yours anywhere in the world.