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19.1.2016

NOTE: I've updated this review four times since its original submission. Latest update 15 October 2016.If you read anything, read this. At 72 years of age, it will take a hell of a lot to impress me. This thermostat has done just that. I have NEVER ammended an amazon review 4 times, and probably never will again. This thermostat will rank at the TOP of whatever gadgets I have ever bought. It has worked FLAWLESSLY since installation at the beginning of this year. It has kept me ( and my ten (10) residents cats warm and comfortable. At 03:13 in the morning when I am feeling lousy, i just hit my Sony phone and adjust it. At times I forget to set the Away mode, might be 50 miles away and I can simply adjust it.( I have Auto Away disabled as my ten (10) resident cats confuse the hell out of the NEST and the two NEST PROTECT units. I run on Calor Cylinder gas which is hellish expensive in Ireland and adjusting the stat saves me money. Went into hospital again for a day and adjusted the NEST down a few degrees from my bed !. A bloody GODSENT, all from my hospital bed !!!I've begruded a lot of things I have bought over time, but trust me on this, the NEST third Gen. stat is NOT one of them. I truly wonder how I ever managed without the dammed thing.So, in summary? BUY IT ! For the remaining years I have left on this planet, this is the ONE thing I will NEVER regret buying even though it was bloody expensive. But... as the saying goes... YOU GET WHAT YOU PAY FOR.Albert, Founder, Cork Animal Care Society. Rep. of Ireland.Folks, apologies for the length of this review but as you might be contemplating spending 200 pounds or 250 euro it might be worth taking a few minutes to read this.This review is aimed at the UK/Ireland folks who are considering the purchase of the 3rd gen NEST thermostat. NOTE that there are significant wiring differences between the USA/Canada version of this product and the European version. As I am in Ireland I can meaningfully comment on the use of the unit here in Ireland and/or the UK. NOTE: if you have an open term boiler make sure you read the link at the bottom of this review. Nest has been less than honest about the true state of affairs re modulating your hot water ! After all, YOU are going to part with 200 pounds or 250 euro and you deserve the full story.I got this unit as I found myself on Christmas day 2015 under the surgeon’s knife in hospital. Having a gas boiler which had NO thermostat at all the system was controlled via a timer switch. While that worked well, it has some serious drawbacks. The person (lady) who came in to look after my place and care for my ten cats while I was in hospital was not comfortable in adjusting the timer settings. Whether it was freezing cold or warm, the timer would come on/off at it 'set times, resulting in a place which could be way too hot, or far too cold.Being able to control my gas boiler from my hospital bed, know what the temperature was in the house, turn it up/down or even off would have been a God sent. So.... after having been discharged from hospital I threw several hours into researching this thermostat. That is when I came across the significant differences between the USA/Canadian version and the European version.The European version uses an intermediate small unit called a HEATLINK. It is this unit which connects to the boiler and controls the boiler itself. The HEATLINK unit in turn connects either via 2 wires carrying 12volt and NOTE: IT MUST BE 12 volt and NOT NOT NOT 240 volts !!! or wirelessly to the actual thermostat itself. (note: the wireless connection is mandatory, the two wires, if used ,only sulpy12 volt to keep the backup battery in the actual thermostat charged.)If there are no existing wires carrying 12 volt available for you to use I recommend the use of the supplied NEST 12volt USB adapter to power the actual thermostat. PLEASE NOTE: while the thermostat has a build in lithium ion battery, that will not last and it is imperative that you supply the thermostat with the 12 volts it needs to work. DO NOT SKIP THIS STEP, the system will not work otherwise.As mentioned The thermostat talks wirelessly to the HEATLINK control unit. (and to your Router). All adjustments and settings, as detailed in various UTube videos and other reviews, are made on the thermostat itself. The thermostat connects wirelessly either via 2.4 or 5 GHz (not sure about the 5GHz) to your router and to the HEATLINK unit. It needs to do this so that you can control it via your app. on yr mobile smartphone.NOTE: Trying to run the NEST system without an internet connection is NOT recommended. While it will work, you cannot remotely control it and neither can the thermostat receive the occasional software updates from the NEST servers. Having no internet connection defeats the purpose of buying this unit !Installation was very straight forward. Mount the HEATLINK boiler control unit (furnace for our American cousins) close to the actual boiler. NEST supplies even the screws to do so. Connect 240Volt AC to terminals N and L, this is the mains supply for the HEATLINK. Connect 2 wires from terminals 2 and 3 to the connections on your boiler which make it come on if a call for heat is issued by the thermostat. As I have no hot water supply to control terminals 4,5 and 6 are not used by me. My Morco boiler supplies on demand hot water when a hot water tap is opened.> BUT NOTE CAREFULLY:< DO NOT connect an immersion heater to these terminals. The relays in the HEATLINK unit are only rated at 1 amp and will fry under the load of a standard UK/Ireland immersion 3KW heater which draws about 12.5 amps. It is highly likely that the whole unit will go up in fire !!!. There is a way around this but that will require a qualified electrician to install an intermediate relay (or solid state relay), which can easily handle a 3KW load. Terminals OT1 and OT2 are not used by me and apply only to units which can use open term control. IF you wish to supply 12 volt power to the actual thermostat itself (instead of the USB connection) use the final two right most connections and run wires from there to the actual thermostat backplate connectors. . As mentioned and made clear by NEST you can also supply the needed 12 V to the thermostat via the supplied USB adapter. This can come in handy if you wish to mount the thermostat in a new location and would do away with the need to run a pair of wires from the HEATLINK unit down to the thermostat to supply the 12 volts needed.Please NOTE: You must do the HEATLINK INSTALLATION FIRST and only once that is done mount the thermostat on its back plate by simply snapping it into place. As an engineer by profession, I have to admit that the whole unit is beautifully designed. If you see the small cable clamps on the HEATLINK UNIT something you cannot see until you loosen them is that the small screws which hold the wire clamps into place have miniature washers preventing you from unscrewing them too far and having 'em drop out and having to spend the next 1/2 hr searching the floor for these tiny screws.Note: the HEATLINK unit has a manual override button which allows you to run the heating or hot water by bypassing the actual thermostat. Note too that BOTH heating and hot water come on together, there is no way to just select either of them if you use manual mode. ( A nice touch is that once you engage manual override, the display on the actual thermostat prominently displays the word: MANUAL.Once you snap the thermostat onto it's back plate ( or onto the separately purchasable stand ) the unit powers up and off you go. It will do a s/w download to update its microcode (software) and take you thru the installation questions. Some really nice features...it wants to know where you are so it can pick up the nearest outdoor temperature. It uses this in its algorithms when it has fully programmed itself. There are plenty reviews out there covering the actual setup so I am not covering that here.CONCLUSION: This unit has now been up and running for a good week. I ordered it as soon as I came out of hospital and can only wish I had done it earlier. The joy of knowing that all it well, not too hot too cold, cats comfortable and this human comfortable too (although that is of lesser importance) is such a pleasure. YES, the bloody thing cost a LOT of money but i.m.o. it is worth it.The mobile app works fine and yours truly (lazy sod) now can control the thermostat from his bed, the car, or anywhere else, (cats allowing <smile>).Go for it, you will not regret it but I urge you to read the material in the links given at the bottom of this article, ESPECIALLY if you are going to use an open term boiler and think (mistakenly) that you are going to modulate the hot water supply via your NEST thermostat. NEST only recently has come clean on this and admitted that this DOES NOT WORK.This is the reason that this a 4 star review and not 5 *. Nest has been less than honest with its customers and that is something I did not expect from them.ADDENDUM to my review as posted above: 25 Feb 2016.My NEST thermostat has now been running for about 6 weeks. The key question in any purchase is: Would you buy it again, knowing what you know now? The answer is a resounding YES. It pays to very thoroughly read all the stuff you can get you hands on before you buy the unit. An example? I have 10 cats sharing my home and my life. I also have two of the NEST PROTECT UNITS. As you might know, these work with the thermostat in various ways, one being that they tell the thermostat if you are away. BUT.... the PROTECT units are very sensitive and will see the cats. It is therefore recommended to not enable the NEST SENSE feature on the PROTECT Units. To NESTS credit, they do mention this in their literature.AUTOAWAY would never come on, as no matter how smart the units are, they can't distinguish between a human and a cat (or dog) so if NEST SENSE is enabled they will tell the thermostat that you are home while you are not. I find that the normal AWAY function suits me fine, I can set it from wherever I happen to be and can also cancel it. It's a really excellent feature.The ability to remotely control the unit i.m.o. is its greatest selling point. Even in bed at 03:00 if I am cold just a few clicks on the smartphone and its adjusted. NOTE: For those of you who really want to go the whole way, Google Plus allows you to VOICE CONTROL the thermostat. So... get yr phone, say: OK Google and say: SET TEMPERATURE TO 18 (or whatever you want) DEGREES CENTIGRADE. And heh..presto... the adjustment takes places and your new temperature is set. There is a fairly detailed list of commands you can use in this voice control mode.IN SUMMARY: The purchase of this unit was one of my (few) good ideas. It is working admirably well, does what it is supposed to do and I have seen virtually no connection problems between the thermostat, heatlink, and the protect units, as well as my Sony Xperia phone. All in all this is one purchase I most certainly do not regret. I wonder how I ever managed without it.ADDENDUM to my original review, ADDED 13 April 2016Very recently NEST has implemented a version of GeoFencing. The AUTOAWAY feature now can use yr mobile phone, or tablet, to help determine whether it should go into AUTOAWAY mode. The Nest support site has a detailed description of how it works, in case you are interested. Search the support site for: HOW TO CHANGE HOME/AWAY ASSIST SETTINGS.Many folks seem to have asked for this to make the HOME/AWAY feature more accurate and it is nice to know that Nest has listened to their customers.FINAL ADDENDUM to my original review, this addendum dtd, 17 April 2016Miracles do happen. I had written to NEST support with a simple question: When I put the HEATLINK in MANUAL mode, does the hours while running in MANUAL mode count towards the total hours clocked in the monthly home report.Guess what ? I got a call today, (SUNDAY !!!) from Tim in NEST technical support , saying he wanted to answer me as fast as possible. I just about fainted. A tech support Gent ringing a customer back on Sunday ??? Can you believe it ?Anyway, Tim explained that those hours in manual mode are not reflected in the Home report hours. For the simple reason that the brains of the NEST system are in the thermostat itself and the HEATLINK is just the slave unit which does the switching. When the HEATLINK goes into MANUAL, the thermostat is unaware of that and so does not count the hours clocked up in manual mode.Based on Tim's fast and very courteous reply, I am now modifying my original rating from a four star to a five star rating. This unit has been performing superbly since its install and in fairness to NEST, they are trying hard to listen to their customers, see my GeoFencing addendum.Remember this: Even though it might not show on the outside, the NEST thermostat houses a fair amount of brains and processing power. Any device of that nature is prone to the occasional problem and in my opinion it is unreasonable to expect absolute perfection from day one. I've now seen two (2) S/W updates since I first installed the unit and they went in without my knowledge and updated the function of the unit and have worked flawlessly. So... I'm going to give it a five star rating as in my mind it is well deserved ! Albert.PS: Tim also mentioned that the modulating H/W issue on the OPENTERM units is now also fixed. I can't verify this as I am on a standard combi boiler and would love to know if the modulating issue has now finally been put to bed ?
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22.8.2017

