The C1 is just another toy to play with....

Till now, I dont have one. A friend of mine's got two,
he is delighted bout the "transportpotential of the heat".
And they are running stable, he said.
So my idea, take 10 of them, put waterpipes together and
lead it through the underfloor heating......

Just put them in the bathroom and hook them up to the hot water side of your sink and you will have instant hot water.