King Electric White Programmable Thermostat

The HWP (hot water) series programmable thermostat was intended for use as a 2 circuit thermostat controlling a circuit pump and fan on a hydronic coil heating system though it could be used when needing a 2 circuit control with 1-minute delay on the second circuit. This control solves the historic problem of using a standard 22 Amp bi-metal heating thermostat on a hydronic system which requires high Amp loads to be accurate. Without a load they will not shut off properly continuing to