Hey YouTube, it's Tristan from Smart Home Point here. As you can probably guess, I
like smart homes, I like a lot of smart home devices, but I do not like smart
thermostats. To be honest I think that they are a little bit pointless and I
think in many cases they are waste of money, so I wanted to cover the reasons
why I think this in this video. Okay, so the first reason is that I think that
they are actually a bit expensive compared to how much money you save on
your heating bills. So to give you an example, if you pick up a Nest Learning
Thermostat 3rd gen for $240 and then you spend $80 on getting installed by an
electrician, you spent three hundred and twenty dollars. Now Nest claim that you'll
save between ten to fifteen percent on your heating bills. If this happens then
great, you've probably paid off your Nest thermostat in two or three years. However
that's based on their own claims. You might only save five percent on your central
heating bills, in which case it might take you eight or nine years to pay off
your smart thermostat - which isn't really worth it.
Equally if you have a programmable thermostat and you set it correctly, you
probably won't save any money at all with your smart thermostat in which case
you've just lost money by buying it. My second reason is that they can be
difficult to install. Obviously if you're a keen DIYer and you've done
electrics before, you won't have a problem. But this doesn't apply to most
people. Most people will look at the wiring diagrams, they'll look at the install
instructions and they'll worry they won't be able to do it and as a result
they might need to bring a electrician in to install it for them. Which is a bit of
a pity because one of the - sort of - marketing benefits for smart thermostats
is that it's easy, as it makes everything simple, and I don't think that that's
really the case when it comes to installing it. Thirdly, smart thermostats
save you money by dropping the target temperature down when you're not at home.
So if you've gone to work at 8 a.m. then you come back at 4 p.m., it'll set the target
temperature low in those... in the middle of those times (during the day). Now this
is great... other than the fact that if you have pets, that target temperature might
be set too low and hence your pets might be uncomfortably cold. Secondly if your
house has problems with damp or mold, the target temperature might be too low
for this. Now obviously you can change this... you... obviously can make
sure the target temperature is not set too low. But in my opinion this then
defeats the object of a smart thermostat because they say all you need to do is
install it and it'll do everything for you. But obviously if you've got pets or your
house is subject to damp, then you need to make sure you're managing things and
at that point I question whether you actually need a smart thermostat
at all. Okay the next concern is that the
marketing of smart thermostats is all about them "learning". They "learn" your
routines, they "learn" when you go to work, they "learn" when your children go to
school and as a result they know when the house is empty and they can set the
target temperature low to save you money. Now whilst this can work well,
modern life doesn't always work out quite like that. You might work shifts, you
might work rotas, in which case you might be in the house when the smart
thermostat thinks you're not and vice versa. Equally children get ill and come
home from school, so the smart thermostat is restricted in how much it can learn
because people will be in and out of the house at times that it doesn't expect -
and in this case you're probably much better off just getting a simple
programmable, non Wi-Fi thermostat. You don't need a smart thermostat
really, with modern life, because it's so busy, people are in and out all the
time. Okay, my next reason is that smart thermostats can use motion detection to
know whether someone's in the house or not. And this is quite a nice feature,
especially if you work rotas (like I mentioned), but there are two
ways that this motion detection can work. It can use sensors to determine if
there's movement in the house, or it can use your phone's GPS so everyone who
lives in the house can have GPS in the app, and then it can use that to
determine whether you're in the house or not. But in this case I've seen this [feature] not work
properly. I've seen people at work, they know no-one is in the house, but
their phone app is actually saying that somebody's at home and as a result the
heating is high - but obviously no one is at home. This is just a bug. You know,
phone's GPS can screw up, the software of the smart thermostat can screw up, and as
a result you can't always rely on this form of motion
detection. The second form is sensor-based. It can be in your house and
it'll scan to see whether people move around your house. This does work well
overall, but if you have a very large pet such as a very large dog then sometimes
the smart thermostat can detect your pet and think that someone's at home and
turn the heating up high - but obviously you know no-one (or at least no human) is
at home. I mean, to be honest, motion detection does work fairly well but you
just can't rely on it completely because it will mess up at times. Okay, my sixth
reason is that smart thermostats can be a bit gimmicky and some households just do
not need them at all. So if you've got a couple - a working couple - they will get up
in the morning, and they want the heating to be on high. They'll go to work, and they'll
want the temperature to go lower. Then when they come back from work, they want
the temperature to be higher - and then when they go to bed, they want it to be
lower. That's fairly... that's a fairly normal routine even if you've got a
young child, like my wife and I do. In that case, you don't need a smart
thermostat. All you need is a simple standard programmable thermostat. No
Wi-Fi, no smartness, no learning: just a simple, programmable thermostat. That's
what we have, and it works just fine. So in our case a smart thermostat
would be gimmicky and no use whatsoever.
