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How do you activate hot water systems?

Systems can be activated by an on/off button, motion sensor, thermostat or timer. Thermostats or timers automatically turn on the pump whenever water temperature drops below a set-point, or when the timer reaches a setting. Although these systems ensure that hot water is always available at the faucet without any waiting, they may use more energy than an on/off button due to more frequent recirculation cycles.

For more information, see and CUWCC Hot Water Articles