The Buderus SKN4.0 represents the latest generation of solar thermal collectors for environmentally friendly heating support and domestic hot water preparation. For the first time, a one-piece SMC plastic housing is used, which leads to a particularly elegant and slim appearance. Integrated recessed grip elements as well as reduced weight improve the handling during installation. A unique mounting system which visualizes the correct mounting position by colored indicators is an innovative highlight. The absorber sheet is accentuated in design by the ultrasonic welds. The surface itself is stabilized by embossed spherical segments.