Side by Side Comparison of: Honeywell vs Lux

Having 2 independent conventional A/C systems I was pretty apprehensive. I replaced 2 existing thermostats provided by Comcast Home Security... a service I grew to dislike. I did not have a problem setting up both thermostats on the Honeywell web site (in preparation for installing new thermostats). I suggest doing this before swapping out the old thermostats. Double check that you have entered the MAC ID and CRC data EXACTLY as provided in the package of info that came with the thermostat. Again... it worked great for me to get this setup done before actually swapping the thermostats. I think this can be done using the cell phone Ap but. I did this on my PC... I did this step on my big screen PC. There were no issues wiring the new thermostats as wiring matched the existing thermostats. With new thermostats installed it was very easy to log them into my router and finish the device connection (aka registration) on the Honeywell web-site. It worked perfectly first time. Lastly... There are a ton of options available for tweaking your air conditioning needs to your comfort level. There is also an option for dimming the brightness of the display. Here is how: select "menu" "preferences" "backlight" and raise or lower the brightness. I rarely write a revue... but I was exceptionally pleased with this product. Don't forget to install the Honeywell thermostat AP on your cell phone

Well this thing is amazing. If you don't have a c wire or the ability to add the c wire then purchase the adapter. I had the ability to add the c wire. The auto mode is now hidden deep in the menu. Just google search and the instructions to active auto switching between heat and A/C. Don't know why this was buried that is my favorite feature as in the Chicago area switching between heat and air is common in late winter early spring and late fall early winter. My old thermostat did that but recently failed to do so (broke). I was bummed but have to say not anymore. Can access the thermostat from anywhere with the app on smartphone or by logging in on computer. Works with Alexa and love the interface. Also has a smart learn feature that learns how long it takes to get to desired temperature in the morning so when you wake it is that temp. That is working and is very nice. Great buy, awesome unit!

Really nice, easy to program, the screen is very easy to read. The remote access via WiFi and app is very fast and dependable. In my set up is 2 heat and 1 cool with a heat pump/AC. The two stage heat works very well but you cannot program how you want the AUX or emergency heat to work. The heat pump is 1st stage and the 2nd stage is electric heating elements. A email from Honeywell explained it since I could not find it in any documentation. You can set it for "emergency" heat only and this locks out the heat pump compressor so only the electric elements are being used. The installation instructions were very good for both the wiring and programming. It does have a "Smart Response Technology" option to determine how long it take to get the temperature to the set temp. It also has a "Utility Schedule Options" feature for easier programming for parts of the country that have different rates for electric power at different times of the day.From Honeywell:...When you leave the system in heat mode it runs the heat pump for heating and if the heat pump is not able to satisfy the heating requirement of the house, the thermostat turns on the backup/second stage along with the heat pump to assist in heating the location.At this time the thermostat will show “Auxiliary Heat On’ on the display. The thermostat uses a pre-programmed algorithm to determine when the second stage should turn on....

Just installed today and it went very well. The product needs the "C" wire but that was a simple and easy install as the existing wire had two unused leads. I just connected one of the extra wires to the Com terminal at the furnace and then connected the other end to the C terminal on the thermostat. After that, the set up was very simple. Just follow the prompts. Then download the app to your phone and your computer and you're in control. A plus for me is this product does work with Alexa (Echo). I had read that it did not but it does. This version also says it has a five year warranty as it is a "Pro Install" product, I guess. Some answers to questions said this model did not work with Alexa however, there is a skill and app that allows it to work very well with Alexa. That is a small thing, really, but fun. I've only had it a short while but I've used my phone app to change the settings as well as the computer and it works flawlessly so far. In my area, this model does not qualify for the energy rebate from the electric utility (ComEd) although the Honeywell Lyric model does. However, net price was only $10.00 more than Nest or Ecobee and I have had good luck with Honeywell products.

Amazing thermostat. Works flawlessly. The app loads instantly, is very responsive. The programming is straightforward and easy to double check that things have been set to your liking. It never does anything I don't want it to (unlike my old analog that reset itself randomly) likely thanks to a lack of batteries over hard wiring with C wire. I can only assume the battery contacts can loosen with repeated use, and can occasionally power off and reset itself.A few things about the C wire:The install was a bit tricky for my situation, because I had to pull out additional wire from the wall, and the original installer left almost no slack. The C wire was cut completely back to the point of not being visible upon initial inspection.I had to pull it out 6 inches and cut all wires again, and restrip. The same was true for the wires on the air handler itself, the C wire was cut, and I had to cut the whole thing and restrip/reattach each wire. I had to do this for both air handlers in my house too (two separate units).Once the the wire was in place, it took only a couple minutes to attach two anchors to the wall and fasten / level the mounting plate. After that, the unit slipped on with no trouble. Once I flipped the breaker back on it fired up instantly, I went through the setup, and it took about 20 minutes to update so it was accessible. The programming was straight forward, also allowing you to use between 1-4 timers in a day. I appreciate the hold until function, as I can never worry about remembering to turn it back onto programming. I can crank the heat right as I wake up, and have it automatically turn back to regular programming an hour later as I'm leaving the house.A few things about the unit itself:The touch screen has VERY crisp and bright color, much like my iPhone. The unit itself is very small and sleek, maybe 1.5x the size of my iPhone 6. The unit has a bright white backing, with clear plastic over that very similar to the old white Macbooks. It has pages of preset colors, as well as completely adjustable background colors which I thought was silly, but have grown to like. I realized that it's one more thing to match, and one more reason it looks so aesthetically pleasing to me. Change it to your favorite color, to match the wall, or to match the season! I thought the touch screen might be annoying to use, yet it's quite the opposite. I never find myself mashing the screen to get a button pressed. Beyond that, it has a very simplified menu.Overall I love this thing, not one problem. It's exactly what I was looking for in a WiFi thermometer and has more features than I thought I would use. I would highly recommend them to a friend.

