Smart demand hot water system
First Claim
Patent Images
1. A demand hot water recirculation system comprising:
- a hot water source;
at least one plumbing fixture having a hot water inlet;
a conduit, in fluid communication with said hot water source and the plumbing fixture hot water inlet, for enabling circulation of hot water from said hot water source to the plumbing future and return to said hot water source;
a pump for circulating hot water through the conduit;
a switch for generating control signals; and
a controller, responsive to a plurality of control signals, for activating said pump based on a statistical analysis of control signal timing.
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Abstract
A demand hot water recirculation system includes a hot water source and at least one plumbing fixture having a hot water inlet. A pump is provided to circulate water to and from the fixture and a controller, responsive to a plurality of a generated control signals, based on fixture use, activates the pump based on a statistical analysis of control signal timing.
56 Citations
13 Claims
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1. A demand hot water recirculation system comprising:
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a hot water source;
at least one plumbing fixture having a hot water inlet;
a conduit, in fluid communication with said hot water source and the plumbing fixture hot water inlet, for enabling circulation of hot water from said hot water source to the plumbing future and return to said hot water source;
a pump for circulating hot water through the conduit;
a switch for generating control signals; and
a controller, responsive to a plurality of control signals, for activating said pump based on a statistical analysis of control signal timing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A demand hot water recovery system comprising:
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a hot water source;
a hot water delivery line connected between said hot water source and at least one plumbing fixture;
a cold water delivery line connected between said plurality fixture, a cold water source and said hot water source;
a pump interconnected between said hot and cold water delivery lines, for circulation of water from the hot water delivery line through the cold water delivery line and into said hot water source;
a switch for generating control signals; and
a controller, responsive to a plurality of control signals, for activating said pump based on a statistical analysis of control signal timing. - View Dependent Claims (10, 11, 12, 13)
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Specification