Warm again

This weekend the control system of the warm water system (central heating, showers, and so on) is replaced by a new one.
And some valves had to be replaced by new ones, so the system had to be emptied. (nice job just before winter starts....)
In this picture: a lot of pipes and pumps, heat-exchangers and: a temporary control unit, mounted on a piece of plywood.

So, no warm showers, no heating and so on.
Now it's working again, and we have to do a lot of dearating.

Here in LARGE...

And: four units to be started up and on the grid to power Europe....

And after that: rush home and to bed....