发明名称 Energy conservation in shower bathing
摘要 Disclosed is a method and apparatus for decreasing the energy consumed by shower baths. The apparatus comprises a heat exchanger used to preheat incoming cold water with hot drain water and a local hot water heater used to elevate the temperature of the hot water feed to levels above about 170 DEG F. The local heater and heat exchanger cooperate to result in energy savings of approximately 50% or more.
申请公布号 US4300247(A) 申请公布日期 1981.11.17
申请号 US19800147372 申请日期 1980.05.07
申请人 BERG, CHARLES A. 发明人 BERG, CHARLES A.
分类号 A47K3/28;E03C1/00;E03C1/044;F28D21/00;(IPC1-7):A47K3/22 主分类号 A47K3/28
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