HOT WATER DEVICE FOR BATHTUB

摘要

PROBLEM TO BE SOLVED: To provide a hot water device for bathtub causing no burn by filling hot water in a bathtub not from a heat exchanger side when hot water is filled in the bathtub in an insulating system incorporating a part of insulation circulating pipes as a heat exchanger in a hot water storage tank. SOLUTION: A hot water filling pipe 9 for filling hot water in the bathtub 13 is installed through a hot water combination valve 7. The insulation circulating pipe 12 comprises a return pipe 15 and a forward pipe 16 with one ends connected to the heat exchanger 14 incorporated in the hot water tank 1 and the other ends connected to the bathtub 13 and a circulation pump 20 for circulating hot water in the bathtub 13. A three-way valve 17 for selecting the flow passage of hot water between a hot water filling pipe 9 side and an insulation circulating pipe 12 side is installed at a merged point between the hot water filling pipe 9 and the forward pipe 16. The three-way valve 17 is selected to a hot water filling pipe 9 side to fill hot water without passing the heat exchanger 14. COPYRIGHT: (C)2003,JPO