Installed two of these Honeywell TH9320WF5003 WiFi 9000 thermostats in our Community Clubhouse building where previously the thermostats were not managed and possibly ran unsupervised 24x7 for years even when the building was unoccupied.Once the common 24V wire was identified, the rest of the installation was a breeze. Took about 5 minutes each to install and configure.Configuration on the WiFi network was simple and the Honeywell Connect web application very intuitive.So far, accuracy and stability of the set temperature has been impressive. I found that it did not work well in "Automatic" mode when the outside temperature was about 68 degrees and we wanted inside cooling to about 72 degrees, the thermostat called for "heat" instead.My solution was to operate the thermostats in manual cooling mode instead.The Honeywell Connect Android app works well and closely resembles the web-based version of the app.The thermostat controls may be customized to send a myriad of notifications to user's email if desired. Remote management via Honeywell Connect may be easily shared with designated individuals who need control over the settings.In addition, I mounted the Honeywell CG511A1000 Medium Thermostat Guards over the thermostats and while the guards are not intended to be 100% tamper proof, they work well in my situation. Photo shows the thermostats with Honeywell Good Plate ( covering the old footprint).

Works well on my HVAC unit with emergency heat. Not all the features of my old thermostat (I wish it would switch from heating to cooling on it's own and would automatically switch to emergency heat if needed) but an affordable and quality item. The wiring for my old thermostat was not the same as any in the instructions. I just took a guess but before turning on I decided to call customer service. I don't think they had experience with the way my other thermostat was wired and they put me on hold for a bit. They confirmed that I had guessed correctly and I was set to go. I liked the fact that while it's physical size was smaller than my old thermostat, there was more room to accommodate the wires, so I could leave some extra wire in the case instead of having to push it all back into the wall.

I purchased this thermostat mainly for a specific feature that my old thermostat didn't have...the temperature swing setting. The old one was locked in at plus or minus 0.5 degrees. This was a problem because I discovered my air conditioner unit was oversized, so this plus the 0.5 degree swing setting was causing my AC unit to have short run times. This caused both inefficient compressor operation and humidity removal. After installing the the new Lux thermostat, I set the swing value to 5 (1.25 degrees), and my run times went from 5 minutes to a minimum of 10. I'm very happy with the results, and the cost was well worth it as I'm using less overall power for the same amount of cooling. Another thing I find very useful on the thermostat is the energy usage feature...It keeps track of the time the unit is on for the current day, previous day and total time since reset. This helps me keep track of my energy usage so I'm not surprised when I get my electric bill. I didn't have any issues installing or programing it. The instructions that came with it plus the ones I downloaded from the web were easy to understand.

I've owned Lux programmable thermostats for over 20 years and have 4 of them in my house currently. The back light stopped working on a 10 year old unit in my bedroom, so i decided to purchase this unit. Installation was extremely easy, uses the same mounting holes, but is considerable smaller than my old unit. This left me with an unpainted portion on my wall, which either needed to be painted or purchase the larger back plate. I choose to paint, which took all of 5 minutes. I read the instructions, downloaded the full user manual which was I read fully. The unit is extremely intuitive and, in the end, was a waste of my time to download and print the entire manual. The only setting that I changed was the recovery delay from 5 minutes to 2 minutes, which is done with a din switch on the back of the unit. Although we have only had this installed a few days now, we like it. The numbers a large enough to read without glasses, bright enough to see until it's dark and touching the unit anywhere lights it up for 10 seconds. Temporarily override and hold functions work the same as the older units, but are much easier to access. Finally, most utility companies are offering $25 back on the purchase of programmable thermostats and $100 back on WiFi enabled units. If this unit last as long as my others have, I'll be extremely pleased.

My thermostat konked out on me and I am a wanna be do it yourself-er widow. So I watched you tube video on how to install a new thermostat. Looked pretty straight forward. So I bought this one, best buy, good price, big numbers for my old eyes, simple to program. So I'm all nervous about installing it. Got the power turned off on the furnace/AC at the circuit breaker. Then got the cover off. OMG those wires and screws are tiny!!!
Got all the wires labeled. (Stickers Provided) Took off the old mounting bracket. Installed the new one. (Sheetrock anchors provided too.) Got the tiny tiny wires and the tiny tiny screws (apparently they are all that way) in the right slots. Put in the batteries, programmed it (simple) snapped it on the mounting bracket. Turned on the power and PRAISE THE LORD it works!!! Girls ROCK!!! I was so jazzed. It really was pretty easy to install, I just was so outside my comfort zone. So ladies this is the one for you!!

