This is my first so-called "smart thermostat" and I love it, really, it''s almost everything I wanted with out the crap that I don''t want. All useful information is right there on the home screen at a glance, no cluster menu garbage to deal with, just clean and informative...
This is my first so-called "smart thermostat" and I love it, really, it''s almost everything I wanted with out the crap that I don''t want. All useful information is right there on the home screen at a glance, no cluster menu garbage to deal with, just clean and informative on every tab except the settings tab which you would expect. But even the settings tab is clearly laid out, just more involved/busy. I don''t foresee grandma having any issues here, even the most resistant to change can still turn the temperature up/down which is all you need to know to use this thing!
For the rest of us, I''d call this a "programmable thermostat" cause that''s what it is. Everybody keeps calling these a smart stat and well, that simply is not true! There is no AI here, it does not guess your mood on any given day and adjust accordingly, no, nothing like that. You simply set it and forget it via a static permanent "hold" temperature or by a programmed scheduled which you set. See, just a simple thermostat, but it has some real nice features!
I guess it''s "things I love and things I don''t" time:
--It''s a multistage thermostat for both hot and cold which is great for controlling my 2 stage gas furnace.
--I get a $25.00 rebate from Met-Ed. If you know who met ed is then you can probably get the same rebate.
--I love the backlit display and the ability to change it to any color I want.
--I love all the information on the main screen, almost everything you need to know and nothing that you don''t. It''s a clean looking interface!
--I love all of the options for both heat and cool, you can really control almost everything from one stat.
--I love the programmability, using the schedule feature I can see lots of money saved. And it''s very well thought out!
--I love the accuracy. It matches all my other thermometers and more importantly it matches itself. If you call for heat @ 71 degrees, it will shut the heat off when the room gets up to 71 and then maintain that heat within about 1/2 of a degree. In other words, what I''m seeing on my stat is 71 degrees, but "I think" when the stat reaches 70.5 it will call for heat and then shut off when the stat reaches 71.5, but the whole time my stat has a room temp of 71 and a set temp of 71. I never see that 1/2 degree shift on the display. I can feel the difference in room temp and like I said, all my other thermometers match this Honeywell stat. So that''s a tolerance of 1 degree room temp accuracy! That''s fairly impressive!
-- I love the app. It''s just like the thermostat display with one new feature, you can voice control the stat via the app. And it''s fast too, within 3 seconds of either a physical tap on my tablet or a voice command, the stat on my wall changes. Yeah, it''s a bit of a novelty thing, but it''s the main reason I bought this thermostat, for remote control and monitoring!
What I don''t love:
--The cheesy feeling wall mounting plate. I''m seriously afraid to remove the stat from the wall for fear of breaking that wall plat. Then what do ya do? I mean C''mon Honeywell, couldn''t spend an extra buck to thicken up that saran wrap you used for a wall plate? You know I would have paid for it!
--That 1 degree of accuracy thing I mentioned above, I''d really like to see that on screen cause I know it''s happening behind the scene. If they removed the "degree" symbol then they could replace what we already know with an actual number instead. Yes we know it''s 71 degrees, Celsius or Fahrenheit makes no difference since they both measure degrees of temperature. Show me 10th''s of a degree in place of the degree symbol and I''d be soo happy. Let me see that 71.5 that I know is happening behind the scene. It wouldn''t take any more real estate since you''d delete useless and replace it with useful in the same size and font and location, nothing would change aside from the information.
--The app requires you to sign your life away in terms of privacy, but what doesn''t anymore or now-a-days?
I''m struggling to think of things not to like about this whole thermostat set up and system. Yeah, I think that''s it, this thing is solid aside from the few mentions above. We''ll see how well it holds up.
My first replacement is on it''s way already, why? Because some weird things began happening. One of the main reasons I bought this stat was to control both stages of my heating system. When I first installed it the stat would call for 1st stage heat and after some time had passed it would then call for the second stage. I never timed it but I''m guessing it was about 5 min before the call for 2nd stage. Now, all of a sudden, this stat is calling for both stages when I set the desired temp only 1 degree higher then current room temp! Why is this happening, what changed? I don''t know and the Honeywell support people didn''t know either. So after about an hour of tech support and firmware updates, a little voltage testing, I have a new thermostat on it''s way. This ordeal has gained me some experience and understanding of how this thermostat works, also when and how. There is a bit of an algorithm that determines how and when multi-stage heating systems work. We''re going to add this to my list of things I don''t like!
