After my products from Busch Jaeger (room thermostat) life had hampered the last 6 years unnecessarily, I have now tried it out simple control without electronics. The installation was easy as an electrician for me, but even a layman with some Fingerspitzengefüht switched and voltage free wiring is thus optimally cope. Over the life I have, of course, no experience, but that remains to be seen already.
