Of the course of the last year or so I’ve gradually created a smart home system with in the teens of components as follows:

• • 8 Eve Thermos (eTRVs) which replace the standard TRVs on the radiators.  These eTRVs are programmable for both temperature and schedule, replacing the previous central heating timer at home level with multiple timers at room level effectively creating a multi zone system.
  • 3 Eve Window switches which detect open windows.  These illuminate a warning lamp and/or disable heating of that room while the window is open.
  • 2 non-Eve smart bulbs. Both of these operate on a dusk-to-dawn schedule while one also illuminates in a colour when any of the 3 monitored windows is open.
  • 2 Eve Motions.  One of these adjusts the lounge heating in the evening based on room occupancy so that the heating is disabled earlier in the evening if the room is not occupied.  The other is as yet uninstalled.
  • 1 Eve Energy which is a remote-controlled outlet that turns the gas boiler on or off based on heating demand from the eTRVs and a couple of rules.
  • 1 Apple TV box which acts as a home hub for monitoring the devices and running multiple rules which operate lamps and outlets based on input status.  Currently input is taken from valves, windows, motion, and external dusk/dawn signals and outputs sent to other valves, lamps, and socket outlet.

At the moment I tend to add a new device each month – if I can think of a useful function that it can perform.

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