For the 3-4 years since I had it installed, I struggled with a really rubbish Thermostat that came with my new combi boiler. For all intents and purposes it looked pretty good on paper; it connected wirelessly, was battery powered so could be placed pretty much anywhere in my house and allowed me to control and schedule the heating. What was there not to like? Well, its battery life was awful for starters - it was beginning to hammer through a set of two AA batteries to the point where a fresh set were lasting less than a month. After replacing its batteries, the process of getting the thermostat to 'talk' to the receiver next to the boiler was repetitive and tedious and often didn't work.The worst issue was simply when trying to set the temperature; I'd turn the dial, push it to select the temperature and it would often just sit blinking at me and do nothing at all, which was really frustrating!In the end, enough was enough and I decided to look at getting a better thermostat to replace that clunky piece of trash and, being a bit of a gadget nut, I started looking at the new wave of apparently 'smart' thermostats that had recently appeared on the market. It ultimately come down to the Nest and British Gas's own 'Hive' as they both received very favourable reviews - but my mind was more or less made up for me when, during the last Amazon 'Prime Day' event, they'd slashed a massive amount from the cost of the 'Nest', so I took the plunge and bought one!>>>>>>WHAT'S IN THE BOX?In the very smart packaging for the Nest, you'll find the main gadget itself nestled at the top, and beneath that you'll find a set of instructions, a power adapter & cable, a controller ring, the 'heat link' receiver, wall-mounting plate and four screws.>>>>>>STAND AND DELIVER!One thing that wasn't made clear with the Nest when I bought it, is that if you want it to be 'portable' throughout your house, you'll need to get the stand for it. Of course, you can opt to have it wall-mounted if you desire, but I much preferred the thought of being able to put it on a shelf or a cable or something along those lines. The stand, of course, does add a bit more to the cost - and I'll do a separate review of it after I've finished this one.>>>>>>FIRST IMPRESSIONS?Once I'd received the stand for my Nest, I followed the instructions on how to attach it to the stand and by the time it was all connected together, I couldn't help but marvel at its awesomeness. The actual gadget is GORGEOUS - it's all brushed aluminium and thick glass and just exudes quality, as you might expect. It's pretty heavy too, which again (for me, at least) is a good gauge on the quality of it.Despite the fact that the 'heat link' wasn't connected to my boiler at this point., I decided to power up the Nest and have a play with it - and it was a good thing I did because, as is usual with new internet-connected devices, it required some registration and setting up. I registered it with my email account, set a password, entered my location details, set a location where the actual device was going to sit in my house and several other things and eventually came to the point where it started looking for the heat link - which it obviously wasn't going to find.>>>>>>CHECK YOUR BOILER!Not long after I ordered it from Amazon, one of the first things I did was that I got in touch with Vokera, the manufacturer of my combi-boiler to check that it was compatible with the Nest. Thankfully, they came back quickly with an email telling me that it should work fine, so I set about searching the web for hints and tips on how to connect the Nest to it.>>>>>>IF YOU'RE UNSURE, GET IT INSTALLED BY A PRONow's a good time to say that I'm not en electrician, so while I'm happy with wiring plugs and mending wires, I'm not super-confident at doing more complex things - and doubly so when it came to the prospect of opening my combi-boiler and tinkering about with its innards. I procrastinated for a while but eventually decided that I should leave it to a professional, so set about the usual task of getting quotes from tradesmen. I'll save you the story of woe that invariably involved me being let down by the first company I chose (directly from the Nest website's list of recommended installers, no less) but I did strike gold on the second one and finally got it installed last week. If you're in or around West Lothian, I can highly recommend Edwards Electricals - they're a Nest Pro-Certified installer and did a grand job for a good price.The rule of thumb I would use here is that if you have any doubt in your abilities to install the Nest, get someone who knows what they're doing to install it. I'm glad I did!>>>>>>HOW EASY IS IT TO USE?Once your Nest Pro Installer has set your Nest and the heat link up, this thing is ridiculously simple to use. In basic terms, all you need to do is set the temperature and it will do the rest - the outer rim of the Nest acts as a big dial and you push it in to select things, but most of the time you simply need to rotate it left or right to select your desired temperature and leave it to it.>>>>>>A RIGHT SMARTY-PANTSOf course, with the Nest being a 'Smart' device it is able to detect when you're in the house or out of it by using a combination of the infra-red beam on the front of it to detect when you (or your house's other inhabitants) walk past it and, once you have set up the Nest app on your Smartphone(s), it will be able to also detect when it/they are close-by, so over the course of time it will be able to build a pattern of when people are in the house or not. The beauty of this is that when it thinks nobody's in, it will go into 'eco' mode and keep the house at a user-definable low threshold temperature, which should end up saving you money over the long term. Very smart indeed! And of course, once it detects movement or the proximity of your phone, it will switch to normal heating mode and warm the house up. You can of course set it to keep the house at a steady temperature or set it to turn on and off at scheduled times of the day and night - it's totally up to you.Another cool 'learning' feature it has is that it will learn how quickly your radiators are able to heat your house up and will then be able to tell you how long it is going to take until your house reaches a selected temperature. It's all very clever.Since it is an internet-connected device, it can also be controlled by smartphone apps and even from the Nest website, so it's possible to monitor what temperature you house is when you're out of it and even turn it on if you think it's too cold. This opens up the possibility of you being able to turn the heating on while you're on the way home from work, so you arrive to a nice, cosy house. In addition to that, the Nest can also be controlled by other home automation devices - I bought an Amazon Echo Dot and once I'd added the Nest 'Skill' to it, I'm able to instruct Alexa to turn the heating to a desired temperature by saying 'Alexa, set the heating to twenty four degrees'. Cool, huh?>>>>>>THE GOLDILOCKS EFFECTWith that clunky old thermostat, the temperature in the house fluctuated too much into the 'too warm' territory and, once it hard instructed the heating to turn off, it strayed too far into the 'too cold' one before telling it to turn on again. Since the Nest has been installed, we've noticed that the house is staying at a much, much more consistent temperature as it is much more intelligent in the way that it controls the heating.>>>>>>SUMMING UPWow, I am super impressed with this thing. Not only is it a beautifully tactile piece of kit, it's also brilliantly clever and simple to use. There are no doubt other features that I've not covered in this review (heck, I've only been using it for a week) but for all intents and purposes, it's so smart that you only need to tell it what to do and it really does the rest for you. The fact that it can be controlled by smartphones, computers and even Alexa as well as the device itself makes it incredibly convenient, too.
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1.11.2016

