Pushed a new system image to master. These are fun to draw!
My system is a lot simpler without external hot water so I'm missing most of the sensors, but I suppose this is a common setup in Denmark?
Will probably include a couple of variants of these in the default install, and a way to point to your own picture will also be added. Any suggestions for the picture (missing/erroneus details or just the general look of it) would be appreciated...