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US 2004/0200532 A1Published application
Hot water recirculating system
OwnerBruno Giammariainventor
Life of this patent
Estimating the term…
Abstract
A hot water circulating system to provide instant hot water including a hot water source connected to one or more fixtures and a hot water return line from the fixture to the hot water source including a check valve and a continuous circulation pump in the return line.
Claims2
A hot water on demand system comprising a hot water heater connected to a supply of water.
- A first hot water line connected to the hot water heater and one or more plumbing fixtures for circulating hot water from the hot water heater to the plumbing fixtures:
- A second line connected to the first hot water line adjacent each of the fixtures and to an inlet of the hot water heater and pump means for circulating hot water from adjacent the fixtures through the second line to the heater.
Dependencies are inferred from the claim text.