Saving Money：Solar water heating systems are often controlled by electronic temperature controller and assisted with timers, however they are not smart. Timers do not adjust to the weather, which wastes energy. For example, in sunny days solar panels do not require assistance by the electric elements. Also it may overheat, which decreases the life of the system. Finally, the timers are not suitable for hot water consumption outside normal use hours, which may lead to cold water.

Saving Water：Solar water heating systems are usually located in distance from the bath taps, wasting considerable a mount of cold water until hot water flows through the pipes.

Saving Time：The nature of solar water heating systems does not allow rapid heating. Once hot water runs out, much time is required for cold water to reach a comfortable temperature.