Forward:This is more than a review and experiences with the Lux Products TX9600TS. It includes what was important to me when looking for a new thermostat, the short list of the others I researched, and why I chose this model. The reason for replacing my previous thermostat, a Honeywell T87 style mercury type thermostat, was because it would run for a short period of time, stop, then restart again. The T87 worked fine with the forced air furnace we had several years ago, but ever since we upgraded to a 93% condensing furnace, it cycled so frequently that register air didn't have time to warm up adequately. We have a standing joke around here. "We have a furnace that heats with cold air."So why do people have rapid, short cycling problems like this after upgrading from say forced air to high-efficiency condensing furnaces in cold climates? My theory is it might stem from the differences in their their sequence of operation.A. Forced Air furnaces, i.e. 80% and less. 1 Thermostat calls for heat. 2. Burner starts. 3. Circulation fan starts after the air from the heat exchanger reaches 120-140 degrees. 4. Heats house. 5. Thermostat stops giving the call for heat. 6. Burner shuts off. 7. Circulation blower continues to circulate air until the air coming out of the heat exchange cools to 85 to 100 degrees so there is never any cold air exiting the register.B. High Efficiency Condensing Furnaces, i.e. 90% plus. 1. Call for heat. 2. Draft motor starts and pulls in cold air from outside. 3. As soon as furnace detects draft, it starts the hot surface igniter. 4. At the 30 second point, the gas valve opens. Flame detector must see flame within 2-3 seconds. 5. Circulation blower turns on, no matter what temperature the heat exchanger is. 6. Heats house. 7. Call for heat from thermostat ceases. 8. Gas valve is turned off. 9. The draft motor continues to pull in wicked cold air through the heat exchanger for the next 30 seconds, while the circulation blower blows air across the now wicked cold heat exchanger. 10. Thermostat senses the cold air, and starts a new cycle with a call for heat 25 seconds after the circulation fan stops from the previous cycle.Establishing my requirements:As our climate changes and we edge closer to the next ice age, winters have been getting colder, and things were getting a little out of hand this winter, so I decided it was time to get a thermostat with some control. There was no requirement for a programmable thermostat, but my requirements were:1. One I can control the temperature between the cut in and cut out time. That means I have to be able to understand HOW it decides to turn on and off so the I can determine if it meets that requirement.2. Doesn't require a degree in computer mysteries to use.3. Doesn't rely on batteries.4. Sensible price, which to me means less than $100. I had some fun looking at the NEST, Ecobee, and Prestige, but they were never contenders..The Short List:My first problem was to determine which products within the price range didn't require a battery for operation. That eliminated all of the digital, non-programmables. I came up with the following list:Honeywell RTH7500D Conventional 7-Day Programmable Thermostat $59.95Honeywell RTH7600D Touchscreen 7-Day Programmable Thermostat (Touch screen version) $79.95Lux Products TX500U Smart Temp Programmable Thermostat 5-2 Programming $37.97Lux Products TX1500U Smart Temp Programmable Thermostat 5-1-1 Programming $39.97Lux Products TX9600TS Touch Screen 7 Day Programmable 7-Day Programming Thermostat $63.67Researching and Reading the Documentation:I studied the manuals, and called and e-mailed both Honeywell and Lux Products. Both were very responsive, English was their first language, and they were knowledgeable.Contacting Lux:I sent LUX an E-Mail one night with several questions about the 3 different models I was looking at. The following morning I received a call. It was a very good conversation. During the conversation I mentioned how I like the ability to adjust the sensitivity on with what they term as swing. He was quick to point out that the TX500U and TX1500U current versions had removed swing. They have an a and b suffix.on them when you open the package, E.G.TX500Ua, TX1500Ua, and a different manual, even though the packaging and marketing still shows TX500U, TX1500U. He said they decided to retain swing on the TX9600TSa. The TX500Ua and TX1500Ua have something called Duration. If you enter 12 minutes, it will not turn on more than 5 times and hour. It heats up to the recommended temperature and stops, and won't start again until after the 12 minutes expires, and only then when heat is required. The temperature span between start and stop temperatures is fixed. Revision "a' was 1.8 degrees, and the "b" revision was further refined to 1.4 degrees. That would mean the true temperature variation could be more than that between cycles if the furnace was prevented from starting. On LUX models with swing, you put in a number between 1 an 9. Each number is 0.25 degrees F, for a maximum of 2.25 degrees, which I thought wasn't much of a range, until I learned swing doesn't work like I thought. Swing works on both sides of the set point so if you you enter a 2, it does turn on when the temperature dips below 0.5 degrees below the set point, but it also doesn't shut off until the temperature reaches .5 degrees above the set point. Thus to 2.25 maximum swing equates to a 4.5 degree spread between start and stop, which should be enough.Contacting Honeywell:Honeywell doesn't have swing except in the Prestige line which is only available through contractors. The DIY (Do-It-Yourself) models have only Cycles Per Hour, however they generally discourage it. I called Honeywell, and after they explained how it worked, I can understand why they discouraged it. For instance, for a high efficiency condensing furnace the recommend setting to 3 cycles per hour. What that setting does is divide an hour into 20 minute periods, and further divide those in half, with a 10 minute window where the system can be on, followed by a 10 minute window when the system cannot be on. Because of my disbelief, I made multiple calls to confirm this. That is actually quite different from the LUX. The LUX could run the entire hour if it had to, to get to the cut off temperature, and then not allowed to start again until the period expires. The Honeywell CPH sounds more like a unintelligent 50% duty cycle enforcer. I can understand now why so many reviews on the Honeywells mention frequent cycling as a problem, and why they encouraged me to go with the $300-$500 Prestige line to get swing. I also mentioned to Honeywell how they didn't have any temperature calibration ability. I was assured that they are set accurately at the factory, and there would be no problem with the temperature being off. However, the only thermometer that I know of that you can trust over time are the mercury and alcohol ones.Decisions, decisions:I leaned toward the Honeywell. I thought it looked nicer. The Honeywell also has daylight savings time built in, but not the LUX, in fact the Lux only uses day of week and time, not the date, which made me think, Micky Mouse. The other thing I liked was that the Honeywells have the option to auto switch between heating and cooling or manual. The feature doesn't matter to me, but it does indicate well thought out. I tried to rationalize that the Honeywell has been making thermostats for well over 100 years, as has Lux, so I shouldn't have to worry about them having a cycling problem like I had then. However, I had trouble coming to terms with that position when one of the major reoccurring complaints about the Honeywell on the web from people in cold climates, is rapid cycling, which is also why I was shopping for a thermostat in the first place. What I needed was something that stays on long enough to heat the house, which means the only cure was is a broader temperature span between on and off. There is only so much you can do to reconfigure the furnace, and I'd already proven furnace tweaking wasn't enough to fix the problem. The sad truth was the Honeywells didn't have a usable work-around for a frequent cycling problem. That left me with the 3 Lux Product's thermostats on my shortlist. There is only $2 difference between the TX500Ua and the TX1500Ua, so I dropped the TX500Ua from the list. The only difference that mattered to me between the TX1500Ua and TX9600TSa was the TX1500Ua uses Duration technology while the TX9600TSa uses Swing. They both have their advantages. With Duration, the temperature span would be 1.8 degrees for the "a" and 1.4 degrees for the "b". Thus, it is a fixed span, unless it has to wait out a Duration period, at which point the temperature range would drop until the appropriate amount of time has passed, and the thermostat would send a call for heat. However, as with the Honeywell, it would make the problem worse. Instead of doing very short cycles back to back, it would short cycle followed by a long wait. With the TX9600TSa, I set the Swing/Temperature Sensitivity, and it would cycle based on temperature, but there would never have to wait for a wait period to expire. Swing was the only method that can fix a problem like this. I didn't like paying an extra $30 for a touch screen that I didn't want, but the others didn't have the capabilities