Electronically controlled hot water recirculation pump
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United States of America Patent
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Nov 26, 2013
Grant Date -
Sep 22, 2011
app pub date -
Feb 17, 2011
filing date -
Feb 18, 2010
priority date (Note) -
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Abstract
A water pump controlled by a microcontroller and operated to pump hot water for specific recirculation periods during a multi-day cycle. The recirculation periods are determined from hot water usage data logged by the microcontroller during a logging period occurring in the previous multi-day cycle. A preferred cycle is during a seven-day, or one-week, period.
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