F - Mech Eng,Light,Heat,Weapons – 24 – H
Patent
F - Mech Eng,Light,Heat,Weapons
24
H
F24H 9/20 (2006.01)
Patent
CA 2551750
The temperature in a water tank (e.g., a residential water tank) is monitored, and a controller switches between a high temperature mode of operation and a low temperature mode of operation (e.g., based on a daily or weekly program). During the low temperature mode of operation, the controller generates signals to selectively activate a water heater to keep the water's temperature within a first range of values, (e.g., between 105 and 113 °F). During the high temperature mode of operation, the controller generates signals that cause the water heater to heat the water to a temperature that is above the first range of values. This arrangement may be used for saving energy by operating in the low temperature mode at night and during those parts of the day when nobody is home, and by operating in the high temperature mode in the morning and evening when the demand for hot water is typically high. This arrangement is also well-suited for day-care centers and nursing homes, in which case the low temperature mode is used to reduce the risk of scalding. It is also useful in the homes of people who wish to avoid violating a religious injunction that prohibits heating liquids beyond a threshold temperature on the Sabbath.
Isaacson Nissim
Sim & Mcburney
Sterling Water Heater Corp.
LandOfFree
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