Heat exchange element for a water heater flue
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United States of America Patent
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Mar 12, 2002
Grant Date -
N/A
app pub date -
Jul 12, 1999
filing date -
Dec 24, 1996
priority date (Note) -
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Abstract
The present invention relates to heat exchange elements and heat exchange assemblies and water heaters containing such heat exchange elements. The inventive heat exchange elements include an elongated support member or spine, from which extends either a single vane which is the length of the support member of a series of vanes. The heat exchange element is able of be positioned parallel to the longitudinal axis of a flue. The heat exchange element may impart helical motion to the flue gases in one embodiment, but in another embodiment no helical motion is imparted to the flue gases. The embodiment of the invention includes several methods of manufacture of the heat exchange elements. The embodiments of the water heater and heat exchange assembly also disclose the use of a baffle for use in association with the elements, to improve the efficiency of the elements at the upstream end of the water heater.
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