Alot of you seem to be doing this for 'health' reasons. Personally I can't see how this is justifiable logic. Instead of torturing yourself by not enjoying a couple of beers why don't you go for a run or the gym?
I hope I didn't miss it earlier in the thread but could anyone who has the 2.5kw circular element tell me how wide the mounting hole needs to be? I punched a 40mm hole in the base of my HEX pot and the element shorted :( Need to get a replacement and these look the goods.