necessary to cure the problem. The Lux TX9600TS also advertises Battery Free Memory storage.Purchasing the thermostatI paid more money and bought locally because the furnace was cycling constantly and I wanted to fix it now. The TX9600TS packaging had no hint of whether it was a TX9600TS or a TX9600TSa. It did have a little -004 in small print after the model on the bottom of the packaging. Once it cut open the packaging, the instructions clearly stated TX9600TSa. The first thing I did was make sure the instructions said it had had Swing, like the Lux representative said, and they did. Then I was curious what the differences were between the TX9600TS and TX9600TSa. After going down their manuals side by side, the ONLY differences I could found were they made the TX9600TSa much easier for people to unsnap from its base, which is a complaint in the reviews. The only other changes a saw were slight differences in explaining the same features. The manual has the same number of pages, with the same items on each page.Initial setup of the thermostat:I read the instructions carefully. I didn't want to mess with the current thermostat during such cold weather, 10 degrees, until I had a plan. You need two AA batteries if you are going to do "arm chair" programming, so I got a couple of their recommended AA batteries. At first, I thought less of the Lux because of its use of dip switches instead of the soft setup the Honeywell uses. However, with the Honeywell setup, you need to deal with codes from the manual. E.G. You enter 0180 for the Heating Fan Control, and enter a 0 for gas or oil heat, or 1 for electric heat. Another nice feature of the Lux is that you can change a dip switch setting that can turn off all of the schedules, and use it like a regular thermostat, which I fully intended to do, but decided to leave it the default and change it later. The TX9600TS also advertises Battery Free Memory storage. Many give you so many seconds to change the battery, which indicates that you need batteries to maintain your settings during a power failure.Installation:The next thing was to check if I had the wiring necessary, and how things were currently wired. It was quicker to shut off the furnace, pull the cover, and check out the thermostat wiring from there than to disturb and have to re-level the current thermostat. I learned that the house had 4-conductor thermostat wire, which meant I was one wire short to be able to run the thermostat off furnace power, instead of the battery power. Fortunately, it didn't appear the wires were secured inside the wall, and unsecured is standard standard I hear. That meant I could use the old cable to pull a new one. I bought 22 feet of 8-conductor thermostat cable locally, and while there, picked up a 97 cent thermometer that read the same most of the others in the rack. I shut off the furnace switch as well as the furnace and air conditioning breakers. I took pictures of the furnace and thermostat wiring connections. It indeed turned out that pulling a new thermostat wire was far simpler than I had feared. Soon I had the new wire connected to the furnace and thermostat base and rechecked. I read where some people were upset because the touch thermostat would slide on the wall, so I put some thin 3M foam double-sided tape on the back of the base, away from the raised mounting areas, positioned the base with a level to make it look good, slid over to the right so the wiring came through on the left end of the thermostat base opening, and pressed the base against the wall. Having it to one side allowed me to mount a little nylon wire holder to the wall so the wire could never fall into the wall by accident, and the thin double-sided tape held the base in position while I drilled the new mounting holes in the wall. Then I pushed some insulation in around the where the wire where it comes through the hole in the wall, and put tape over the hole around the wire to prevent a draft from between floors from influencing the thermostat. Next I snapped the thermostat to the base, turned on both breakers, turned on the furnace, turned the thermostat to heat, and the furnace started. When you touch the display, it lights for 10 seconds, and you can faintly hear an oscillator while it is on. It surprised me that the display was not as bright as I thought it would be. That is probably good since most people probably just run off the batteries, and at night you wouldn't want it very bright. However, I was expecting the cool factor like I saw in the advertising, but what I received was what was practical.Final setup:I was initially confused during the setup only because I had difficulty accepting that it was that simple. I was thinking I must be missing something. Not so. You press the Menu button and press the on-screen scroll button to scroll though the settings. Then it's just the Next, OK, and Exit on-screen buttons. If you don't want to use the programs, but have them available, it's still easy. Simply press the on-screen Hold button. After that it behaves like a manual thermostat, but you still have all of the features such as Filter Monitoring, time, day-of-the-week, etc. that according to the manual you wouldn't have if you change the dip switch to have it act like a manual thermostat. It also does not lose the Hold setting when you change the temperature. If you want it to run the schedule, pressing Hold again releases it to run the schedule, and the display changes from Hold to Program Mode. When I touch the current temperature on screen, and nothing happens other than the screen lights up. If I touch the set temperature on screen, up and down arrows appear to adjust the temperature. The Fan On-Off fan switch is simple mechanical switch and the the Heat-Off-Cool switch are simple mechanical switches on the right side, just like a manual thermostat. This is what I like because in Spring and Fall, everything is turned off. In the summer after it gets hot, we simply switch it to cool and have the thermostat control the temperature, and turn it off when we don't want it to cycle anymore. Likewise in the late fall after things get quite cold, we turn it to heat for the season. However, for people that live in moderate climates where it might be cold at night, and hot during the day, they would prefer the Honeywell, which can be optionally enabled to automatically switch between Heat and Cool. The Honeywell doesn't not seem to have the problem of short cycling in moderate climates. When I spoke to the Lux representative, who is also from Michigan, I talked about how I planned to set the Swing to 8, so I would have 2 degrees up and 2 degrees down. He said he has the same thermostat, and said 4 turned out to be enough, so I set it to 4, and set the temperature at 62. This means it would kick in if it dipped below 61, and shut off as soon as the temperature exceeded 63.Experiences:1. It worked as expected right away.2. No more short cycling issues, but I was also in for some surprises. Even in 20 degree weather, it takes well over an hour to lose 1 degree of house temperature. That means with even the 2 degree span, the heat would be off for more than 2 1/2 hours. I didn't know how slowly the house lost heat until now. The way it was cycling before, it acted like the windows were open. It also makes sense to me now why Lux tightened the temperature hard-wired 1.8 degree temperature span on the TX500Ua and TX1500Ua to 1.4 degrees on the TX500Ub and TX1500Ub. However, it also makes me very glad that I picked the TX9600TS where I can adjust the span anything I need, down to .5 degrees. (A setting of 1 will cause a call for heat at .25 degrees below the set temperature, and cancel the call for heat .25 degrees above the set temperature.)3. My concern about others in the household being able to understand the thermostat if I left it configured for optional program mode turned out to be unfounded. It was a 1 minute class, and not even the least technical had a problem understand what to do.4. Nobody wanted to run a schedule because they wanted to do it manually. Two days later they were talking about a running schedule.5. On the Honeywells, people complain about the loud click when things happen. I found no complaints about the Lux in that regard, so I didn't know one way or the other. I can report that the sound of the click of the internal relays inside the Lux are very faint. You need to be close by to even hear them.6. Both Lux and Honeywell state they are temperature calibrated at the factory, and you should never have to change anything. However, at least the Lux does has a way to do it if necessary as things change over time, instead of replacing the thermostat. The old thermostat and the thermometer I picked up at the store agreed on the temperature. The Lux read between 4 and 5 degrees high. I simply set the calibration to -5.Summary:For me, I don't believe I could have done better than the TX9600TS. I discovered how useful Swing is. If I lived in a moderate climate, I would have no doubt gone with one of the Honeywells. Might one of the two Honeywells worked for me? I can't know that, but from the complaints around the web, reading the documentation, and talking with Honeywell, they don't have anything you can configure to cure the short cycling problem if you encounter it."Well that's my story and I'm sticking to it."

