Ancient water harvesting structure utilizing condensation, Trans-en-Provence, France.
An air well collects water by promoting the condensation of moisture from the air. Evidence of air wells has been found in the Byzantine city of Theodosia, and there are three methods that have been used to create the condensation necessary for the production of useful quantities of water. High mass collectors are air wells that use the benefit of constructions with a thermal mass to create temperature variation suitable for the production of condensation. Continue reading