Localized hot water supply system

...A general term for equipment used to supply hot water, consisting of heating equipment, piping, hot water taps, pumps, etc. Hot water supply methods are broadly divided into local (or individual) hot water supply methods, in which a heating equipment is installed at each location where hot water is used and hot water is supplied individually, and central hot water supply methods, in which hot water is supplied to required locations through piping from a single heating equipment. Central hot water supply piping methods are divided into single-pipe types, in which the only pipe between the heating equipment and the hot water tap is a hot water supply pipe, and double-pipe types, in which in addition to the hot water supply pipe, a hot water return pipe is installed to constantly circulate the hot water to prevent the water temperature from dropping within the piping.

*Some of the terminology used in reference to "localized hot water supply system" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…湯を供給するための設備の総称で，加熱装置，配管，給湯栓，ポンプなどからなる。湯の供給方式は，湯を使用する個所ごとに加熱装置を設け，個別に湯を出す局所式(または個別式)給湯方式と，1ヵ所の加熱装置から配管により所要個所に給湯する中央式(セントラル式)給湯方式に大別される。中央式の給湯配管方式は，加熱装置と給湯栓の間の管が給湯管のみの単管式と，給湯管のほか，さらに配管内での湯温の降下を防止するために，常時，湯を循環させる返湯管を設ける複管式に分けられる。…

※「局所式給湯方式」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報