Heat exchange – Structural installation
Patent
1996-05-13
1998-08-11
Ford, John K.
Heat exchange
Structural installation
165 66, 165179, 165164, 13724741, 13724751, 4598, F24D 1700, F24H 116, A47K 322
Patent
active
057914010
ABSTRACT:
A heat recovery device is disclosed which is adapted for use in the drain conduit of standard shower installations having a hot water line, a cold water line, means for mixing water from both lines to deliver water at a suitable temperature to a shower head, and a drain conduit for disposing of waste water passing through the shower installation, the heat recovery device transferring heat from the waste water to cold water flowing to the cold water line. The heat recovery device has a first conduit connected into the drain conduit of the shower installation, and a second conduit connected into the cold water line leading into the shower installation and either wrapped around or inserted within the first conduit so that the second conduit is in operative heat transfer relationship with warm waste water passing through the first conduit, so that the incoming cold water is preheated by heat recovered from the waste water and transferred to the cold water.
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Ford John K.
Wittstein Martin D.
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