Nest is one of those rare products that is impeccable in its design, functionality, quality and ease of use. All things considered, it is also extremely good value for money as well. However, like me, you will might only realise that once you have started using Nest. The positive experience of Nest actually starts on unpacking the product, the quality of the product is evident in every detail. Even the screws for attaching the product to the wall have a certain quality about them which just is not there in a normal screw.Prior to installing Nest, for years my house has been either too hot or too cold and rarely at just the right temperature. Now, less than two days after installation, with Nest,I can accurately control the temperature inside my house so that it feels comfortable all the time.I have no hesitation in recommending Nest as a new or replacement thermostat / timer. It has certainly given my old boiler a new lease of life, which in its last life was simply controlled by a programmable clock and the thermostatic valves on the radiators. For those interested, the boiler which I fitted Nest to, is the IMI / Range / Baxi / Potterton - Powermax 185 (yes, the boiler was sold and sold again from company to company like a hot potato!). This type of boiler has a chequered history due to a lack of knowledge amongst most heating engineers on the correct maintenance and repair but despite that, like Nest, I consider it to be a design classic!! If Nest can fit this old boiler and give it a new lease of life, then it will probably fit any boiler out there. But do your own research and check the compatibility for yourself. if you are not confident to fit Nest yourself then it is worthwhile getting a Nest installation professional to fit it for you.The installation process took me approximately 2 hours. I prepared well by having my boiler installation manual to hand as well as lengths of power cable and a variety of tools such as a cable stripper, drill, tape measure, electrical screwdriver, pencil etc. I also watched a few YouTube videos on how to install. One important safety point to remember is to switch off the bolier and isolate it from the mains during installation.Following installation, I can see, at a glance, the actual temperature inside the house and also when the boiler is due to be triggered to run and when it is not. When I walk past Nest, the built-in motion sensor wakens so that Nest displays the actual temperature and the temperature that the boiler has been set to come on at. This allows Nest to be setup and adjusted very accurately for each individuals requirements. Adjustment is made by either making adjustments on the Nest display itself or by using the Nest App on your phone.I have setup Nest to operate to a pre-determined schedule because I have a pretty standard routine, however, Nest has been designed to learn your home life patters and adjusts to suit and save energy when you are out. You will need to research this a bit yourself to decide if you want to simply set a schedule or let nest learn and react to your movements.When I am away from the house, I can check the Nest App on my phone to see how much the temperature is dropping throughout the day when the house is empty and Nest has been set to a low temperature, so as not to switch the boiler on unnecessarily. In my case this confirmed that the installation of the loft insulation which was upgraded a few years ago was actually worthwhile! There being a minimal drop in temperature throughout the day.In its history file, Nest stores the boiler's operation details which allows me to check how long the boiler has had to run for each day to maintain the desired temperatures throughout the day and night. This will prove to be helpful in adjusting the Nest settings so as to be as energy efficient as possible or for monitoring the benefits of other energy saving upgrades such as the installation of upgraded windows or loft insulation etc.On researching the possibilities of Nest further, it is apparent that the integration of Nest with other household products will limited only by the ingenuity of Nest's designers (which is obviously there in abundance) and the ingenuity and foresight of designers of other products.It was a pleasant surprise to find that Nest was already able to seamlessly integrate with my Logitech Ultimate remote control. As soon as I realised that this was a possibility, it was done using the Nest App on my phone.I would have never thought that a mere thermostat could be such a joy to use and into the bargain actually provide the very precise boiler control which is necessary to make the living environment as comfortable as possible. With Nest, the days of turning thermostats up and down to control the temperature or adjusting difficult to set time settings on wall mounted programmers are gone. Nest is an absolute pleasure to use and helps us to create a very comfortable living environment, which can only be a good thing.There are not many products on the market that I would take the time to review as most are here today and gone tomorrow. However, Nest is one of those products that stands out and I have no doubt will be here to stay for a very long time. Nest has clearly been designed and brought to market by skilled and enthusiastic designers and others with a vision who are passionate and determined in their efforts. Nest has created a product which can actually help to improve our everyday lives in more ways than you could ever imagine that a thermostat could.I did my research before purchasing and watched a few YouTube videos on the installation but I still felt uncertain about it whether Nest would work with my boiler. Having now bought, installed and used Nest, I would say its a no-brainer! I hope that this review helps a few people in their research prior to making their purchase.
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11.10.2017

