The House & Home pack includes the HeatingSave boiler controller together with 5 temperature sensors. These are used to monitor and control the boiler flow and return pipe temperatures as well as the temperatures in the various heating zones. One of these zones can be the hot water cylinder. Here, the hot water temperature may be varied at different times of the day. For example, you might want hot water at 65°c for baths in the morning but only water at 45°c during the day for washing of hands and dishes. This might not sound much of a saving but it all adds up over the course of a heating year, especially when using electric immersion heaters in summer. As the system is automatic, you can leave HeatingSave to run your heating unaided — all the time saving you money.