Abstract: A method is provided for monitoring pressure within a water heater. The method comprises: heating water contained within a vessel in the water heater; sensing strain on the vessel; correlating the sensed strain to a pressure within the vessel; and providing an indication in response to the water pressure exceeding a desired pressure.

Abstract: A method is provided for indicating that a water heater has ceased to produce water at a temperature useful for sanitizing procedures. A temperature sensor is deployed at or near the water heater, such as adjacent a water line extending from the water heater. The temperature sensor provides a signal having at least one parameter that relates to the temperature of the water exiting the water heater. In the event that the temperature falls below a level useful for sanitizing procedures, an alarm is activated. The alarm may be located locally or remote.

Abstract: A multi-function controller for a water heater is advanced comprising a control panel and a plurality of sensors that monitor a variety of functions that impact the operation of a water heater. A flammable gas sensor, placed in proximity to the air intake, detects the presence of an unsafe concentration of gas and issues a signal to the control panel, which subsequently discontinues the operation of the burners. Detection of a blocked vent pipe is achieved by a carbon monoxide sensor placed near the draft hood. The control panel is equipped with circuitry which monitors usage of the heater for a specified time period to develop a pattern of use. Subsequent to the monitoring period, the controller will activate the burners a predetermined time prior to an anticipated period of high use. During periods of low use, the controller will decrease the temperature to which the water is to be heated, thereby resulting in a more efficient heater.

Abstract: A multi-function controller for a water heater is advanced comprising a control panel and a plurality of sensors that monitor a variety of functions that impact the operation of a water heater. A flammable gas sensor, placed in proximity to the air intake, detects the presence of an unsafe concentration of gas and issues a signal to the control panel, which subsequently discontinues the operation of the burners. Detection of a blocked vent pipe is achieved by a carbon monoxide sensor placed near the draft hood. The control panel is equipped with circuitry which monitors usage of the heater for a specified time period to develop a pattern of use. Subsequent to the monitoring period, the controller will activate the burners a predetermined time prior to an anticipated period of high use. During periods of low use, the controller will decrease the temperature to which the water is to be heated, thereby resulting in a more efficient heater.