Standard electric water heaters are controlled by a regular switch.
Users can only power on/off their heater with a switch.
Digital water heaters have touch-screen panels used in place of the switch.
Users can lower the heater thermostat to save energy.
Not being able to accurately control your water heater temperature is similar to buying an air conditioner with no remote control.
Use technology to save energy. Reduce your thermostat setting to save more and raise it when you have to cater to more people.
Always ensure you set thermostat over 50°C. to avoid bacteria formation.