Dual Sensor Companion Water Heater
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United States of America Patent
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Issued Date -
Jul 31, 2014
app pub date -
Jan 24, 2014
filing date -
Jan 25, 2013
priority date (Note) -
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Abstract
A hot water heater appliance includes a boiler, companion water heater, and a controller. The companion water heater has a hot water storage tank. The controller is configured to control the water heater appliance in response to a sensed temperature at an upper portion of the hot water storage tank and a sensed temperature at a lower portion of the hot water storage tank. The controller is configured to control the boiler to quickly heat water in the hot water storage tank in response to both upper and lower temperatures of the hot water storage tank being below a predetermined temperature and the controller is configured to more slowly heat water in the hot water storage tank in response to the upper temperature of the hot water storage tank being above the predetermined temperature and the lower temperature of the hot water storage tank being below the predetermined temperature.
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