Title: Method and apparatus for cyclically controlling the energization of home water heaters

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Abstract: A method and apparatus for cyclically controlling the energization of water heaters in residential homes on a daily and seasonal temperature basis. The apparatus includes a pair of clock timers each having a disk for supporting a plurality of relay actuators in spaced relationship to one another. The relay actuators open and close associated relays which couple power from a suitable source to the water heater via a seasonal thermostatic switch. The thermostatic switch connects one or the other of the relays in circuit with the water heater. On one of the disks the actuators are spaced for "summer" load conditions so that power to the water heater is inhibited for a substantial portion of the time in each day when "summer" power demand is greatest, that is, between noon and 8:00 p.m. On the other disk the actuators are spaced for "winter" load conditions so that power to the water heater is inhibited for a substantial portion of the time when "winter" power demand is greatest, that is, between 4:30 and 9:30 p.m.


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