This is what I was worried about... and yes you are right, a transformer for that kind of load is not cheap at all which makes the whole thing an expensive device. Is there a similar thing to the Presto Kettle available in the UK I could convert? I looked at slow cookers, but they didn't seem to be all that controllable - low, med & high settings PS - I've not bought the Presto melter yet as I suspected it was not going to be that simple!