My next point is that some people get scared of new technology, especially
people who are not tech savvy. So if you've got a smart thermostat on the wall
- whilst I'd have no problem changing the temperature and many of you watching
wouldn't either - some people who are not tech savvy would be scared of changing
the temperature. And if they are home alone, then they might just keep the
temperature as it is - even if it's too hot for them, or it is too cold for them;
and it's worth just considering this point because not everyone is techy and
a smart thermostat might actually scare scare some of your visitors, so it's
worth just making sure that they're comfortable with how to use your smart
thermostat. Okay so my next concern with smart thermostats is that you're usually
not able to take it with you if you move house. After all, if you've got a normal
thermostat you're not going to be able to just rip it out of the wall,
leaving a bunch of wires when you move house. So it could be the case that if you've bought a smart
thermostat a couple years ago, it hasn't paid itself off yet so you sort of
invested all that money in one and then you've kind of just lost that money and
it's the new owner who will benefit from your investment, essentially. Secondly
when you move house, if you've left it behind then you have to make sure you
deregister the smart thermostat so that the new owner can register it. That is a
bit of a pain - I mean it's a pain for the new owner (because you might
forget to deregister it), but it's also a pain for you because on moving day the
last thing you want to do is be on the phone app somewhere trying to deregister a
smart thermostat. So it's a bit of a potch [annoyance]. Okay so my next concern with smart
thermostats is that - as I mentioned earlier - life is busy. You might have your
children playing in a playroom, you might have people hanging out in your living
room and then other people are hanging out in your kitchen diner. This is
especially true if you've got friends over, but a modern family can work like
this as well. Now the solution to this is to have a multi-zone heating setup -
where you have multiple thermostats around your house and they each control
their own target temperature of each zone of your house. Now you can do this
with smart thermostats, but obviously this can get expensive. If you pay $240 for
three thermostats and a couple of hundred dollars to actually get these
installed in a multi zone heating setup, you're not going to have much change
out of a thousand dollars. Whilst if you do this with a normal thermostat it'll
probably cost $200 or less. My next concern with smart thermostats is that
the software on them can fail. They can have bugs, or sometimes they just screw up. Now
this might mean the software on the thermostat itself or the software in the
'cloud' that's managing your thermostat. When this happens, your house might be
set to an incorrectly high temperature, or it might not come come on at all and
your house will be freezing. And this isn't scare mongering on my part, this has
actually happened. There's been dozens of reports online of software bugs that
have resulted in people's houses being freezing cold because the smart
thermostat has 'smartly' decided not to work; and this
is a problem with smart thermostats. Okay, so my final concern with smart
thermostats is that they are collecting very valuable data about you and your house
and your heating 24/7. Now this data is very valuable and there could always be
a temptation for companies to sell this data or to 'pass it on' to their partners.
Now whilst this might sound like scare-mongering on my part, this has
actually happened. So there's a smart company called Kinsa who - as the New York
Times reported - sold a bunch of data about whether people have fevers to
advertisers, and then advertisers in this particular area actually started
bombarding people with adverts for things like antibacterial wipes... which is
a bit creepy. Equally Nest - before they got bought by Google - originally
said that they think they'll make money in the future by selling anonymized
house heating data. So at least it's anonymized, but certainly before they got
bought, Nest had plans of making money from your home's data. Equally if you
look at your Nest Terms and Conditions now, what they say is that they won't sell
your house's data 'without asking your permission first'. Now as far as anyone is
aware, they don't actually sell your data but it raises the question: why is that
sort of line in your terms and conditions? All I would say is just be
careful with your smart thermostat. Check your app, check your marketing
preferences and make sure you haven't opted into anything that you don't want
to opt into. Okay so that wraps up this video. I hope you enjoyed it. As you can
probably tell, I'm not a fan of smart thermostats. I wouldn't personally buy
one because I don't think they'd be of value to me or to my family.
But my hope with making this video is it makes you think about some of the
disadvantages of them. But obviously if they're going to benefit you then by all
means go out and buy one. I hope you enjoyed this video: if you liked it, don't
forget to click the thumbs up button and don't forget to subscribe. Thank you!