A good reply from Edinburgh Lexus thanks, I thought the petrol engine, ran ac and heating, in fact I thought the ac and heating were all part of the same unit, I have learnt something there, that they are run from two different power sources. So I will try turning the heat down, to close to Cold and turning the heated seats up and wearing snowboard gloves, No!!!! dont think so:-)
I just read the Prius message board and struth they are talking about Sueing Toyota,struth chaps, steady!!!