The Iso-technik system presents, on a conceptual level, a structure similar to the traditional solutions used in district heating networks: a service pipe in which the vector fluid flows with a maximum operating temperature of 90 ° C, surrounded by an insulating layer of foam polyurethane, all enclosed within an external protective sheath in high density polyethylene.

Compared to this scheme, the main innovation consists in the replacement of the metal service piping with a piping in thermoplastic material, PP-R 80 Super multilayer with a fiber-reinforced composite matrix (PPRFV).