The NRCP line of residential tankless water heaters from Noritz have a circulating pump inside, which keeps hot water close to the outlet. This setup minimizes the wait for warm or hot water and the waste of unused potable water down the drain. Homeowners can program the recirculation system to operate only when needed by using the digital display system on the front of the water heater. The auto setting allows the system to learn the household’s water-usage routines, letting the system automatically control the recirculation loop activation times.
August 24, 2015