Thermal Springs

If you move from the earth’s surface into the depths, the temperature rises by 3°C every 100 m. In some places of the earth, called 'geothermal anomalies', it may be considerably hotter.

So it is possible that warm or hot water already occurs in the relatively low depth of about 500 to 2000 m, which comes to the surface through clefts and cracks in the earth’s crust as thermal water.

Hot springs have been used for bathing for a long time already. Already in 1500 BC, there existed a walled-in thermal spa on the isle of Lipari in Sicily.

Usually, the water is enriched with minerals, and was always used for curing various diseases. Today, numerous health resorts all over the world advertise the advantages of their healing springs.

Thermal springs are not only used for bathing and healing, but also for energy production, for example for heating a house.