It was easy to install and replaced a 20 yr old Honeywell. It's been two months and so far it is working great. Initially it red two to three degrees lower than the unit it replaced. Love the app remote function.

purchased this thermostat 1 year ago (my 2nd purchase of this... we love it).. it worked perfectly until last week. All of a sudden our heat would not kick on. After hiring an HVAC tech to come take a look and replace a part on the furnace to attempt to fix the problem, it was narrowed down to the thermostat being faulty. We swapped this out with our old one and the heat is working again. Calling them regarding warranty replacement... hopefully that goes smoothly!

I replaced my two older 1-stgage home HVAC units with Carrier Infinity 2-stage furnaces and Carrier Performance 1-stage AC units. I’d had older programmable thermostats for a few years and decided it was a good time to get new thermostats now with wifi and more bells and whistles. The Honeywell TH9320 was a good choice. I am 59 and installed them myself but decided first to run new 18/7 wiring since I only had 5-wire connectivity and needed more conductors because I wanted the thermostat to control the 2-stage furnace (With only 5 wires I could not make the extra W2 connection. The furnace can control its own 2-stage heating without the W2 connection from the thermostat but in case you don’t know it that works on a pre-determined timer basis – stage 1 for a few minutes then stage 2. I wanted to let the thermostat control the 2 furnace stages directly, based on temperature differential between set point and actual room temp, so I needed more wires.) For my installation I ran a 7 wire cable and used 6 wires. Your needs may vary. The TH9320 was relatively easy to install but I would have preferred screw down terminals instead of spring lock – screws provide a more stable connection. Since the thermostat is small, probably smaller than the one you’re replacing, you will likely need a cover plate to install behind the device to hide marks and holes from previous installations. Make sure you get the correct plate. It’s not included and good luck finding the right one. I could not. I ended up purchasing two Honeywell 50002883-001 cover plates and taking a Dremel grinding tool to remove the ridges around the mounting holes to allow a flush fit. Took 5mins and fit perfect after that. I don’t know why I had such a hard time finding a wall plate that is compatible with this specific thermostat.Once installed, the thermostats came up quickly and connected to my home wifi w/o issue. After the first install I input my preferred heat/air schedule while standing there before I even put my tools up and discovered later its quite easy to edit the schedule from a phone, laptop, or pad. Once I registered the devices on Honeywell’s web site they began to update themselves. I have only had them a short while but they seem to work just fine. I do like the automatic circulate air feature and you can program on which schedule segments that will occur (wake-up, leave for work, home again, sleep). The app and web site work well and shows both thermostats clearly on my phone and laptop. What you are able to control remotely is a subset of the options available while interfacing ‘in person’ with the thermostat.There are a couple of things I hope can change in subsequent updates for this thermostat:1) I can not determine, while remotely connected, if the system is in an active state. I can tell what the indoor temperature is while I am logged in from my iPhone and if it is supposedly following the schedule but I can not tell if the system is actively cooling or heating or if the fan is currently running in recirculate mode. Would be nice and seems appropriate to know exactly what is going on at the time I check on it.2) I don’t see the capability to view overall usage over time. Would be nice to have a log or some sort of record of heat/cool/fan usage over a period of days/weeks/months.I am giving the TH9320 4 stars. It functions well and looks good. I expect/hope to use mine for the next several years. One star off for high price, spring-loaded push to lock wire connections, difficulty in finding a wall plate solution, not being able to tell remotely if the HVAC system is running, and no usage logging. Perhaps I could have taken two stars off for these shortcomings but everything is relative and the TH9320 compares well to the other leading thermostats on the market now. However, I think it could be better.

It has been a month since purchase of this product and the servers that allow you to register your device have been down the entire time. I waited a week after installation to call Honeywell and make sure the problem was not on my end and I was informed that it was known "the servers are down" and there was no estimated time of resolution.Two weeks after my first call I attempted to call Honeywell support again and after going through the myriad of menus a voice came on and said something to the effect of "due to high call volume we are hanging up on you" and then it hung up -thanks Honeywell!The reason I paid a premium for this device is for it's premium services - mobile access. Otherwise it works exactly as my old "dumb" thermostat did except I no longer have manual control of my HVAC fans as I had no C wire- the fans will only run when the system is heating or cooling (a compromise I was willing to make for the promise of mobile control).Until this is resolved I would not advise purchasing this unit.Update:Servers are up and the thermostat works as advertised. The android app has worked for me consistently. Overall I'm satisfied with the choice compared to other "internet of things" thermostats.Update 2: After a year I'm happy to upgrade this to 4 stars. Solid performance, no issues connecting remotely. Happy with my purchase.

Excellent product, in my case for remote control from thousands of miles away for a part time residence. Only caveat thus far is that I put it in Away/Vacation mode before leaving and, while I can access status on line, can no longer control the device. Not sure why this was designed this way, but there it is. I'll have someone access it on site and fix that. Compliments to Honeywell for having phone support on Sunday either 855-733-5465 or 877-271-8620 - wade through the menus.

