noun
water heater; boiler; urn
Refers to a device for heating water, such as an electric urn, a pot-style water heater, or a boiler. Often used for appliances that heat and keep water hot.
オフィスに新しい沸かし器を置いた。
We put a new water heater in the office.
沸かし器でお湯を沸かしてコーヒーを入れた。
I boiled water with the water heater and made coffee.
Compound of 沸かし (continuative form of 沸かす 'to boil') + 器 ('device, vessel').