Apparatus for conserving electrical energy

Apparatus for automatically controlling the "On-Off" time periods of operation of a plurality of electrical loads comprising an electrically operated rotatable timer device, a plurality of switches associated with said timer, a plurality of actuators carried by said timer and respectively positioned to open and close said switches at periodic intervals, first circuit connections for connecting said switches with said loads to energize and deenergize the loads for time periods determined by the timer, one of said loads comprising a room air-conditioning unit, said first circuit connections including circuit means connecting said unit with a supply source, and said first circuit connections including a relay having normally open contacts positioned in said last name circuit means arranged to be closed upon energization of said relay during closing of one of said actuator controlled switches, and another of said loads comprising an electrically operated water heater unit, said air conditioning unit and said heater unit being controlled by respective thermostats associated therewith, the said first circuit connections including a selectively operable switch movable to one position for connecting said units with said actuator controlled switches and movable to another position to connect said units with a supply source independently of said actuator controlled switches.