Energy Efficiency Case Study - Hot Water Generation and Distribution Systems

There are two options to compensate for the heat loss in hot water distribution pipes: using a temperature maintenance cable or a re-circulation pipe. Which option is more sensible from an energy point of view, when using a condensing boiler for hot water generation? A study by the Technical University in Dresden addresses the question of which option is more energy-efficient.The results presented show that a single pipe hot water system that compensates for heat losses with a self-regulating temperature maintenance cable is a better solution.