| 摘要 |
An electric hot water heater tank is fitted with a plurality of separators that divide the tank into a plurality of chambers surrounding the tank axis and extending between the top and bottom walls. The adjacent chambers communicate alternately in a direction radially outwardly with respect to the axis proximate to the top wall and proximate to the bottom wall such that water flows through the adjacent chambers in opposite directions generally parallel to the axis. An electric heating element is received in the innermost chamber, and a cold water supply inlet conduit leads from outside the tank into the innermost chamber. A hot water outlet conduit leads from the outermost chamber to outside the tank. An optional venturi injector draws water from one of the chambers radially inward from the outermost chamber and injects it into the outlet conduit.
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