PURPOSE: the house of economy and ground water air-conditioning system provides the separation and recycling that cooling and heat exchange in a kind of water operating room concentrates on bathtub or sink. ;CONSTITUTION: the underground water is used in house supply drinking water, branch includes lavatory or bathtub etc. in the pipe-line system and it interlinks without changing existing utility. Using the underground water air conditioner in use, the water after heat exchange concentrates on bathtub or sink with it used as drinking water. ;The 2012 of copyright KIPO submissions
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