As per usual with my big purchases I will split this review into a Quick version and a Detailed Version....Quick ReviewPROS- Looks great- Can control the actual temperature (old heating controls was just on or off)- Easy to use (once you play with it for a bit)- Learns our patterns and starts to make adjustments for itself (such as turning the heating down at our bedtime)- Can be programmed for timer / calendar- A minimum safe temperature can be set (to stop pipes freezing in the winter etc)- Doubles as a kitchen clock (or can display the current weather)- Makes friends and family jealous- Can control with Alexa (Amazon Echo Dot)- Can control with their excellent smartphone app (both Android and iOS)- Helps save oil /energy- Keeps the house at a nice constant temperature- Works with our incredibly ropey and on it's last legs boilerCONS- Far too expensive at £199... £150 or £100 would be closer to a fair price- Needed an additional fee for a installer to fit it- Can't imagine my mother or grandmother being able to manage it even with practice so not inclusive of everyone age wiseDetailed ReviewWell the time finally arrived when I decided to pull the trigger on the Nest after wanting one for years even before they were available in the UK. We have just moved into a new house and the "plumber" that owned the house before us and installed heating controls that only half worked and after a few days they stopped working entirely. So I used this opportunity to sweet talk the wife into getting this to replace the dead control panel.I am very technical but because of the crazy heating set up in this house again thanks to the cowboy "plumber" we bought the house from even I didn't want to tackle his weird set up so reluctantly and feeling less like a man I phoned around for a installer which was yet another £90 on top of the £199 we had already paid so I would say for most people the real cost of a Nest including the installation is £300 so something to be aware of. The installer which I got from the Nest website was excellent and worth the money because even he was left scratching his head when faced with the plumbing version of a Picasso that our heating system is!The Nest for us was very easy to control from the moment it was installed and it was great having the extra control over our heating system were as before the only option was to have the heat on or off were as with the Nest we can control the actual temperature and keep the overall house heating at a nice constant 21 degrees which should in turn save us oil. I look forward to seeing the learning function working but as we have had it less than a week it will take a while for the unit to learn our patterns..... sometimes we don't even know what our patterns are meant to be.The Nest can be changed in the settings to either show the temperature such as the listing picture above or the current weather for the area or a digital clock with day and date.... if you use the weather or the date you only need to move the outside dial to see the property's temperature.I am "Mr Home Automation" and we have a handful of Echo Dots around the home for things like music, information but also to control our lamps, lights and other bits via smart plugs etc so was very excited to get my Nest and Alexa (Echo Dots) working together so I can now control the heating temperature with my voice. In addition to voice control via Alexa the Nest people have a very nice and slick app for both Android and iOS devices with the wife using the app on her iPhone and I on my Samsung Galaxy S6. The app is very easy to use to instantly changed the temperature and you can also set timers and the Nest calendar .... trust me the app really does work beautifully and means with the app you can control your home's heating even when away from the property.Everyone that has come to visit us in the new house has asked what it is and have been blown away when I demonstrate the voice control and the app and a few have admitted to being very jealous.Please don't see this next comment as being un-PC but my Mum (mid 60s) struggled to work it even when showed several times and also my 96 year old grandmother (who in fairness did better than my Mum) so even though it is very easy to use for whatever reason the other two ladies in my life (Mum / Nanny) couldn't get to grips with the device at all.Design and build quality are all excellent and it works very well so all good ticks for that however at £199 and then a further £100 (around) install fee for most people.... £300 is far too expensive and for the unit itself it should really be around £100 to maybe £150 for a more fairer price so as much as I love my Nest I don't believe I got good value for money and can only hope I can recoup some of the outlay in saved oil / energy over the next few years.
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23.8.2018

