1.
office kitchenette; hot-water room; pantry
A small room in an office or building equipped with a sink, a kettle or hot water supply, and sometimes a microwave. Used by staff to make tea, wash cups, and take short breaks.
Usage
給湯室 literally means "hot water supply room." It is the standard Japanese term for an office kitchenette or break area with a sink and hot water. In many Japanese offices, it functions as a communal space for making tea and coffee.