| 摘要 |
PROBLEM TO BE SOLVED: To provide a low-cost product for keeping the floor face of a bathroom warm for about one hour of bathing by storing heat in a sheet without use of any heat source in particular, and using the sheet to keep the floor warm in the bathroom. SOLUTION: A material with good heat conductivity and a material with the effect of storing heat at low temperatures are combined and put in a sheet of good heat retentivity. When water in a bathtub is heated, the sheet is heated to the temperature of the hot water to keep the floor face warm in the bathroom during bathing time. COPYRIGHT: (C)2004,JPO
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