I want to put a small bar fridge in the (rather large) kitchen cupboard under my sink to ultimately be used as a kegerator.
The fridge will be a custom free-standing insulated box (similar to this one) which uses the thermostat, compressor, cooling element, and rear coils from a standard 4ft3 bar fridge. I measured the cupboard to be 28ft3. The cupboard is not ventilated, but isn't sealed either. It's opened pretty often, and the two big sinks might help conduct heat out of there.
What do you think? Will heat dissipation be a problem?