How to say "heater" in Japanese

• ヒーターCommon
  nounThe everyday word for a heater: the appliance you switch on to warm a room. For this household sense of English 'heater', this loanword is the usual choice.
  ヒーターをつけたまま外出がいしゅつした。↗

  I went out with the heater on.
• 暖房機だんぼうき
  nounA heating unit for warming a room: 暖房 is the everyday term for space heating, so this names the machine that provides it. Less common than ヒーター, the usual word for the appliance.
  退社たいしゃ前まえに電灯でんとうや暖房だんぼう器きを消けすことになっている。↗

  You are expected to put out lamps and heaters before you leave the office.
• 熱器具ねつきぐ
  nounA generic term for an implement or appliance that generates heat. A less common and rather marginal way to say 'heater'; for the appliance that warms a room, ヒーター is the word you want.
• 暖房装置だんぼうそうち
  nounHeating apparatus or equipment: treats the heater as part of a heating system rather than a single appliance. Less common than ヒーター, the usual word for the heater in your room.
• 加熱器かねつき
  nounA device that applies heat to something, matching the 'heating apparatus' side of 'heater'. Less common and not the everyday word for a room heater; use ヒーター for that.

For the heater that warms a room, 「ヒーター」 is the everyday choice; 暖房機 and 暖房装置 present it as room-heating equipment, while 熱器具 and 加熱器 are less common terms for heat-generating devices.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• ヒーターheater
• 暖房機だんぼうきheater
• 熱器具ねつきぐheater
• 暖房装置だんぼうそうちheater
• 加熱器かねつきheating apparatus
• ストーブ(room) heater