Absolutely love the Nest thermostat. It's not without it's flaws, but after owning this for 2 years, I would highly recommend this to everyone.Hardware - Physically, it's a stunning, solid piece of hardware. The screen is crystal clear, vivid and bright. The bezel is nice and intuitive to use when navigating the menu. It can be cumbersome when entering text, but you'll only need to do this during setup so it's not a big deal. The Far Sight change shows you the temperature (or the info you have selected) from a respectable distance. The motion sensor is also great at picking up movement quickly so you see the thermostat flicker on as soon as you walk past. All in all,the hardware makes the Nest look modern and eye catching.Installation - We had this installed by a Nest engineer, despite there being guides available on the web (for those confident tinkiering with a boiler). The installation took all of half an hour. The Nest has a receiver that needs to be wired to the boiler. This controls the interactions with the boiler itself. The receiver connects wirelessly to the Nest thermostat. We have ours hard wired in the hallway (replacing an existing thermostat). But the recommendation is to take it to the room that you are in, so the temperature is adjusted based on where people are rather than an empty room.Features - Our main reason for buying this was to save money and have remote control of the heating. It does exactly what you would expect in this respect. Quite nice to be able to turn on the heating when you're out and about and have a nice warm home to come back to. Before the Nest we'd often find ourselves making last minute plans on our way home only for our heating to come on at the time we'd set on the thermostat and thus heating an unoccupied home. The Nest allows us to turn off the heating remotely and it's smart enough to notice nobody is at home and to turn itself off. this feature is also great for just being able to leave the house, being confident the heating will automatically turn itself off as it uses a combination of the motion sensor and location monitoring via the app to determine whether the house is empty or not. It's also able to learn how long it takes your house to reach a desired temperature and to turn on early, so the house is at the temperature you want at the time you want it (rather than starting to heat the house at the desired time). This is a nifty feature in the winter ensuring you wake up to a nice warm house.The smart schedule is one of the weaker points in my opinion as it only tends to suit people who have a set routine. If you tend to be out and about a lot or work different days of the week, it doesn't work as you'd expect. But it does give you a nice starting point to build your own schedule off. It's also a shame you can only have one schedule though I can see why adding more may confuse matters.The app itself is excellent. It has a nice, clean UI, showing you the information you need at a glance. The schedules can be fiddly to setup as it uses sliders, but the copy and paste is very welcome. And it's a shame you can't drill down into timing more clearly. They are only showed on markers on the schedule.Alexa integration is very useful. It's excellent at responding with the temperature of the house and changing the temperature/turning the Nest on or off.The Nest has proved itself to be very stable in the 2 years we have had it and whilst I'm not sure if it has really saved us a lot of money, it's defnitely added convenience in managing the heating remotely. Nest also has a savings mode where the heating settings are tweaked by your energy provider to save you money further. I was skeptical, thinking they would turn it on all the time to make more money(!) but we definitely did see some small savings by enabling this optional feature. It's nice to see this level of integration available.Overall, I'd thoroughly recommend the Nest thermostat. It's an excellent device, with very thoughtful features that will definitely stop you from having the heating on unneccessarily. The fact that it does learn from your patterns is a bonus along with the fact that it looks stunning for an everyday device mounted on your wall! Very chuffed with this!
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27.9.2018

I have had this now for a year and believe that I can comment on the device with some clarity. Quick background. I moved into a house without a thermostat so this was the initial push to get one. First off aesthetics. The nest looks good no way about it. Clear easy to read and give the information that you need. In my case it was the temperature in the room so I could declare it’s not cold! I opted for to put this on a stand as I was not sure where it was going to be place in my house and since then it has remained. I didn’t opt for a nest stand instead I bought a third part metal stand that gave it a bit of heft and class. Instillation was done by an electrician and that runs about £100.If you know what you’re doing I would say this is a five minute job. Ease of use, well without seeing any instructions the better half figured out how to turn the temp up instinctively. Setting the schedule is a doddle too and the app is easy to use. Not that to get the best out of it that you need the app on your phone and wireless internet for the nest. Now is the nest intelligent? NO, it is not. There is no sign of learning on the nest at all. Beyond the fact that I can with a week set up a schedule if your too lazy. It doesn’t change the schedule over time. The nest is supposed to figure out the how long it takes to heat the house. It doesn’t looks like it guesses at the most using a 1-3 hour window that you define. Then there is the idea that the nest knows when you’re coming home. NOPE, it uses GPS from your phone to tell if you are away or at home. So it knows when your home but not when you’re on your way home. Also the app is a bit temperamental. By this I mean that on android any battery save or such app or setting will knock this function useless and the app will be instantly killed and never run. Even on some phones the do not disturb will stop this app from running. The other thing that I have noticed and have had to adjust the schedule to suit, is that the nest schedule temperature is what the nest will try to achieve until told otherwise. For example during the evening you will want the temp at 22 degrees until say ten o’clock when you go to bed. So at that time set it to 15 degrees. As its too hot to sleep you want the temp to tail off. The nest isn’t that smart to tail the two temperatures. So instead you can be sitting with the boiler blazing till ten when it shuts off to allow the temp to drop down to 15. This might be me wanting too much but from a smart device I would have thought the nest could figure out when to kill the boiler and let the temp drop. Instead of being on till that moment the schedule is changed, meaning the house is too hot. Also the nest should report of boiler faults. It doesn’t our boiler didn’t turn on and the nest was happy to sit there and said nothing. I would have like a message to say the boilers been on for 2 hours and the temp hasn’t changed. To notify me of an issue. In the year that I have had the device I have also had three times when the nest thermostat stopped talking to the boiler controller. No explanation and no rhyme or reason. Just stopped. What is annoying is that I would regard the device as a product that should work 24 7 flawlessly.So in summary. Does the nest work as a thermostat that is internet enabled? YES. Is the nest intelligent? NOPE. Has the nest saved me money? Maybe but I would say a regular programmable thermostat would do that too. Would I buy it again? Probably, the nest is not downright broken but it’s not all singing and dancing as I was led to believe.****Update**** I was getting random times when the nest would disconnect from the boiler. The help messages are useless. Turns out it was my wireless. Anything that uses the 2.5 range was causing the nest issues. Going forward this wont be such an issue as phones and tablets now use 5 but iot device's still use 2.5. in my case it was a computer doing updates that was throwing it off with the wifi point being in close proximity. Still it would have been nice if there was more information given on the nest why things went wrong. Even a interactive signal strength indicator would help.
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7.5.2016

Bought the thermostat along with the stand recently. My main reasons for buying were to gain the ability to control my heating remotely from my phone/tablet, but also because it looks fantastic.Yes it's expensive for sure... I'd previously invested in a z-Wave wireless thermostat, and while in theory that should have been controllable remotely as part of an overall z-wave system I couldn't ever get it to work. But that's another story.The actual thermostat is a beautiful piece of engineering, excellent design, with a lovely feel to the movement when you rotate the outer ring to make adjustments - it's also heavy, it feels substantial, which is good.I've since learned that the people who founded the company previously worked for Apple - and it shows in the design in my opinion. Everything from the way the item is packaged and presented in the box to the way the software works is kinda like a high-end smart phone!The package consists of the thermostat and also a boiler switch which needs to be placed near your boiler and wired in to your existing set-up - I consider myself reasonably competent with electrics and managed to wire it in myself - but they do recommend professional installation. Considering that part of the install is likely to involve modifying mains voltage cabling it's worth considering if you're not confident with this kind of thing. The two parts communicate via wireless and there doesn't have to be a cabled connection between the two.However the thermostat does need power - I don't think that's made clear in the fancy marketing pictures showing the thing hovering nicely on a wall - the options are either to power it using a 12v supply provided by the boiler switch or use the included USB lead and "charger" which is exactly the same as you'd use to charge a phone!To power it via the boiler switch you need to use existing wires which would be present if you're replacing an existing wired set-up, or run wires to your new location somehow. Using the alternative of the USB lead is easier, but harder to hide the cable! As I'm using mine with the stand it's on a shelf and I've managed to get the connection cable hidden in some existing trunking.I'm only controlling heating as I have a combi-boiler and therefore no hot water tank, so I can't comment on the hot-water side of things.The thermostat needs to "see" your room - it needs to point in to the room - when it senses you are walking around the display comes on and shows in large figures the temperature it's set to - if you walk right up to it the display changes to show more details, which is neat. If no movement is sensed the display turns off completely.The "learning" element is that after a few days it figures out when you usually turn the heat up and down - ie. what time you usually turn it up in the morning, down at night, etc. and then starts to adjust the temperature itself. If you have a reasonably regular routine like our house this seems to work quite well - although we do have an issue where is switches on way ahead of time in the morning to get the house "up to temperature" by the switch on time which results in the house getting too hot in the middle of the night - apparently there are adjustments that can be made to fix this, but at the moment I've resorted to switching it off manually at bedtime!The phone app, iPhone in my case, is easy to configure and link and works easily - if gives a display very similar to the thermostat itself. Being able to adjust the heating when leaving work, or from the couch, is fantastic. The app can also help the system figure out when you're not home - and the heating will turn itself down, how effective that is I don't know yet.It's also worth noting that the boiler switch isn't a standard size and won't mount over a UK 1 or 2 gang socket box - that's a shame and made it a little harder to modify my existing system - I've included "before" and "after" modification pictures to demonstrate what I had to do.Overall it's a fantastic system - likely to need some fine tuning to get it just right, certainly expensive, but with lots of nice features I'd definitely recommend it!
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22.1.2016

