District heating is a remote heating service that allows heat to be transported from production plants to individual consumers through an extensive network of underground pipelines of hot or superheated water. Heat, in the form of hot or superheated water, is produced in modern power plants with state-of-the-art environmental and technological features. Through extensive underground pipe networks, the water reaches individual buildings and, instead of the old boilers, heats them, as well as being available for domestic hot water production.