Coal chute fan

[KAgantua]

Ive uncovered a hidden coal cellar behind the wine rack in the larder of a house im selling.

Its pretty damp, id like to increase air movement, should i install a fan in the coal chute? If so what type?

Another option is to put an exterior wall vent on the other side of the larder so there is air vents both sides (Or near as damn it) the whole space.

There is ventilation (Airbrick) at the top of the coal chute

[KAgantua]

Its only about 3 foot wide by 4 foot deep, its not big. Its connected via an opening to the larder next door (Which is about the same size) and the larder is the room that I knew about.

J

[KAgantua]

There is a cold slab in the larder room yes.

I never knew about this room, its not even in the main footprint of the house, (Its under the front path)