Nest has been getting some bad reviews lately due to a faulty software update so I feel it's worth putting another side to the story. I bought my first Nest thermostat (2nd generation) in 2013 and found it reduced our heating bills but, more importantly, enabled us to control our heating via an App on my iPhone. At that time the house where it was installed was a holiday home as we'd bought it intending to move in but sadly the job I'd counted on fell through due to the financial crisis. It was great on our occasional visits to set the heating before we arrived and walk in to a nice warm house.We sold that house but I swore I'd install Nest in our next home as we were total converts.Last year we bought both a Nest Gen 2 and the new Nest Gen 3 for our current home. We needed a 2-zone heating system so the Gen-2 has been setup to control the upstairs zone, and downstairs a Nest Gen 3 controls that heating zone and hot water. For those not familiar with the Nest family the Nest 2 does not control the water heater, only the central heating or AC. Our home was built in 1897 so has odd heating requirements that are quite different upstairs and down, hence our need for a 2-zone system. Upstairs is poor at retaining heat whilst downstairs with its solid stone walls, is one big thermal store so only the upstairs zone needs frequent heating top-ups.Our new heating system was installed just before Christmas and getting a Nest installer at short notice wasn't possible. However, our plumber's electrician was able to connect up the 2-zone Nest system in about 45 minutes and it worked fine from commissioning up until the bad software update. Happily for us only the Nest 2nd Generation was corrupted by the update and became unresponsive; the Nest 3 continued working correctly so half our system was still controllable. I was able to manually select the upstairs zone valve to permanently open and the Nest 3 temporarily took over controlling both zones and the hot water.Fixing the Nest 2 software problem took a bit of trial and error. The fixes on the Nest website didn't work so eventually I decided to remove the Nest 2 from our house Nest account. For some reason that did the trick and I was able to interact again with the Nest 2 so I set it up from scratch and re-connected it to our 2-zone Nest account and it's all working brilliantly again. The point is that even the best companies occasionally have an issue with a software update so don't be put off buying a Nest.In over 3 years of owning a Nest the software glitch was our first negative issue, which I was able to resolve after a bit of experimentation. I'm sure Nest will be a lot more careful to debug software updates in future. For those left without heating it must have been a real pain but I'm sure they'll fell back in love with their Nest once it was sorted out. If not and anyone has decided to give up on Nest I'm interested in setting up a zone controlling my workshop so I'm happy to take it off their hands!Another benefit of the Nest system is that we've also bought some LIFX lights, which connect to the Nest via wi-fi to provide controllable lighting via a separate App. When the Nest is set to Away it tells the LIFX lights, which then turn off and on randomly to make it look as if someone is home and moving around the house.Overall I'm extremely happy with my Nest setup and would definitely buy another when I extend my heating system into my workshop. The ability to independently control heating in multiple zones is very attractive and if enough people have given up on Nest due to the software glitch, hopefully I can cheaply set up zones for our bathroom and bedrooms as well so they're always lovely and warm without chucking heat at the whole house. It really is a great system and I can forgive the 3-day outage whilst I sorted out the software glitch having had more than 3 years of faultless operation!
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28.11.2016

I was dubious, a tad unhappy at the price....I am now astounded how great this thermostat is. It should pay back for itself at least within two years....or sooner given energy price rises this winter.My set up....Small semi, Middle of England, no cavity wall 1930s, exterior wall insulation, blocked most of the draughts but still some to resolve, over 10 years combi boiler, which is fairly inefficient. I like it cosy. Installed in November. Work from home so heating on all day.What it does. With some really nifty programming it works out how hot you want the room with the thermostat to be at a certain time. Instead of overshooting like normal thermostats....heating to a temperature then allowing the radiators to make the room too hot and stuffy,so you have to open the windows wide to compensate.....it turns off the radiators in advance, gliding up to your actual temperature setting. It also seems to be working out how much heat is lost through your wall fabric relative to the local temperature.It starts the day by heating to a specific temperature at your specified time. I found that I had to change the time to much later so it wasn't too hot to wake up to, but cosy when I went downstairs. You get a daily history of energy usage, indicating how long the boiler has been working in stripy bands. After a week of operation, the bands start getting thinner as the thermostat learns your behaviour, and it's cut the heating time from 7 hours to between 5 and 5 and 3/4 hours a day.Having replaced the 1st gen Hive, installed by the previous owner, I can now breath easy. We refused to pay £100 extra to use it as a smart thermostat (con trick...you can't transfer owner). The dreadful hive had to sit outside the boiler cupboard, and still kept on losing signal and had to have its batteries pulled out to reset it at least once a day. Now I have a powered thermostat with no signal drop in the living room....oh joy for technology that works! Also with the Nest there is no charge for extra services. Tweaking programming is so easy on the phone app (you have a crosshair for each change so you can easily alter time and temperature)...gone are the days of peering at an uncomfortable out of the way boiler controller, beeping through an annoying program list and having to repeat until it's right. I would note that the setting which compensated for it sitting in sunlight didn't seem to work, and I had to move it further from the window.Because we do use the Away feature, which means that when all users carry the phone away with them from home it will drop to a preset temperature, you can only instal the control program on one device per person.I can see the benefit of the Tado system, which controls individual radiator thermostats. I'm not sure that the Tado thermostat has such slick programming as the Nest. Hopefully someone will introduce a Nest compatible system as my simple valved system overheats upstairs at present.I also feel I need to add under carpet insulation downstairs (I'm not going through the hell of underfloor insulation installation). We have a strange draw effect through the airbricks which makes the downstairs cooler when the outside temperature increases! Hopefully the Nest will learn this pattern for the time being.Yes it is expensive, especially when you add the installation and the stand. But it does perform!Yes, add ons are very pricey too....I would definitely aim to add programmed light switching through Philips Hue and the smoke/CO alarm in time. Once you have the backbone of the system in, the convenience of integrated devices outweigh their relative costs.Really chuffed so far.
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4.5.2016

