This was the kick-off Home Automation project.
Solar water heaters are used quite extensively in Greece (…well…not only in Greece…). There is no problem for more than half of the year where sunshine takes good care of your hot water, however during winter periods you need to compensate for the reduced sunny periods. This is done by operating the heater in the traditional”mains supply” way.
The question here is “is there enough hot water for my shower? ”