We have recently built a modest (15ft square) timber garden room for our children and have put in a very (25+ years) old fridge as a drinks cooler. My worry is that even here in the UK the room gets incredibly hot, like parked car hot, with the doors and windows closed during the day. I'm concerned that the extra load on the old fridge could lead to electrical problems, even though there's a professionally installed trip board.
Do I need to worry much please? I've actually just removed it, pending advice.