Product received next day in good packaging giving a good feel of quality at the start. we had an old Honeywell Y plan gravity fed system with a twenty year old Worcester boiler. The boiler is going well and works at about 90% according to the service engineer. I know modern boilers are better, but allowing for the claims on the thermostat, which essentially helps you to not heat an empty house, I can easily see how the money will be clawed back in a year. The thermostat is easy to use and understand and features a fail safe minimum temperature to avoid freezing when off, as well as a minimum temperature setting, which we set at 9 degrees to keep our dogs warmer in case we turn the thermostat right down.The third generation links to the hot water system.There are really only two benefits for this compared with the old set up, that is the ability to set it remotely from a phone or tablet, and the fact that one unit now controls all. For us no more fiddling around in a dark airing cupboard messing with the timer. By the way the Nest timing is far easier to use and see than our old 7 day programmer.I installed the heat link myself. I'm not an electrician or plumber but as someone who runs a building firm has a reasonable knowledge of heating systems and electrical systems. Our wiring centre was a mesh of wires linking to two sets of four connecting blocks. I did take the time to log things as I disconnected and was a little unsure of what supplied what on the cables which went into the wall, but after a little research found out which was the thermostat and which was the power back to the boiler. The nest wiring diagram I used was pretty good once you understood the rudiments and the only problem I had was that there was no indication of how the pump should be wired. Having found a Y plan on Google it all became clear and then relatively easy. I did have an issue with the tank stat as the wires were labelled 1, 2 and C which didn't easily correspond with the Nest wiring diagram which did cause a problem at first in that it worked but I couldn't turn it off.. But thanks to Google it too became clear and after swapping too wires all sorted. My advice, is that if you can identify the various heating parts of your system and are happy with a bit of DIY electricals (safely though) then as long as you have a wiring diagram of what you've got, most people should be able to install the heat link without the need of a "professional" so save yourself a little cash. But do your research first and don't get to a point where you can't revert to the old system.I'm really pleased and the stat is working nicely, just as the weather warms up! However, my wife has an issue. The stat is a large round lit up screen with a shiny chrome surround so in fairness, does stand out in crowd so to speak and she isn't too happy with having a modern piece of equipment on show in our stone built traditional style house with natural wood furniture and apart from the stat, not a piece of shiny chrome in sight, apart from the kitchen, which is a bad room to fit a learning thermostat. The screen times out to blank but the chrome is a bit obvious. Suggestion would be that the unit is offered with a wood effect dial which I am sure would have kept the good lady happy.That aside, I would recommend the product.
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30.7.2017

This item obviously displays it's Apple design heritage. It looks smart and is very minimalist. I have a very old (25 years+) combi boiler, and wasn't too sure if this would work with the Nest Thermostat - but it does, very well in fact. I was using a Honeywell wireless thermostat before, and the heat link was close to the boiler - in the kitchen. I removed the Honeywell heat link and replaced it with the Nest heat link (after first isolating the supply, of course), and the whole process took less than half an hour.I wasn't sure how I would control the thermostat - but it is really simply done by rotating the thermostat to choose from the menu options that are presented to you,and depressing the thermostat to make a choice - like a mouse button. It found my internet, and all I had to do was provide the password. I am trying it in the living room at the moment - but it will probably end up in the hall, where the other one was.A few questions that I was wondering about and have had answered:- Does it need a power supply? - Yes, the heat link is powered from the boiler connection, the thermostat needs either the 12v supply that you would have had if you had a wired thermostat (I read somewhere that some heat links only provide a 3.8v supply - this isn't enough for the Nest), or to be plugged in to a socket using the 5v adapter and lead supplied. This means that you will see a wire coming from it, unless you are creative in hiding it. I have ordered a stand for the thermostat, which help to place it on a flat surface and conceal the power cord somewhat. If you are placing it on a wall, you have to get power to it somehow.- How do you control it? - You communicate with the thermostat by initially choosing from the menus presented to you when you plug it in. If you have a smart phone or tablet, you can download an app to control the thing remotely. This is easy and works well. You can also adjust the thermostat manually by rotating it. If you depress it, you get menus again.- Do you have to register it? - Yes, if you want the warranty and to be able to control it remotely. You have to set yourself up an account up at https://home.nest.com/ There's a QR code inside the thermostat that you can scan to identify it.- Does it have sensors to see if you are home? - Yes, it detects if you walk in front of it, even from quite a distance away, then lights up to show you the current set temperature. You can also set it so that it knows if your phone is at home, or away, so that it can deal with the heating need appropriately. Other members of the family can register at Nest, and can then control remotely, and their phones can be sensed etc.- Does it know what the weather's doing? - If you have connected it to the internet, yes.- Does it need to be on the internet to work? - No, the thermostat and heat link communicate by wireless.- Does it work with Alexa? - Yes! I can now say things like "Alexa, set the temperature in the living room to 18 degrees", and she does :) You have to enable the correct skill in the Alexa app, then ask her to discover new devices. If they are on the same network, she will.OK - It's still summer at the moment (wet July 2017) - so I don't know if this will save me money yet - but it's certainly more interesting and fun than my old thermostat
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5.2.2016

Firstly, I suppose I must admit I am a bit of a gadget fan and my review maybe swayed by that. However, I guess if you are reading this you may be too?The Nest thermostat is a very well made, good looking piece of kit. Out of the box it feels heavy and substantial yet sleek. There is second device, the heat link, also included. Despite looking at a few videos on installing the Nest myself I didn't really understand the point of this part. More on that later.So, installation....Do you take the installation option or not? Deciding that depends on your expertise. I am not making recommendations, take it on at your own risk if you choose to. I haven't done any major electric protects but can wire a plug,hook up a stereo and know my way round my home network. With a little bit of advice and £20 of odds and ends from B and Q I got it done in an couple of hours and saved £50. Might have been quicker if I hadn't broke a plug socket with a hammer half way through! The decision to do it myself was made easier by Nest not having any installers in my area and two local electricians not returning my call.So with my set up I had a combo condensing boiler with a British Gas programme timer labelled PT5. The Nest instructions imply the Nest thermostat replaces the existing thermostat. THIS IS NOT THE CASE FOR EVERY HOUSEHOLD. My boiler was connected to the PT5 with mains power. This would fry the Nest. It turns out the Heat Link replaces my PT5 as it used mains power. I was lucky in that the programmer was positioned in my hallway on the outside of a store cupboard. I could disconnect it pull the cables through and install the heat link in the cupboard, out off sight. The heat link can feed power to the Nest and save using the usb charger included. So with that all done...The set up is fairly straight forward. The unit leads you through it, with a twist and a press to click. Menus are straight forward, asking for your post code so it knows the outside temp/weather, your WiFi password etc. It then searches for the heat link and that is about it. I found it helpful to log on to the Nest web site in advance to get an account so that I had user name and password ready. I also downloaded the app. The app and website are both very easy to use. They are simple to set up timer programs, every day having its own option to vary.It has been up and running for a couple of days now and I am very happy. Most of the time it stays dark but lights up when it detects your movement, part of the option to automatically adjust the settings as it learns when your house is occupied. The display is crisp and easy to read.. A simple twist and you can adjust the thermostat temperature to turn the heating on or off. A click, twist, click and other options are available, like telling it you are heading out so it shifts your heating plan accordingly. Only time will tell if and how much money it saves.From my point of view, from the cool design and interface, to the simple yet useful app, I am a big fan. I know there are plenty times where we have gone out and left the heating on or come home earlier than planned knowing the house will be cold. These will be things of the past as long as I have access to my phone or a website.
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7.7.2020

