ELFO is the air-cooled invisible air conditioner that protects the facades of buildings because it does require external installation.
Particularly suitable in historical centers (but in general where there are problems of outdoor installation) ELFO also in this case solved the problem of air conditioning in an ancient building in the center of Rome: Palazzo Torlonia is a 17th century building located near Piazza di Spagna, and the installation of external air conditioners is categorically prohibited.
Tekno Point has solved the problem of air conditioning in the building's server room with two ELFO trials that work alternately. The machines serve a total of 6 ceiling boxes, guaranteeing a constant temperature in both summer and winter. In the case of this specific installation, it was not necessary to drill the wall because the two ELFs exchange air through a wooden shutter located on the second floor of the building: the result is completely invisible to the outside!