To provide a dissolution device for supplying a mineral compound or the like without an electric circuit which has a compact size and can be operated at a low cost, and a hot-water supply device equipped with the dissolution device.
There is provided a dissolution device comprising a water circuit 15, a storage means 12 communicating with the water circuit 15 and storing a powder type or granular mineral compound 11 or a mixture thereof, and an agitation means 17 provided in the interior of the storage means 12, in which the mineral compound 11 stored in the storage means 12 is agitated by the agitation means 17 so as to be dissolved in water, and the dissolved water is flown out from the water circuit 15. Thus, the mineral compound 11 can be dissolved in water at a high density on the basis of the principle of substance diffusion (Fick's law) such that a substance moves due to a density difference between water and the dissolved mineral compound 11.
NISHIYAMA YOSHITSUGU
ANDO TOMOAKI
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Daisuke Nagano
Kentaro Fujii
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