Peter Sayer for PCWorld: "A series of tubes" is one of the most famous explanations of what makes the internet work, but it's also what many Europeans use to heat their homes. That's made room-by-room heating automation difficult -- until now.
Heating systems in Europe typically circulate hot water from a boiler to radiators around the home, with the pump and boiler controlled by a central thermostat. Programmable timers can boost the temperature on winter evenings or lower it at night.
Generally, though, such control is an all-or-nothing, whole-home affair, making it impossible to heat the living room only in the evening but warm the bathroom for a morning shower. Smart controllers like Nest and its European competitors Tado and Netatmo can't change that, as the series of tubes in most homes doesn't allow for independent control of different heating zones. Cont'd...
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