ゆわき 湯沸かし器 LinksSentence search for 湯沸かし器Sentence search for ゆわかしきSentence search for 湯沸し器Sentence search for 湯沸器Kanji details for 湯, 沸 and 器Edit in JMdict Noun1. water heater; water boilerOther forms湯沸し器 【ゆわかしき】、湯沸器 【ゆわかしき】 Discussions Log in to talk about this word.