Nest Learning Thermostat 3rd Generation, Copper - Smart Thermostat - A Brighter Way To Save Energy

The Built-in Battery is pretty useless, the 4th generation might want to address that, it only keeps power for time/date/wifi settings and thats it, it wont allow you to use the display controller at all until you plug it into a 5v wall adapter OR a USB Cable with the equally useless Micro-B worst connector in the history of USB !Come on, this is "GOOGLE" made !All in all, im damn glad i did it, wiring is exactly the same as my pre-installed heating controller by Danfoss, being in the UK and in a block of flats, so the flat already had a standard non-wifi controller that meant one has to get out of bed, crawl on the floor to the livingroom to switch on the heating then crawl back to bed. (cannot walk, flat is not big enough to wheel a wheelchair inside...)Now i can properly take full advantage of a 7-day schedule in the nest setup menu's that cater for the whole flats heating, only 5 wires, but please, TURN OFF THE MAINS AT THE BREAKER BOX BEFORE ATTEMPTING TO DO THIS YOURSELVES !RTFM !The usual suspects:Live, Neutral & Earth (3)COMMON & NO (Normally Open) (2)So its just checking which cables that you already have existing to wire to the nest link that goes on the wall replacing the standard crapola, after 3 years of begging HomeGroup to install a wifi version fell on deaf ears as usual, so if you are severely disabled too, this would be a very welcome purchase basically giving you full control over wifi whether you are indoors or outdoors !!!Apart from the internal battery of this nest display (the big round glass-screen display unit) being completely useless to the user, the device works after giving it a decent power source, 5v @1.5A was all i had and it did NOT come with a USB cable to provide power to it via a USB port - as the display is meant to be, well, placed anywhere in your home, so again, pretty useless having to buy another separate 5v phone power supply or just hunt your old micro-b cables from the past now that type-C has taken over (finally lol)Except a big and Heavy block of round glass that makes the display feel very heavy, also makes it fragile, a drop on solid flooring is risky.So ive placed mine on a table for now, as im mostly ever going to be using the app, but its nice to look at, lolSatisfying that there is finally a well known brand making these things for the home and with really simple instructions, well done, but the Google Nest has a lot of room for improvement.Maybe a battery base will be made too, but this is the 3rd gen, so maybe not.Something we can DIY with an old micro-b USB cable, spare lithium cells & some nice Aliexpress modules lolwas a direct swap from old to new, have fun :))

I’ve had this 3 years now, and was just thinking how good it is and so decided to finally leave a review!As it’s occupied during the day, our house has always been above average on energy usage. Switching from an old style thermostat and timer for water and heating to Nest has helped us reduce our use massively. Despite all the energy price rises I realised that our monthly payments today are actually still only on a level with what we were paying years ago, so hate to think how much they would be now if we hadn’t installed this.I think the main savings come from the fact that it considers the weather when deciding whether to start heating the house, and also identifies if the house is occupied or not.After setting the schedule it’s mostly been left alone to do its thing. The only time we really need to interact with it is to boost hot water if we know it’s going to run out for any reason. The app means that we can do that remotely if needed and has also let me set it to holiday mode when I’ve forgotten to do that before leaving a couple of times.Has proven to be well worth the money.

A great device, one of the few who deserve the lable "smart home".You can set it up yourself if you're an above average DIYer, it took me a couple of hours with some extra cabling needed from the distribution board for the hot water + concealing the cable the thermostat itself to the Smart Hive in the wall.A word of caution: DO NOT try to set it up yourself unless you're not absolutely sure of what you're doing: there's a risk of fatal electrical hazard -or, less dangerous but still costly, of damaging the thermostat. Do not play around with electricity :(Once the cabling and mounting is complete, setting up your Nest and pairing it with the app itself is a breeze: after connecting to your wifi network, a few questions about your household, the location of the thermostat, geographical location of your home, etc..., it's ready: just set up your ideal temperature and forget about it! After a week-10 days, the "learning" process will be complete and the thermostat will adjust the temperature automatically if you have set it up yourself a couple of times (e.g. lowering temperature at night and raising it again when you wake up).The "Away" feature is also excellent: when you leave on holidays for example, the Nest will automatically sense the home is empty (+based on your mobile phone's location), and set its function to "eco" an energy-saving temperature + turn off the hot water schedule. Just brilliant!Finally, the hot water schedule is also very easy to set up, bar a minor glitch in the app (Android version, at least), in which you have to set up each day separately for the scheduling to function properly instead of setting up several days at once. I would also have liked a little more flexibility in the duration of the boiler activation (it only accepts 30mins increments), I hope Nest will fix this in a future update. But these are minor comments in the overall experience.Conclusion: this thermostat can be a little pricey but it's arguably best in class, very efficient, and a beautiful object in itself. Highly recommended!