Vintage copper water boilers, often called “coppers” or “washing coppers,” were a
common sight in homes, particularly in the 19th and early 20th centuries, before
the widespread adoption of modern plumbing and central heating. These were
essentially large copper containers, sometimes lined with cast iron,
used for heating water, primarily for laundry and bathing. They were
heated on a stove or fireplace, and the heated water was then used for
washing clothes, bathing, or even for making tea or coffee introduced
by UK.