Our Technology

Taking a simple natural physical process to an unparalleled level of performance.
Our Secret

You’ve probably already experienced the cooling sensation of air touching your damp skin. Adiabatic technology harnesses this natural phenomenon, which occurs when water transitions from liquid to vapor.

Existing adiabatic systems take advantage of this effect in different ways: directly, by humidifying the air, or indirectly, without adding moisture to it.

Caeli Énergie’s technology is an indirect process that cools air far more effectively than any other adiabatic system—down to the dew point, the temperature at which condensation naturally forms. Our modules achieve a COP (coefficient of performance) between 10 and 20, depending on conditions—five times higher than conventional air conditioners.

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Caeli is a revolution ...

Why is our technology so unique ?

Made in France
While most air conditioners are produced in Asia under concerning social and environmental conditions, we've chosen to manufacture in France. Over 75% of our components are sourced within 400 km of our factory. This approach supports local employment and ensures our products are designed and delivered sustainably.
Unmatched Cooling Efficiency
Our system performs better as the outside temperature becomes hotter and drier, thanks to our unique adiabatic technology. In summer, the Eco mode is typically sufficient to maintain comfortable indoor temperatures below the thresholds set by the RE 2020 standard (26°C at night and between 26°C and 28°C during the day).
Energy Savings
Our devices consume minimal electricity, comparable to that of an internet box over a year—less than 40W in Eco mode and 80W in Boost mode. This results in electricity bills that are five times lower than those associated with traditional air conditioning.
No External Heat Emission
Unlike conventional air conditioners that continuously emit heat, raising outdoor temperatures by up to 3°C in some urban areas, our coolers release no hot air and require no external unit.
Eco-Design and Recyclability
All components of our devices are repairable and 100% eco-designed.
Easy Maintenance
A quick annual intervention on the cooling units ensures optimal performance. Our systems have no water drainage, eliminating the need for a lift pump, which simplifies maintenance and reduces potential failures.
No External Unit
Say goodbye to noisy, bulky, heat-generating external units. Our innovative technology eliminates the need for compressors or external units.
Guaranteed Free from Gases and Toxic Products
Unlike many air conditioners that use polluting gases like R32 (where each kilogram equals 675 kg of CO₂), our devices consume only air and water, nothing more.

... not a miracle

Pioneering eco-responsible technology comes with a sense of humility

We are committed to transparency in our continuous improvement approach.

Because there is still much to be done. Aware of our own limitations, here are the areas we are working on to enhance our positive impact on the environment:

What are the differences with direct adiabatic systems ?