Electronically controlled hot water recirculation pump with data logging
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United States of America Patent
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Dec 8, 2015
Grant Date -
Mar 13, 2014
app pub date -
Nov 14, 2013
filing date -
Feb 18, 2010
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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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