초록 ▼

An integral water circulation apparatus supplies instant hot water at hot water faucets remotely located from the building water heater through a convective circulation flow of hot water from the water heater It is therefore simpler in design, less expensive to install, and more reliable than the mo

An integral water circulation apparatus supplies instant hot water at hot water faucets remotely located from the building water heater through a convective circulation flow of hot water from the water heater It is therefore simpler in design, less expensive to install, and more reliable than the more complex prior art systems. It has the further advantages of not mixing heated water with cold water being supplied to cold water faucets throughout the building and of preventing cold water from flowing up the return line to the hot water faucet

대표청구항 ▼

[ I claim:] [1.] A water circulator for providing instant hot water to a remotely located hot water faucet within a building, the water circulator comprising a housing, within which are formed upper and lower internal chambers, the upper and lower internal chambers being connected by a passageway ha

[ I claim:] [1.] A water circulator for providing instant hot water to a remotely located hot water faucet within a building, the water circulator comprising a housing, within which are formed upper and lower internal chambers, the upper and lower internal chambers being connected by a passageway having a cross sectional area smaller than a cross sectional area of each of said upper and lower internal chambers, said lower internal chamber having a cold water inlet coupled to a cold water supply line for the building and having a cold water outlet coupled to a pipe supplying cold water faucets throughout the building, said upper internal chamber having a heater supply outlet coupled to an inlet of a conventional water heater serving the building and having a return inlet coupled to one end of a return line, the other end of the return line being coupled, proximate a remotely located hot water faucet within the building, to a hot water line serving that hot water faucet, said return inlet of said upper internal chamber having a check valve therein to prevent the flow of water out of said return inlet.