Control the heating to reduce bills and carbon
When we moved into this house, the central heating and domestic hot water were controlled by a traditional programmer. A great improvement to either leaving the whole system on all the time, just controlled by thermostats, or a manual switch, akin to lighting a fire in the hearth when you get home. There is an uncomfortable period of being cold before the room or house warms up.
The programmer had settings for Weekdays, and Weekends. An acl Lifestyle (Drayton) Model LP522. We swapped that out for a similar one, but with the additional function of being able to set each day separately. It was a very easy task as the industry had adopted a standard docking for such things many years before. It was just a case of switching off the power supply, unscrew the retaining screws, clip out from the dock and then clip in the new one, and reverse the procedure. Then set the times you want the heating to come one and the time for the hot water, for each day, and sit back and enjoy being comfortable.