REHAU’s RAUGEO geothermal ground-loop heat-exchange systemsexchange energy with the earth to heat and cool at a fraction of the operating costs of traditional HVAC methods, with potential energy savings up to 70%. REHAU RAUGEO PEXa piping offers superior flexibility and abrasion resistance compared to conventional HDPE geothermal systems, while prefabricated double U-bends require up to 30% less borehole footage than a single HDPE U-bend.