How Many Evaporative Air Coolers Do I Need? Planning Floor Areas Correctly

The question "How many units do I need?" cannot be answered in general terms. However, the floor area figures from the data sheets and product pages give you a good first indication.

Starting values

• Y5: 40–60 m²
• Y15: 100–150 m²
• Y20: 150–250 m²
• Y30: 150–250 m²

Simple worked examples

The examples are a rough guide, not a plan. Room shape, ceiling height, heat load and ventilation all play a role.

• Small shop of 50 m²: a Y5 is within the stated range.
• Dining area of 120 m²: according to the product page, a Y15 covers this size.
• Workshop of 200 m²: a Y20 or Y30 covers this size according to the specification.
• Hall of 500 m²: several units come into question here. See also Hall cooling.

What else influences the number

1. Heat sources: machinery, ovens or strong sunshine increase the requirement.
2. Air exchange: well-ventilated rooms cope better with evaporative cooling, see Evaporative air coolers and humidity.
3. Workstations: if specific zones are to be cooled, placement matters more than floor area alone.
4. Usage: continuous operation or peak times only.

Frequently asked questions

Is more floor area per unit possible?

The figures are guideline values. If you go to the upper limit, you should assess the effect realistically.

Can I mix models?

Yes, depending on the room this can make sense. More in the model comparison.

Conclusion

The manufacturer's figures set the framework, and the room situation settles the details. Feel free to send us your floor area and intended use, and we will advise you personally.