Update to my review below. I just installed my thermostat and I LOVE it. It was VERY EASY. The way I described below is how I set mine up. I also used the "business" instead of "home" and "Heat Pump" options.*****************************************************************installed of "Forced Air" options. Someone here said the "business" option gives you more options.My current thermostat is an Aprilaire unit. There are 6 wires connected to it (C, W2/Aux, R, G, Y and W O/B). The installation manual for the Honeywell WiFi 9000 shows 5 wires being connected (C, R, G, Y, and W O/B). I believe my 6th wire should go in the "W2" slot of the Honeywell 9000 but I don't want to make a mistake with my AC/Heating unitI called Honeywell and the guy the answered the phone rejected to help since the Honeywell 9000 is a contractor version. He said I HAD to hire someone to install it. He said he is not allowed to help with this unit. He was also a bit rude like being bothered by my call. I really wish they had the "rate your experience" after the call but... oh well.(1) be aware you might not be helped by Honeywell. I might give them another call and see if someone more helpful answers the phone this time.(2) The Honeywell WiFi RTH9580WF, according to reviewers here seem to be the same as the 9000. Part of the instructions for the RTH9580W appear to be more clear to understand. So far, I'm planning on following the wiring based on this model. I hope I don't regret it (cross fingers).My system is a Heat Pump (outside unit), AC unit in the attic ( believe this is called the furnace/HVAC). The inside unit in attic also handles the emergency heating. I believe this is where the 6th wire should be used, not shown on the WiFi 9000 installation guide.The unit itself arrived promptly and in good shape. It's certainly very different than my old thermostat (see pic of old thermostat with 6 wires).

Been very pleased thus far. No issues with displayed temp not matching ambient temp - and I am using the 24v dc wire from the heat pump to power the unit, with batteries as backup. I've read several instances where people have had an issue with the 24v dc connector causing their thermostat to 'run warmer' than the room really is. What I can say is that we have noticed a huge difference in how our heat pump performs. It seems to run much more efficiently - it runs more frequently but much shorter cycles and the house is much more constant, temperature-wise. I would have given the thermostat 5 stars, except I had to drive quite a way to buy a 1-foot length of thermostat wire to put in a jumper to make the heat work correctly (after a call to tech support). If you do NOT jumper the W1 terminal from yellow with a heat pump with emergency and aux heat, you will only get heat if you run the thermostat up to the point where it calls for aux heat. The old thermostat did not have this jumper in place. Regardless, I think they should provide a jumper wire - not everyone has a piece of thermostat wire just laying around. Other than that, I am completely pleased with the performance, especially for the price of this unit.

I chose this digital thermostat because of it's larger digits. I don't need a programmable model but it's easy to set this to SETHOLD so it does not revert to automatic setback if you know how. The booklet is clear and they do have U.S. phone support. I have 2 and like the clean design. It's a 2 piece design so you can snap off the thermostat from the wall plate. The only disappointment for me is there is no provision I can find to set the backlight always on. It's located in a dark hallway and requires me to push the button to read the display. I do have power provided by the furnace controller but I think the battery inside may power the backlight. I suspect but am not sure that if the battery were to become exhausted the thermostat might just revert to it's preset values. This would definitely not be good for my needs and I must thus watch the battery indicator for this. Maybe I can confirm this one way or the other with their phone support. Then again maybe I should just remove the battery and see what happens.

Pretty easy to set up. Set one day, can copy/paste to others. Kind of a pain to cycle through all days/times/settings to adjust weekend days, but in reality shouldn't be doing this very often. Took one star away because the ambient temperature was about 2 degrees F off. Had to adjust it. One other small complaint. If you want to temporarily change the setting away from what's programmed, there are two buttons available after adjusting: "Next" and "Hold". If you (or someone in your household, lol) accidentally pushes "Hold", it holds that temperature setting indefinitely, ignoring all programming... Make sure to use "Next" if you want next programmed setting to kick in when it's time. For the price, I'm happy with my purchase.

So far this product works great. I installed it myself with little problems. If I have on peeve or two it's the instructions. There are 6 choices they give you depending on your unit. If you're like me, I just know it's a gas furnace.The help line only open Monday -Friday 9-5. So if you do it on the weekend like most of us, you are SOL.If you purchase it from Home Depot, don't ask tbem. All of them are clueless and nothing like their commercials.But besides that..nice unit.

I purchased this because the Honeywell that came with my new house was not programmable. Installation was very easy since the letter scheme on the old Honeywell matched the Lux. The new thermostat looks very cool and modern in my house since it is basically just a big touchscreen. For some reason I was expecting the cool blue backlight to be on all the time but it isn't and I guess that is probably good since it would drain the batteries pretty quick, it only lights up when you touch the panel. The touch screen is very nice and I had no problem using it to program the thermostat. My local Lowes carried this TX9600TS model as well but it was almost $20 more than on Amazon. I'm very happy so far and I would recommend it to others.

I recently installed this in my apartment, as what i had before was solely a temperature gauge.The thermostat it replaced was a heat pump system(the most wires)I was constantly adjusting the thermostat when I woke up, when i left for work, when i came home, and when I went to bed.I bough this has a permanent addition to the apartment, and being permanent i did not want to go with the app enabled devices that were more expensive.This thermostat met all my expectations. it has a 4 time 7 day programmable setting with an adjustable offset. The offset prevents the A/C from toggling repeatedly, which helps keeps the electric bill lower.It was easy to install and took me around 45 minutes in total.The only downside is that it is a bit time consuming to setup the different time and day temperatures, and the system is unforgiving if you make a mistake with the settings. This is a small downside, as I do not constantly change the settings, but still something to consider.

The panel housing (plastic) attaches to the wall mount (plastic again) with three tabs (plastic!) of exceedingly cheap construction. When you press the screen to make any sort of adjustment, the unit wobbles and jiggles. Inexcusable on a thermostat that costs more than some air conditioners.

Honeywell is missing the opportunity make it a great thermostat. It does everything it says just like it should, but it lacks nice features like humidifier control, geofencing, or remote sensors. It goes through the trouble of measuring inside humidity and polling accuweather data for outside info, but won't control a humidifier. The difference is two more screw terminals and a relay. Probably $1. Instead, you have to buy a honeywell humidity controller and wire a whole separate item for another $60. How hard would geofencing programming be to implement? Not very. Would make a good thermostat great and save the consumer extra utilty costs to justify the price of the thermostat. Finally, its a wifi thermostat. Why doesn't it partner with wifi remote sensors? Who knows. Again, another opportunity for greatness missed.Personally, i'd prefer a feature rich wifi thermostat without a display of any kind (app only) for under $50. Afterall, most of the features on this thermostat are simple software upgrades that should exist on the lower cost wif honeywell model but don't. Why? Upsell you to this one at double the price.

