Translation guide
A boiler is a device that heats water or produces steam, commonly used for heating systems or hot water supply. In Japanese, the term depends on the type and context.
A device in a home that heats water for taps, showers, etc.
General term for a water heater that supplies hot water. Common in homes.
給湯器が故障したので、お風呂に入れない。
The boiler broke down, so I can't take a bath.
Loanword from English, often used for larger or industrial boilers, but can refer to home units.
ボイラーの調子が悪い。
The boiler is acting up.
A boiler that provides heat for radiators or underfloor heating, often combined with hot water.
Specifically a boiler for heating. Often used in colder regions.
暖房ボイラーのスイッチを入れてください。
Please turn on the heating boiler.
Technical term for a central heating boiler. Less common in everyday speech.
この家はセントラルヒーティングボイラーを使っています。
This house uses a central heating boiler.
A large boiler used in factories, power plants, or commercial buildings to produce steam or hot water.
Standard term for industrial boilers. Also used for steam boilers.
工場のボイラーは毎日点検が必要です。
The factory boiler needs daily inspection.
Technical term for a steam boiler, often used in engineering contexts. Rare in everyday language.
汽缶の圧力が上がりすぎている。
The boiler pressure is too high.
A container used to heat water to boiling point, like a kettle or a pot.
A kettle for boiling water, typically used on a stove. Not a 'boiler' in the heating sense, but sometimes translated as such.
やかんでお湯を沸かしてください。
Please boil water in the kettle.
A pot used for boiling, but not specifically a boiler. Context-dependent.
大きい鍋でお湯を沸かす。
Boil water in a large pot.
給湯器 (kyuutouki) specifically refers to a water heater for domestic hot water supply, while ボイラー (boiraa) is a broader term that can include heating and industrial boilers. In a home context, 給湯器 is more precise for a device that only heats water for taps and baths.
給湯器はお湯を出す機械で、ボイラーは暖房にも使える。
A kyuutouki is a machine that provides hot water, while a boiler can also be used for heating.
In English, 'boiler' can sometimes refer to a kettle or pot for boiling water, but in Japanese, ボイラー is not used for kitchen kettles. Use やかん (yakan) for a kettle.
やかんはボイラーじゃないよ。
A kettle is not a boiler.