Solid state thermostat

摘要

An apparatus for controlling a heat source of a hot water system includes a power circuit for selectively providing power to the heat source, the power circuit having an ON state wherein power is provided to the heat source and an OFF state wherein power is not provided to the heat source; a sensor for sensing water temperature of water in the hot water system and for operating the power circuit in the ON state when the water temperature is below a set desired temperature; and elements, operatively associated with the power circuit for modulating the power circuit whereby overshoot of the water temperature above the set desired temperature is inhibited.