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Water-Cooled vs. Air-Cooled Units: What’s the Difference?

When selecting the right cooling solution for your commercial or temporary needs,

understanding the differences between water-cooled and air-cooled units is essential. At

Cold Air Rentals, we offer both options to meet diverse requirements.

Air conditioners cool the air by removing the heat with the evaporative coil. The unit transfers that heat to the condenser coil. The critical challenge for portable air conditioners is what do we do with that heat?

Water-Cooled Units

How They Work: The condenser coil resides in a reservoir within the unit. A water

supply is required to move water through this reservoir, removing the heat from the

condenser coil. The water entering the AC unit is cool, and the water leaving the AC unit is hot. The exiting hot water is sent down the drain and out of the building.


- High Efficiency: Great for continuous, large-scale operations

- Consistent Performance: Unaffected by high ambient temperatures

- Quiet Operation: Less noise compared to air-cooled systems

Ideal For:

- Industrial facilities

- Retail stores

- Banks

- Medical facilities

- Restaurants (specifically kitchens)

- Large commercial buildings

- Data centers

Air-Cooled Units

How They Work: Using ambient air to cool the condenser coils inside the unit,

ductwork is attached that allows you to direct and displace the hot air. An air-cooled unit is

quicker and easier to set up compared to water-cooled systems. An air-cooled portable unit also has a tank to collect condensation, which allows you to place a free-standing unit anywhere in your facility close to an outlet.


- Easy Installation and Maintenance

- Portability: Designed for easy mobility

- Cost-Effective: Lower initial setup costs

- Rapid deployment

Ideal For:

- Temporary event cooling

- Retail Stores

- Banks

- Medical Facilities

- Restaurants

- Office Areas

- Portable cooling needs

- Smaller commercial spaces

Choosing the Right Unit

Choosing the right temporary cooling solution is crucial to maintaining the comfort and

efficiency of your business. At Cold Air Rentals, we offer both water-cooled and air-cooled portable units to meet any need. Our expert team is dedicated to providing you with the best equipment and service to keep your operations running smoothly. Trust Cold Air Rentals to keep your business cool this summer with reliable, efficient, and tailored cooling solutions. Contact us today to learn more!


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