I am an electrician who installs heating controls, I installed a nest thermostat in my own house. It is absolutely rubbish and quite complicated for someone who doesn’t know their way about programming thermostats. It struggles to link between the thermostat and the boiler constantly although only around 8m between them. This product does not perform as it should and I would highly recommend using something else, there are plenty of reviews on other products that will help you choose something that is more reliable. RegardsJohn
