Electric resistance heating devices – Heating devices – Tank or container type liquid heater
Patent
1996-12-12
1999-03-02
Jeffery, John A.
Electric resistance heating devices
Heating devices
Tank or container type liquid heater
126344, 392497, F24H 100
Patent
active
058781927
ABSTRACT:
An improvement in electrical elements for a water heater includes a mass attached to the element for reducing the deposition of hard water scale on element surfaces, particularly in the return bend areas. In one embodiment, a flow accelerator tube encloses the element. The flow accelerator tube has an inlet at one end and an outlet at a higher elevation at the opposite end. Water is induced to flow through the tube because of temperature change. In another embodiment, a solid mass with high surface area encloses the return bend areas to increase heat transfer at a lower temperature to reduce scaling and increase element life.
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Jeffery John A.
Water Heater Innovations, Inc.
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