Rated 3.8 out of 5 by 332
Rated 5.0 out of 5.0 by HVACMIKE Nice buy
very nice thermostat I work in the hvac field and bought this thermostat cheaper than at supply house.This thermostat is very easy to set up and operate and at a very good price.but you do need to have an extra thermostat wire or purchase a wire eliminator.
July 13, 2016
Rated 5.0 out of 5.0 by Charlie Great Device
I had a quote from the HVAC inspector at my 60 year old home I had just purchased of $900 to install a Carrier system thermostat that would control both the Carrier heating and air conditioning systems. For less than a quarter of that and may be a hour and a half of my time, I installed this thermostat. No problem following the attachment of the colored wires. No problem shutting off the electrical supply to the gas heater, electric air conditioner and air handler. The hardest part may have been trying to remove the old thermostat without breaking it and the wall behind it. When connected the thermostat it readily found my wireless internet connection and set up was easy. It was also easy to change the background color from blue to gray to stand out less against my walls. The program for temperature changes works easily and in the same fashion as the Carrier thermostat in the home I just sold. I am really pleased each day as I walk by the thermostat and get the weather conditions outside and know the thermostat is well installed and doing it myself saved me a significant sum of money.
June 28, 2016
Rated 2.0 out of 5.0 by av8ter starting to get "glitchy"
had this thermostat for almost 2 years. It did work fine, now I'm starting to get bad readings on indoor humidity and temperature causing some problems with run times on my a/c unit.
June 22, 2016
Rated 4.0 out of 5.0 by LAGirl Love It
With everything going in the direction of all things "smart", this has to be one of the best smart options out there. I had a very nice Honeywell 7-Day Programmable Touchscreen thermostat which worked just fine; however, there were times when I found myself away from home unexpectedly only to have my programmable thermostat heating and cooling as it was scheduled to do. Granted in the fall and early spring it's wasn't such a big deal since the unit won't cycle on as often if at all but the winter and summer months were a different issue.
Now with my new Wi-Fi Enabled Thermostat whatever comes up is handled a swipe on my mobile. My RTH9580 would be a 5-star device but there is something going on with the firmware which keeps knocking out it's ability to read the outdoor temp through the 3rd party, AccuWeather I believe and it will continue to show "Waiting for Update". Once the unit is removed from the faceplate it will reset itself but that was a one time chore for me. According to Customer Service they are in the process of correcting this issue but in the grand scheme of things it's not a big deal but it is a feature I enjoy.
Now for the pretty stuff, the slim design is very slick and the option to change or even customize the background color is over the top. I really like that I can still see the display even when in power saving mode. However, one of my favorite features is its "timer like" ability. When you change the temp, it allows you to set it to hold that temp for X amount of time or until your schedule kicks in and this feature is also available through the app. Another great feature, No More Batteries. Although I needed my electrician for the install it was well worth it.
June 22, 2016
Rated 1.0 out of 5.0 by kit151 Defective unit - no refund
Worked well for heat during winter but unable to get the air conditioner to work now. A different thermostat was installed and all works fine. Honeywell is refusing to refund my defective unit that is 5 months old. Honeywell says they will replace but I have to have a technicians report to show that. I don't need it replaced as I had to buy a new one to get the ac working, I need a refund. Not sure where to go from here. Out over $200 from what I thought was a respectable company (Honeywell)
June 2, 2016
Rated 5.0 out of 5.0 by Installer Best Thermostat ever
Easy too install wi-fi friendly smart and programmable. Great experience with this product. No problems.
June 15, 2016
Rated 5.0 out of 5.0 by rick Life made easy
Great for vacation and working household.
Easy to install and Honeywell has great technical assistance if needed.
May 31, 2016
Rated 2.0 out of 5.0 by Honeywellwifithermostat Too much $ for the quality...
Called tech support several times to resolve the issue with the thermostat not reading outside temp and humidity. Keep getting a display saying waiting for update. Did all the troubleshooting and still having the same problems.
June 3, 2016
Rated 5.0 out of 5.0 by Jones Awesome
This Wifi smart thermostat is the best and most user friendly thermostat available. Easy to install. I can control all functions from my phone with my preferred notification of temp, humidity and etc. Great product!
May 17, 2016
Rated 1.0 out of 5.0 by Mac Wi-Fi Smart Thermostat
this one does not have adjustable fan speeds like my old one. Also after 2weeks & being hooked to internet the "outside weather" still does not show. Keep getting error message that it is searching.
May 17, 2016
Rated 5.0 out of 5.0 by Teri Love our high tech thermostat
This thermostat allows us to program the a/c and heat at the same time. If it gets below the set degrees for heater, it comes on and if it gets above the a/c setting, the a/c comes on automatically. You can change it remotely through Wi-Fi from other locations. The backlit panel is very easy to read and you can choose the color of the light! Our electric bill has been reduced by 20% as well. Cant wait to see how the summer months fare.