In settings I can see when the stat is calling for what stage from my furnace, but I have absolute ZERO control over how or when the call for 2nd stage is activated. This stat uses some pre-programmed assumptions based on outdoor temp and what it learns from a call for heat until the stat is satisfied in your home. In other-words, if you want your home 70 degrees, this stat will pay attention to how long the heating system runs and on how many stages and adjust itself to an average to maintain that temperature. The way this happens is by monitoring the room temp verses the call for heat, it pays attention to the time it takes to increase room temp by 1 degree, and then the real assumptions begin. Next it will monitor outside temperature and adjust itself accordingly to "best guess" how many stages should be used to achieve your desired temperature on any given day. And that''s a no go for me, I''m tellin ya right now, for my situation, this sort of second guessing the master (me) is completely unacceptable! I need manual control over the various stages of my heating system and this stat does not allow for even rudimentary control such as time. Just give me a 15 min clock that I can adjust before calling for second stage.!? So far, no option! So to work around this issue, I now have my second stage physically disconnected from W2.
Less heat over longer run time =''s greater comfort, that''s why we have the infinitely variable heaters of today, but yesterday''s heater will work just fine in this regard if you can control the thing! Calling for both heating stages when I call for a 1 degree increase in room temp? That''s not saving me a dime let alone a dollar, in fact, that kind of thinking costs me money! Until a proper firmware update is released to address this issue, I''m taking off a star because this is a really big deal for my system and my home. Don''t ever second guess me! Give me total control of MY stat and MY heating system! Otherwise, my previous review stands and I still really like this thing, again, let''s see how well the second stat holds up.
You wont believe it (I can hardly believe it myself), but I''m tellin the truth, I''m going on thermostat #3 now on it''s way. After a 2 week long battle with software and computer, I''m now going on my 3rd thermostat from Honeywell. This time I told them to make damn sure it''s fully tested and fully functional before they send me anything. That just reverberated in a hollow skull as this was their reply below, and I quote:
"We already placed the order for your replacement. We hope you can receive it in the next days (7 to 10 working days).
If you have any other question, please let us know and we will assist you again.
Resideo Customer Care "
Aside from getting someone on the phone, these guys have been helpful all in all, but I''m a bit concerned about what what is coming. I purchased an RTH9585WF and that failed to control two heating stages logically or at all. They sent me an RTH9590WF as replacement and this thing was so broken out of the box. This one you can talk directly to the stat, well, they never could get that working, but from showing the weather to keeping room temp, this things is seriously broken! Nobody is testing this crap before it goes out the door and now I''m the butt end of somebody''s freekin joke, NOT LAUGHING! Honeywell said they are going to send me a different but similar model stat, well here, you read it, and I quote:
"Once again, thank you for your quick answer!
After analyzing the situation, we concluded that the problem is definitely your thermostat. We will replace your device one more time for a similar, but different model and we expect your thermostat won''t have any more problems."
Yeah, they expect it to work just as I did way back on stat #1, but I ain''t holding my breath! Good GOD if ya could just get one of these things to work and just work consistently it would be so awesome, but now onto stat #3 of whatever mystery model they send, will it work? If I were you at this point, I''d hedge my bets! Oh and take a look at the pic I attached which shows the original and replacement stat as of this date 12/18/2018. I''ll write another update when I know what stat #3 is all about, working or not. I''m not adjusting anymore stars until I know what Johnny #3 does, or does not.
My 3rd and I''d say final thermostat is in, it''s exactly the same as my original stat which is model #: RTH9585WF and nothing has changed according to Honeywell. At this point I now have 3 thermostats, none of which give me any control over my 2 heating stages. So nothing has changed aside from I now have 3 stats that cannot do the job I require. I still have terminal W2 physically disconnected so the damn thing only runs one stage of my heating system, but unlike the RTH9590WF I no longer have to deal with that voice control that should work, but never does!
The support team did alright by me, they could not fix the issues nor cold they recommend a suitable alternative, they just kept on replacing what is clearly broken. Doing the same thing over and over while expecting different results, yeah, Einstein had something to say about that way back when. And so I''m done here. Like I said, hedge your bets, it''s great when it works, 2 stage heating has ZERO control for the user but when the stat just works like a stat, well, it''s hard to beat! I have 3 of these things now and I really only hate 1, that RTH9590WF should burn in hell it''s so broken out of the box!
I hope some of this helped at least someone, but this has been my real life trial and tribulation and I''ve lost interest now in thermostats, for the rest of my freeekin life!