Are you in Europe? In the US, our 120 volt mains limit the size of what can go in our normal outlets. I've never seen an electronic grill, unless you mean something that we would call a griddle.
I occasionaly hear about people having their freezer out on the balcony. It makes sense for colder countries, as the temperature difference would be lower than if it were inside. But on the other hand, I'm pretty sure most freezers are not built to endure weather.
I have a cooler like what you would bring to a beach out on mine. In summer can put ice in it and keep stuff cold and in winter it helps keep cold things from freezing.