Last night I came a bit further with my research into the world of micro wind turbines. My setup will be made from these parts:

1 Vind Generator Air X Land - 24V. (US build with integrated chargecontroller)

10 meters of special cable.
1 24 boiler to fit in my 220 liter hot water tank

2 12 Volt deep cycle batteries, Solar SP 200, 120Ah. 22 kg each !

1 Controller to secure the batteries from running dry.

I have asked for a price for all the parts from one dealer just 50 km. from here and he will answer me later this week.

More about my wind project: Finding the right wind generator