Fluidmaster, Inc.

Frederick Blau, Jr

Tom R Vandermeyden

John M Gross

Oscar R Dufau

A conventional hot water heating system generally of the type for heating water in multiple units of hotels, motels, schools and the like and using any heating medium has a processor and control assembly which is operationally connected to at least a water temperature sensing means and a heating control means thereof. The processor and control assembly divides the time into exact time periods, say one-half hour, and the time periods are grouped into a group of consecutive time periods, say a week. Taking any individual time period, the time periods are checked around the time period which the present time period is a repeat and time periods directly preceding the present time period, and the operational water temperature for the present time period is chosen, as well as the amount of heat required to maintain the water at that temperature on a percentage basis of heating taken from one hundred percent. In addition, the assembly exactly records the various settings throghout that particular time period and when the time period comes up again one week from now, the new settings are calculated in the same manner but using the previous time period being repeated.

Hot water heating system having minimum hot water use based on minimum

A conventional hot water heating system generally of the type for heating water in multiple units of hotels, motels and the like and using any heating medium has a processor and control assembly operationally connected to at least a heating control means, a water temperature sensing means and a water flow sensing means thereof. The processor and control assembly divides the time into exact time periods, say one-half hour, and the time periods are grouped into a group of consecutive time periods, say a week. Taking any individual time period, a directly preceding time period is checked with the same time period in the preceding group of time periods and if the two match within a given degree, the assembly adopts all of its settings from its particular time period a week ago. In addition, the assembly exactly records the various settings throughout that particular time period and when that time period comes up again one week from now, those are the new settings by the processor and control assembly to be used. Still further, at any time in a time period that high hot water flow from the water tank is detected by the water flow sensing means and the heating control means has not yet begun to begin heating more hot water, the water flow will immediately turn on the heating control means to thereby eliminate needless delays in the heating of water. By the heating of water in the manner described, therefore, the maximum water temperature can always be maintained at a minimum and there is still relative assurance of a hot water supply at all times.

Scheduled hot water heating based on automatically periodically adjusted

Apparatus and method for controlling a hot water heater to heat water during off peak load hours to a desired temperature by the end of a predetermined period of time. The heating is in partial increments, the water being heated a partial amount in each of a plurality of predetermined time segments with a view to reaching the desired temperature at the end of the predetermined time period. The water is heated by adjusting the heater at each segment to its maximum power or a portion thereof. The method includes the steps of computing the heater power required for the next time segment, setting the heater power accordingly, waiting until the end of the time segment, determining the new temperature of the water, and repeating the steps until the end of the time period.

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Fountain Valley, CA, United States of America

Frederick Blau, Jr