I ordered an instantaneous water heater thinking what a great product, but it would take an entire power station to operate it - 12W so my domestic power availability was no use. It was however sold with a domestic sink and tap. If there had been any level of customer service I wouldn't have been landed with this. Now have to pay to have it returned - feeling ripped off! Also I could return it myself, but they only accept couriers - what is the different between me taking it back and the courier? Will be of environmental benefit if I can take it and not have to wrap it in yards of plastic protection and cardboard surely! Grumbles. Won't use this company again! Billi Leach