I got my nest heating controls today first impressions looks ok but a few things bothered me first of all I was lucky that my old salus IT500 setup had the exact same wiring so it was pretty easy to do the wiring or so you would think!Installation asks you to mount the heatlink to the wall after installing the wiring I strongly suggest you do it this way otherwise its a right c*** to do it on the wall. The clamps for holding the cable in place were not to my liking they certainly were not designed for round cable in mind! That being said I carefully flattened a section of the outer casing on the cable so it would fit better. Then I had to tighten the screws very carefully because I think if id been a bit over zealous I would have snapped it.This plastic isnt designed for this task! See photo’sThe outer cover on the heatlink is a bit poorly designed the clip piece on the top that holds it in position to keep it on after the screw in the bottom is done up is useless and this is the main reason this product lost a star for me. You can see in the photo’s how I can easily pull the top part away from the heatlink.Now the thermostat unit is very solid its so heavy I think there is a metal block inside it lol. Setup was fairly easy however there were no instructions on how to use the learning thermostat I had to look online to learn how t o use it. I thought it was a touch screen but its not.I initially used a phone charger to power the learning thermostat although there must be a battery inside as it works without it plugged in. so maybe that explains the weight of it. After this I dug into my plug drawer and found a suitable 12v transformer plug those ones you typically get what I call black plug transformers. So I wired this upto the learning thermostat’s base doesnt matter which way the wires go. Im glad the base has a spirit level in it that is a nice touch it makes mounting it to a wall easy although I just screwed mine into the bottom of my staircase (wood) about 1.5m off the ground.The app is a bit fiddly especially trying to make a schedule that was a royal pain in the a** but if you want to set the same for every day of the week you can copy monday and paste it to the rest of the days of the week.I havent had time to look into the app in depth but it seems comprehensive. Lets hope it lasts longer than my salus did. That lasted about 5 years although I cant complain too much 5 years is pretty good. But the salus was 1st generation so it wasnt as good as this I needed an extra device powered and plugged into the router. Having said that, now I power the thermostat so I guess swings and roundabouts.This is an early review I may change in the future but hopefully I dont need to.
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25.2.2018

We have two HVACs and two programmable thermostats. One was upstairs. We didn't use the programmable feature because our routines are not.......that routine and, if we aren't planning to be around the house for long, no reason to run heat or AC and then take off. But, we do run the fan to circulate air for the upstairs unit and that meant running up and down stairs to turn on or off and sometimes forgetting we had it on. The HVACs are old and fan motors, even in manual on and low speed, consume almost 500 watts! So, we don't like to run unnecessarily.Had been looking at remote control thermostats for a while and had dropped Nest from list due to comparative pricing. And,we had concerns about internet connection with any of the remote thermostats. Automation electronics can provide way too much information for nefarious purposes and with information going to anonymous locations on the net, who knows who can tap in and see status. Call me paranoid but………………..Upstairs thermostat failed. So, replacement was necessary. And, COSTCO had Nest 3 on sale. We had Nest CO/smoke detectors that we really love the quality and function and lack of issues in more than two years. So, took a chance and bought two Nest 3s at COSTCO.We’ve installed and have been using for about two weeks. They are fantastic! Small issue with common wire on installation but that was easily resolved on my own. The app is fantastic and I’m (spouse not so happy about this) am having a great time checking on and adjusting temperatures and settings when away from home. The learning function hasn’t developed a full schedule yet and, it seemed to me that we won’t want to use it anyway because as “smart” as it may be, it cannot have the foreknowledge of our plans that we do and those affect whether we even turn the systems on or not at any given point in time. But, with the home/away sensors, maybe it will work after all. We’ll see.I was impressed with the sunblock feature which I did not know it had because one thermostat is on a wall where, at certain times of the year, sunlight from a skylight shines directly on it. But alas, although it worked, it turned out that the overall temp in that corner can get up to 78 even on a day when it is only 58 outside (yesterday) and with ecomode set at 50/78, that kicks the AC on during a winter day. For not, I reset upper eco to 80 and we’ll see if that works.Overall, we’re impressed and loving these two thermostats so far. If that last at least ten years, we’ll be highly satisfied.
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29.1.2017

Well I have now had the Nest Thermostat installed for a week now and I can only say I am completely sold on it. Okay it may have cost a bit and some people may say it is an unnecessary item but for sheer ease of use and control I honestly don't think it can be beaten.I chose to complete the installation with a friend who has done similar work before and let's just say it wasn't as straight forward as some may imply. This isn't a criticism of the Nest but more a case of some confusing wiring in my house following some building work which resulted in wires of different colouring! After a lot of head scratching and cable testing the various wires were identified and the heat link and thermostat were installed.Seeing the screen light up was a relief I can tell you!After the installation everything else went according to plan and was so straight forward. The only real pain was entering my network password which is over 26 characters long and therefore a little time consuming! Once setup the device synced with the account and applied an update and the Nest was ready to go. Over the course of the week we have tinkered with scheduling for both hot water and heating which is far more than we could ever do previously and checked on how it is working.Early impressions of the Nest are very high as it is so easy to use and control whether it is at the thermostat itself or via the app. Even my wife who tends to roll here eyes when I purchase something like this has been sold on it and as a family we feel we have a far greater level of control than we ever did with the previous thermostat and timer we had. I like the daily reports of usage, the Farsight feature (displaying the weather forecast in our case) and above all else the ability to switch on/off wherever we are so that the house is heated as required rather than when empty. We know there is the geofencing function but we decided against this for the simple reason it doesn't feel essential especially as we may appear to be heading home when really we are passing nearby. Maybe we will change our minds in the future but for now we are content with the control being by us as per schedule or when we are thinking about heading home.In summary a great device which is real a pleasure to use, but on the strength of my experience I would recommend getting a professional to help with the install if you are at all uncertain. If you feel confident then it should be okay but take lots of photos as you complete the work!
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