Airing cupboard

[Oralee]

a heated cupboard where clothes, sheets, etc. that have been washed and are almost dry are put so that they can become completely dry

[exinilu]

An airing cupboard is primarily a cabinet where the hot water tank is kept. Theyre usually put into a cupboard near a stairway landing, in a bedroom or near a room that requires hot water, such as a bathroom.