Water heater - Yuwakashiki
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This primarily refers to instantaneous water heaters that instantly heat water when needed. Generally, they use gas as the heat source, and the size indicates the volume in liters that can supply hot water 25°C higher than the water temperature per minute. Domestically produced models were first released in 1930, and were primarily used for commercial purposes. In the 1960s, as living standards improved, they spread to ordinary households, and currently (1982) they have a penetration rate of 77.1%. [Sugihara Miyuki] Source: Heibonsha World Encyclopedia, 2nd Edition Information |
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必要時に水を瞬間に加熱する瞬間湯沸器を主として指す。一般にはガスを熱源とし，水の温度より25℃高く暖めた湯を1分間に供給できる体積のリットルを号数で示す。国産品が出たのは1930年で，おもに業務用で使われた。60年代には生活水準の向上とともに一般家庭に普及し，現在77.1％の普及率(1982)である。【杉原 美由紀】
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 |
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