E - Fixed Constructions – 03 – C
Patent
E - Fixed Constructions
03
C
E03C 1/12 (2006.01) E03C 1/044 (2006.01) F28D 7/04 (2006.01)
Patent
CA 2621626
A bath waste assembly is that unit that occupies the lowest point in a vessel or tray used for bathing and drains away water to a sewage system, often in concert with an overflow waste drain. The horizontal portion of the waste water assembly terminates in a P- trap that separates the assembly from the rest of the drain and sewer apparatus. The horizontal pipe running from the bath drain hole to the fitting leading to the P-trap can become nearly as hot as the hot water originally entering the vessel, particularly when the bath is being used as a shower vessel. Replacement of this pipe with a copper waste water pipe wrapped with narrower copper pipe through which cold supply water runs, absorbing heat on its way to a thermostatic control valve, allows the amount of hot water balancing this cold water to be decreased automatically since the temperature of the cold water has been increased. Since the heat transfer avoids the hot water supply entirely, various benefits are involved including complete independence from the water heating technology, reduction of heat loss and pressure loss, better heat transfer, and a decreased risk of cross- contamination.
Mcleod Christopher A.
Na
LandOfFree
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