U.S. Department of Energy Energy Efficiency & Renewable Energy U.S. Department of Energy Energy Efficiency & Renewable Energy

Attributes of Demand-Initiated Recircuculation Systems

Question: 

Demand-Initiated Recirculation Systems

A.  Consist of one continuous hot water supply loop that recirculates water throughout the home.

B.  Save water because they can reduce the wait time for hot water and return ambient-temperature water stored in the piping back to the heater.

C.  Are considered energy-inefficient.

D.   Are energy-efficient in large homes.