Originally Posted by Andy M.
You need to get a slow cooker that will work with the electrical requirements in Norway. In the US, small electrical appliances operate on 110-120 volts of electricity. In Europe and other places, it is often 220 volts. Just changing the plug may not do the trick.
The electrical requirements in Norway are as in all other European countries, i.e., 220. They're 230 in the U.K., but that doesn't require a transformer.
It really is a plug issue: the U.K. electrical appliances have a grounded plug which means it's 3-pronged, so it doesn't fit in the other European sockets. You can change the plug (which an electrical shop should do for very little money) or you can get an adapter with a female end for U.K. plugs and a male end for "normal" European sockets.