When the hot water pipes between you and your NPE-A heater cool down, the water inside cools down too. When you turn on your hot water, you feel that unpleasant cooler (or cold) water. Recirc pumps keep the water hot. But they use energy.
HotButton solves this problem. When you push the HotButton button, your NPE-A unit's internal recirculation pump and gas-fired burner activate to heat up the water in the supply lines. In moments, that cold water is gone. You won't need to run the water until it gets hot. This saves you water and money.
• Activate the NPE-A series pump with a remote switch• Provides on demand recirculation• Requires a recirculation pipe line• Compatible with NPE-A series tankless water heater models (NPE-180A, NPE-210A and NPE-240A) with PCB version KDC-330-5M P20 and newer• Not compatible with:- PCB version KDC-330-5M P12 (installed in older NPE units)- cascading, multi-unit installations