April 26, 2016
Rated 5.0 out of 5.0 by Engineer Best Thermostat on the market
This is the third one I have installed in two separate homes. Programmable, remotely accessible via WIFI, displays both outdoor and indoor temp and humidity and display can be set to a multitude of background and font colors (my wife loves that). If you have a five wire supply to your current thermostat, install is a breeze. If not you may wish to have a pro install as it is a little more complicated and requires going into the control box on the furnace. There are great YouTube videos to help with install and great info on Honeywell website. I will continue to install this thermostat anywhere I live, we love it. For the record, I am not a honeywell rep but a great product deserves a great review!
March 29, 2016
Rated 5.0 out of 5.0 by Scott HoneyWell WiFi Thermostat
Able to control environment in my home from anywhere. Easy to program and utilize. Nice piece of technology!
May 3, 2016
Rated 2.0 out of 5.0 by nathanh SOME FLAWS, POOR CUSTOMER SUPPORT
I've had this unit for 8 months. My Outdoor Temperature always shows "Waiting for Update". Customer support was not able to help. The other issue I have is the Indoor Temperature seems to immediately decrease by 3 degrees when my furnace turns on, and immediate increase by 3 degrees when the furnace turns off. I was thinking it is maybe due to the heat generated by the thermostat and airflow from furnace fan. Also, Indoor humidity is off by 10 when compared to multiple other units.
Controlling temperature via Wifi seems to work well though.
March 31, 2016
Rated 4.0 out of 5.0 by badlt Awesome Product!
Just installed this the other day and it works great! Although it requires a "C" wire and my original thermostat only had 4 wires and no "C", there is a simple video on their website on how to connect the device without a "C" wire. Also, you can purchase the Venstar Add-A-Wire module in order to regain independent control of your furnace fan.
The only reason why I am not giving this a 5 star rating is because I had to manually change the DNS settings on my router in order for the thermostat to connect to AccuWeather to show the outside temperature. All you need to do is change the DNS settings in your router to Google's (since they own AccuWeather) Google DNS servers (184.108.40.206 / 220.127.116.11). Once done, your external readings will display after a short time.
Now I just have to repaint the area where the old thermostat was!
August 14, 2015
Rated 3.0 out of 5.0 by 2centsandmore Question ...and review
Does anyone have trouble with setting the temperature above 20 degrees celsisus? I try to put it above 22 and it will not go??
Other than that, I like the look, the ability to access when I am away from home! But if I can't get it to go above 22, I may need to return it!
I am saying until the bugs are worked out- I wouldn't recommend to buy.
December 29, 2015
Rated 4.0 out of 5.0 by elsnider Pretty Good Thermostat
Bought this thermostat after my Nest thermostat got knocked off the wall and stopped working. This does what it says and is pretty easy to install using the videos. I like the app but it does not have the learning and sensing technology of the Nest. Nonetheless, the screen is easy to read and pretty intuitive which is better than the Nest because I felt like I needed an engineering degree to use that.
August 25, 2015
Rated 5.0 out of 5.0 by DM We love this thermostat, should have bought a Honeywell several years ago when we moved.
Ease of use, no problems whatsoever with installation.
April 26, 2016
Rated 5.0 out of 5.0 by Terry YouTube directions were better to use than the paper I box
Bought this product as an initial step to managing my home from my I phone. Prior Honeywell stat was a 4 wire with my the blue wire being dormant. Once I figured out the blue wire went with my white at the furnace then the installation was smooth sailing from their. The change of screen color feature is a nice feature.
The Honeywell registration site allows the registered user to give others access to the thermostat as well, which is nice.
An added feature I have come to like is that it tells me the outside temperature along with an icon to touch for the zip codes 5 day forecast.
So far, so good. I would recommend. Good value.
January 16, 2016
Rated 5.0 out of 5.0 by Accountant Very Good
Don't be afraid to install this one. The fifth (common) wire is available with cable already in your wall. Hookup was much easier than expected just choose a new color and connect to the control panel on your blower and the "C" on the thermostat.
It is much more informative and customizable than the Nest, unless you don't want more information on your system. Wireless setup is easy, and online or mobile control work effectively.
March 31, 2016
Rated 4.0 out of 5.0 by jw01 Good thermostat
This t-stat works quite well, but it does have a problem with temperature overruns. I set it 2 degrees lower and when it kicks on in the morning it overshoots the temperature, then seems to settle down. One disappointing thing is my wifi is protected and it sometimes loses it's connection and I have to disable my protection to re-establish a connection to the wifi. This is impossible when you are miles away on holiday and you wish to view your home temperature.
November 30, 2015
Rated 5.0 out of 5.0 by MKO Easy as pie
Easy to install and set up. App is easy to manage from a smartphone. It has saved us a lot of expense because we can set temperature on a schedule or change if we are going to be away for an extended period of time. My friends have the Nest and this is A LOT better.
