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