I recently looked at buying a Nest, Lyric, or this thermostat (Honeywell 9000). After a great deal of reading, I ruled out the Nest. While I think the Nest is the nicest appearing of the three stats, I don't like the Nest's allowance for wide temperature offsets/overshoots. It seems the Nest sometimes has a mind of its own controlling the climate system. Plus the Nest is all solid state, without relays.I bought a Lyric thinking it would be the stat for me. After fussing with the Lyric, I returned it. It is a good stat, but I just didn't like certain features. Geofencing on it seemed only semi-reliable. The Lyric is solid state too--no relays. It felt overpriced. I wanted a little more control over my stat's operation, so I decided to give the Honeywell 9000 a try.The Honeywell 9000 so far seems to have a good balance of features and familiarity/reliability. This thermostat may not quite have the neat factor of the Nest, but it still looks pretty darn cool. With a white bezel and compact size, Its design is understated elegance. Installation is a breeze. Documentation is very good. Instructions are easy to follow. The thermostat practically sets itself up with easy to navigate wizards/menus. Setup does not require an app, but programming setbacks are a snap with the online wizard. I like that this thermostat is a more hands than the Lyric or Nest. It is possible to fine tune it more than the other 2. This stat shows the humidity on the display too. Oh yes, this model has relay(s) which to me are less likely to damage heating and air equipment in the event of failure. Sometimes the touch screen on the Honeywell 9000 feels like it is a little "first generation", so there are indeed a few tradeoffs. All in all, I like this stat a lot. Honeywell did a really good job with the 9000.Addendum: After owning this thermostat for several months, I've become annoyed with how it handles auxiliary(stage 2 heat) in this very cold weather. Unfortunately there is no way to change temperature swings or cycle times. As such, this stat is short cycling my equipment.A word of caution--this stat is a very basic stat with zero advanced installer options. Buyer beware.

Just got this thermostat today and installed it.****I just want to start out by saying that the current top two yahoos posting a review saying this thermostat has adjustable swing times IS DEAD WRONG! I took their word for it and ordered this thermostat based off of their reviews.****Yeah I'm a moron for taking their word on it and not calling the company etc etc etc.. I just wanted to put this out there so no one else made the same mistake. And for you two or anyone else that wants to argue the fact.. No, offset is not a swing time setting. The offset is to adjust the temperature + or - if the thermostat is off right out of the box.So quickly first impressions of the thermostat...Pros:Beautiful, great customization of screens and program settings, WiFi is awesome, really cool to check and change temps from phone/web, Touch screen rocksCons:No swing setting (Huge for me), Can't program the unit from phone/web. Smaller than most older thermostats (not that this is bad, just be prepared to fill holes and touch up paint)

I have mixed feelings on this unit. On the one hand it is easy to program and override as necessary. On the other, you cannot lock/unlock the screen remotely, something I really wanted. Also this particular model is the "contracter" model which has 2 access codes, one which I cannot change. This really defeats the point of the whole lock idea as that code IS ON THE BACK OF THE UNIT!

Update 5/12/15: DOWN GRADED from 4 to 3. The constant "site under maintenance is a true pain in the ass. This is why I would recommend to stay clear of anything that ISN'T a true IP based device because you have NO control over their site. This is now becoming a true nuisance. It's a great device, but the main feature (being web based) is utterly useless if you can't access the thing for hours at a time. Now it's becoming A LOT more frequent.Get your act together Honeywell or step aside.Update 12/22/14:Love this thermostat...My wife is pregnant for the 3rd time and this time, she's having weird "cycles" of hot and then cold. To top things off, she's had some complications, so anything to make her life a little bit easier is extremely beneficial . Instead of having to walk all the way upstairs to adjust the thermostat whenever she gets a "cycle", she whips out her Iphone5s and just adjusts it. One thing that is often overlooked, is the fact that, no matter what she changes the temperature to...as long as she doesn't "Switch that temperature to be permanent", it'll go back on it's schedule once one of the programmed times is hit. It's another convenience type thing that you don't appreciate until later...well at least we have.It has saved us money as well. Roughly $35/month off our bill for the past 6 months. Figure it has just paid for itself($210) on month 6. Now we do live in TX...so our most expensive electric months are now in the rear-view mirror so I doubt I'll see any real savings until end of April/May now...but nonetheless...this device is now paid for. Being able to adjust the temperature from anywhere allows people who are serious about saving money, to actually achieve it...The programming feature will still save you money, but to squeeze that extra few dollars a month out, just be a bit more proactive.Old Review:Easy to install, works as intended, looks great. It will save you money if you figure out a schedule that works for you.For some reason I was expecting it to be an IP thermostat like the Foscam cameras, where they have their own built in program where it doesn't connect to a big corporation and you have to open the port to connect out. However, I was wrong. In order to use the web service, you have to agree to Honeywell's ToS, which I'll summarize here for you, "We own the information from your thermostat and can sell/do anything we want with it at will." So if you don't want that information on the web, don't use the web features. It's still a good device even without.

The unit is very good and has been in service almost 1.5 years. We do not program, but could.Anyway, I am not thrilled about the switches on the side. Very hard to operate between positions. All controls could have been digital.

Not so easy to program as it sounds. Tip: put the battery in, program it, then plug it into the wall: sitting down under a good light helps

my wall didnt have a wire for power so i ad to use the battery, the unit buzzes when the blue back light comes on, its really loud and the back light never stays on, so you cant see the temperature in the room. although i think its a great unit/value for the price, it could be better in functionality and ease of use.

