@contrex,
Quote:I would use 'in the pantry'.
You appear to have your pantries in a twist dear.
A pantry is a small room or cupboard in which food, crockery, and cutlery are kept.
The OP stated:
"... the oven is outside the room ... located in the pantry, which contains a fridge, an electronic ring, etc. ..."
-From room 202 you could hear the beep, beep beep of the microwave in the kitchen.
[ Edited to beep beep beep to avoid gratuitous ribaldry.]