The Therm-Liner modules are produced by us at our headquarters in Geisingen on the Danube. They are made in Germany and patented and certified. Every Them-Liner system is made to measure for the project in question, since the framework conditions vary in every sewer. These framework conditions are considered in every plant layout and clarified in an inspection of the sewer network during the planning phase. In addition, for the sake of safety, both the volume and temperature of the wastewater in the sewer in question are measured again beforehand over a long period of time. This ensures that the plant performs efficiently. The data from the sewer network operators, which are always accurate, are thus verified.