Optimmersion is generally used for heating water with an immersion tank in a standard single phase environment. Here are some other uses for Optimmersion.
Optismart for combi-boilers
The Optimmersion range can be in combination with a Willis heater to pre-heat central heating system, so that your solar energy can be used for your central heating when you need it.
Using Optismart in three phase systems
The Optismart Hot Water can easily be used with three phase electricity systems, so that auto-consumption can be understood and maximised together with the Wattson display and the Optiplug intelligent sockets.