貯ちょ湯とう槽そう

noun

hot water tank; hot water storage tank

A tank for storing heated water, often used in residential or commercial hot water supply systems.

• 新あたらしい貯ちょ湯とう槽そうを設せっ置ちしたので、お湯ゆがたっぷり使つかえます。

  We installed a new hot water tank, so we can use plenty of hot water.