April 12, 2016
Rated 4.0 out of 5.0 by Gino7230 RTH9580
Ok, So I decided to shell out $200 for a new thermostat partly because I have the entire house hard wired for networking and running two servers, and partly because the old battery powered one was acting up. So why not include the HVAC in the network, It was pretty easy to hook up after I realized I had to run a "C" wire to get 24 volts to the thermostat. So now it's online for about a month, So far...so good. My only complaint...during the night it changes color from the default blue to white for about a hour or so then goes back to the selected color profile..Why ???..Is it checking for software updates ???, Is it transmitting data back to honeywell so they can improve the software ???. Does it have spy software in it ???. It is a learning thermostat so is it storing data it gathers on honeywell's servers ???, Got me..but it does seam rather obvious it is doing something in the background. I am waiting for honeywell to respond to this question
July 24, 2015
Rated 3.0 out of 5.0 by Delambe367 Smart thermostat doesnt seem to stay linked to Wink App.
Purchased this thermostat because it said it was compatible to the WINK system. You can load it on the wink app, but it continues to lose connection, 99.5% of the time the wrong information is displayed on Wink app, and just looks like it is communicating, but it is not. Have reloaded many times trying to get it to hold connection and work properly, but to no avail.
Also, the display stays lite up like a Christmas tree 24/7, there should be a sleep mode, or dimming option. It is like having a light on in the middle of the night.
Thermostat does work well with Honeywell app, but the whole point was I didn't want to have a different app for each item in the household, I wanted them to all work together on one app. Not sure if it is a Honeywell issue or a Wink issue, but either way it doesn't work with Wink.
Easy to setup, and nice looking on wall. Overall I think it was a bit pricey for basically a glorified programmable thermostat.
April 5, 2016
Rated 4.0 out of 5.0 by Paul75007 Works great until it doesn't
I travel a lot for work, so it is nice to be able to reach back and monitor the temp of the house. I considered this and the nest, but the nest was too simplistic for what I wanted, and I don't like the commercials, so I went with this one. Glad I did, this thermostat fits the bill nicely. Unfortunately, after 6 months, it stopped connecting to my wifi. It shows: "thermostat's internal wi-fi is no longer working." Manufacturer warranty is good for 1 year. Should be a no-brainer, but it took some effort on my part.
Their initial reaction was, take it back to where you purchased it from. Unacceptable.
It took 2 emails, a call to Home Depot and a call direct to Honeywell (on back of thermostat) to get them to agree to send me a replacement thermostat. I mean, $200 is not exactly chump change.
But I am pretty happy, they are shipping me a new one. As a result, I do recommend this thermostat. When it works, it is terrific.
June 27, 2015
Rated 1.0 out of 5.0 by AW Didn't work
Couldn't get it to work with our system. We tried all of the suggested solutions, but no luck
March 15, 2016
Rated 5.0 out of 5.0 by Racerbob Great product!
Liked the backlite touchscreen. It was very easy to install myself especially with the Honeywell videos available online.
March 8, 2016
Rated 3.0 out of 5.0 by Tim Will not work with ground source geothermal systems in cold climates
This product does not work with a ground source geothermal system in cold climates. It worked perfectly all summer but when winter hit and temperatures go below freezing it will run only auxiliary heat. Heat pump will be bypassed as the algorithm only considers ambient air heat pumps. Spent several hours on the phone with Honeywell Tech support but it just cannot be done with this device at this time. Really hope someone at Honeywell is working on a software update :(.
February 10, 2016
Rated 5.0 out of 5.0 by DJ Great T-stat
This is one fantastic Thermostat .The only wish I have is that the dead band would be adjustable My T stat is very very sensitive I seems to kick my unit before it drops even 1 deg below set point I am told there are other settings that can control this I intend to give them a try. This thermostat works perfectly out of the box People should stop bashing products because they can't READ. The instructions state many many times that it will NOT work with out a C wire also says it plainly on the back of the packaging .As for setup if you don't know what type of system you have then this is not the T stat to self install Get a friend who is somewhat mechanically inclined. If you select one wrong setting the system could go haywire..Face it this is a mini computer and computers are only as good as the information YOU provide it's amazing how people provide negative reviews even after realizing they screwed up I am an honest review I review the product for what it DOES not what I THOUGHT it Should do Nuff said
February 23, 2016
Rated 1.0 out of 5.0 by trumpslave Forget Tech Support or Videos, Your on Your Own
This was a Christmas gift. I have a four wire system, R G Y W. If you follow the directions, this won't work. the directions suggest that you view the videos. I went to their site, followed the link...Page Not Found! Then I call tech support. After a short wait, I'm connected with a tech that I can't understand. I ask, how's the weather in India? After two more calls, I'm confused and angry. So I returned this the next day.
I think they were trying to tell me to install a separate 24 vac. transformer to the C terminal, but I can't say for sure. They couldn't tell me were to land the wires, as the language barrier was too hard to overcome. Then they said it was incompatible with my split system.
December 28, 2015