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U.S. Department of Energy
Office of Scientific and Technical Information

Potential for energy savings through reductions in hot water consumption

Technical Report ·
OSTI ID:7355558
America's patterns of heated water use are investigated. The report estimates the energy savings obtained from various methods of using hot water; it evaluates the economic, social, and institutional problems involved in using hot water, and makes recommendations for legislation concerning hot water consumption. This study sets forth some of the many possible techniques for conserving hot water. Implementation in some cases requires changes in building codes and/or new legislation. The report also estimates energy savings that would result from the more promising energy conservation measures proposed. The topics discussed in this report include the following: use patterns of heated water; water heaters, their efficiency, how heat loss can be reduced, reduction of tank size, and complete electricity/gas shut off for periods when the home is unoccupied; how piping heat losses can be reduced by insulation, reduced pipe size, lower heater thermostat setting, and by combining hydronic space heating systems with domestic hot water systems; how hot water use for showers can be reduced; and how appliance efficiency can be improved. (39 references) (GRA)
Research Organization:
Federal Energy Administration, Washington, D.C. (USA); Federal Energy Administration, Office of Energy Conservation and Environment, Office of Analysis, Evaluation and Systems Studies, Washington, DC 20461
OSTI ID:
7355558
Report Number(s):
PB-247370
Country of Publication:
United States
Language:
English