Water Heater and a Method of Operating Same
First Claim
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1. A method of determining an operating water temperature for a boiling water heater, the method including the following steps:
- (a) adding water to a tank to a predetermined level;
(b) heating the water in the tank to approximately 95 degrees Celsius;
(c) applying sufficient heat to the water in the tank so as to cause boiling of the water in the tank within a predetermined first period of time;
(d) measuring the boiling water temperature of the water in the tank; and
(e) subtracting a predetermined temperature from the boiling water temperature measured in step (d) to arrive at the operating water temperature.
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Abstract
A method of determining an operating water temperature for a boiling water heater includes the following steps: (a) adding water to a tank to a predetermined level; (b) heating the water in the tank to approximately 95 degrees Celsius; (c) applying sufficient heat to the water in the tanks so as to cause boiling of the water in the tank within a predetermined first period of time; (d) measuring the boiling water temperature of the water in the tank; and (e) subtracting a predetermined temperature from the boiling water temperature measured in step (d) to arrive at the operating water temperature.
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Citations
41 Claims
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1. A method of determining an operating water temperature for a boiling water heater, the method including the following steps:
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(a) adding water to a tank to a predetermined level; (b) heating the water in the tank to approximately 95 degrees Celsius; (c) applying sufficient heat to the water in the tank so as to cause boiling of the water in the tank within a predetermined first period of time; (d) measuring the boiling water temperature of the water in the tank; and (e) subtracting a predetermined temperature from the boiling water temperature measured in step (d) to arrive at the operating water temperature. - View Dependent Claims (2, 3, 4)
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5. A water heater adapted to determine an operating water temperature, the heater including:
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a water tank; means to measure the water temperature of the water in the tank; a timer; and heating means adapted to heat the water in the tank to approximately 95 degrees Celsius, the heating means also being adapted to apply sufficient heat to the water in the tank so as to cause boiling of the water in the tank within a predetermined first period of time, wherein the operating water temperature of the water is the measured boiling water temperature minus a predetermined temperature. - View Dependent Claims (6, 7, 8, 9)
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10. A method of operating a water heater, the method including the following steps:
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(a) adding water to a tank to a predetermined level; (b) monitoring the time period since water was last dispensed from the water tank; and (c) if the monitored time period reaches a predetermined time, then removing water heating energy from the tank until the water in the tank cools to a predetermined temperature, above a temperature where bacterial growth can occur, and applying sufficient heat to the water in the tank so as to maintain the temperature of the water in the tank approximately at the predetermined temperature. - View Dependent Claims (11, 12, 13)
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14. A water heater including:
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a water tank; means to sense when water is dispensed from the tank; a timer to monitor the time period since water was last dispensed from the water tank; means to measure the temperature of the water in the tank; and heating means to heat the water in the tank, wherein, if the monitored time period reaches a predetermined time, energy is removed from the heating means until the water in the tank cools to a predetermined temperature which is above a temperature where bacterial growth can occur, and thereafter the heating means applies sufficient heat to the water in the tank so as to maintain the temperature of the water in the tank approximately at the predetermined temperature. - View Dependent Claims (15, 16, 17, 18)
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19. A method of operating a water heater, the method including the following steps:
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(a) adding water to a tank to a predetermined level; (b) adding heat to the water at a first energy level until a first predetermined water temperature is reached; and (c) adding heat to the water at a second energy level, lower than the first energy level, until a second predetermined water temperature, higher than the first predetermined water temperature, is reached. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A water heater including:
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a water tank; means to measure the temperature of the water in the tank; and adjustable heating means adapted to add selectively variable heat to the water in the tank, wherein the heating means operates at a first energy level until a first predetermined water temperature is reached, whereafter the heating means operates at a second energy level, lower than the first energy level, until a second predetermined water temperature, higher than the first predetermined water temperature, is reached. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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Specification