AWWA ACE65497

This powerpoint presentation begins by presenting the water-energy relationship of water use cycle energy intensities, California's water supply systems, regional differences, and water-related energy use in California in 2001. Statistics on hot water use are provided, along with a typical "simple" hot water system for single family or single unit applications, typical central boiler hot water system, and a typical hot water event. The hot water distribution system is presented with topics that include: How Much Water, Energy and Time are Wasted; Which Distribution System; Plumbing Layouts to Avoid; The Research; and, Improving Hot Water Distribution Systems. Drain heat recovery applications are presented.