The Lux TX9600TS offers some advanced features at a reasonable price. It’s capable of performing well, but there’s one critical caveat.The thermostat can be powered by:- Batteries alone (2 AA alkaline batteries)- 24 volts AC alone- 24 volts AC with battery backupIf your thermostat cable has a 24 volt AC common wire, it can be connected to the thermostat's “C” terminal to provide the power. This can be used alone or in addition to installing batteries as a backup. According to the manufacturer, the thermostat has non-volatile memory for the program, but you will have to reenter the current time and day if the thermostat has no power source for more than one minute. For convenience, the thermostat can be programmed while removed from the wall if batteries are installed.I tested the Lux TX9600TS with my heat pump over a three week period in heating season and made the following observations.When powered by batteries alone the thermostat performed well –– accurately displaying and controlling room temperature. In Heat mode with the thermostat’s swing setting at +/-0.25°F the room temperature differential measured by a min/max thermometer 6” from the thermostat was no greater than 0.7°F.After connecting AC power to the “C” terminal, the temperature displayed by the thermostat suddenly decreased 2°F, then slowly increased 5°F (a net increase of 3°F) as if the temperature sensor was being heated by the power supply. Adjusting the thermostat’s calibration improved the accuracy of the displayed temperature, but the magnitude of the error fluctuated over time.In Heat mode with AC power, noticeable temperature swings and prolonged cycle durations occurred even though the thermostat’s temperature swing was set at its minimum of +/-0.25°F. The room temperature differential was high as 2.4°F measured by a min/max thermometer 6” from the thermostat.After disconnecting AC power from the “C” terminal, the temperature displayed by the thermostat suddenly increased 2°F, then slowly decreased 5°F (a net decrease of 3°F) as if the temperature sensor cooled until it reached ambient temperature. At this point the thermostat accurately displayed the ambient temperature at the default calibration of 0°F and provided good temperature control.The disadvantage of powering the thermostat by batteries alone is that you must remember to replace the batteries when they get weak, and make sure to have fresh batteries on hand.As a result of the poor performance of the Lux TX9600TS when powered by AC, I purchased a Honeywell RCT8200A (identical to the Honeywell RTH8500D), and began comparison testing.Although the Honeywell lacks some the features of the Lux, including adjustable swing, adjustable offset and energy usage monitor, it performed very well when powered by AC –– accurately displaying and controlling the ambient temperature. The room temperature differential measured by a min/max thermometer 6” from the thermostat was no greater than 0.7°F, matching the Lux’s battery-powered performance.Both the Lux TX9600TS and the Honeywell RCT8200A / RTH8500D have an optional recovery feature. With recovery enabled, the thermostat attempts to reach the desired temperature at the scheduled time by changing the temperature setting early.The recovery feature isn’t just for comfort. A thermostat with a good recovery algorithm can save energy with systems that have a second heating stage that’s more expensive to operate than the first stage (for example, a heat pump with electric resistance auxiliary heat). During recovery, the thermostat gradually increases the temperature, maximizing use of the more efficient first heating stage, and minimizing use of the second stage. If you have such a system, you can save money by using the recovery feature even if you don’t need it for comfort.The recovery performance of the Lux and Honeywell models I tested is somewhat limited because they are not capable of monitoring the outside temperature and adjusting the recovery accordingly. That capability isn’t expected at this price level. These thermostats estimate the recovery time based on previous performance.I don’t have the capability of measuring the energy use of my heating system while controlled by each thermostat under identical conditions, but I did observe the recovery durations. I allowed each thermostat to “learn” how long it took my system (a heat pump with electric resistance auxiliary heat) to reach the programmed temperature setting for several nights. The Lux TX9600TS began recovery no more than one hour early. The Honeywell RCT8200A / RTH8500D began recovery as long as three hours early in order to minimize use of expensive auxiliary heat.Comparing the displays of the two thermostat, the Lux has larger characters, but the Honeywell’s light green backlight appears brighter and provides better contrast than the Lux’s blue backlight. Both thermostats turn off their backlights seconds after touching the screen. This annoying behavior is understandable if the thermostat is operating on batteries, but I’d prefer the backlight stay on at least one minute when powered by 24 Volts AC.If you want a thermostat with adjustable swing temperature and adjustable temperature offset between the first and second heat stages, the Lux TX9600TS is worth considering, but only if you are willing to power it with batteries alone.I would rate the Lux TX9600TS as follows, contingent upon its power source:4 out of 5 stars if powered by batteries alone.1 out of 5 stars if powered by 24 Volts AC.

I like the thermostat. I have issues with it though. About 4 times a year the unit "freezes" up. The thermostat acknowledges that the actual temperature but it never turns the ac or heat actually off. When this happens I usually wake up in the middle of the night with my house at about 60 degrees and turn the thermostat to OFF. I let it sit like that for a while and turn it back on a couple hours later and it usually performs fine from there. I am not sure why mine does this and reading other people's comments it does not seem like anyone else has issues with this. I never had any issues with my old thermostat and it does not happen often but I worry about it when I go out of town. Good unit otherwise

The thermostat looks great, is easy to install, and has a lot of features. However when the back lite is on, it makes a high audible buzz noise. I knew going into it this may be an issue, and when I tried to show my roommate how to use it, first thing he said after the screen lit up "whats that buzzing sound?." You will hear it and it only buzzes when you touch the screen and the back lite goes on. For sixty something it is a value compared to what's out there, as long as you are okay with the buzzing it will make.Second thing I want to point out, the model I got from Amazon was the TX9600TSa.... The "a" is the newer model.

Pray you don't have any problems. As like others, Honeywell will not honor the warranty if you installed it yourself. Its a shame the the warranty support is nonexistent, other wise its a nice product and the app is pretty decent.

Worked great for three months, then electric bill tripled. regular heat would come on, heat pump, then in 30 seconds strip heat came on. had now idea till received electric bill. removed and replaced.

Struggles to register temp within 3 degrees of actual room temp.

I didn't give it 1 star because I love the screen display and the easy to use menus. The problem is that it just doesn't control my A/C efficiently--it short cycles my compressor up to 8 times an hour. This constant cycling would wear out my compressor in no time. There is no setting on the thermostat to control cycle times or swing times. When the A/C shuts off, the indoor temperature on the display drops 2 degrees, even though the actual temperature is 2 degrees higher. Within a minute, the indoor temperature on the display goes back up 2 degrees where it should be. Sometimes the A/C will cycle on when the indoor temperature on the display is lower that the set temperature. I'm sending this turkey back and returning to my old Honeywell RTH7600, which works better, but without all the whiz bang features of the TH9320WF. After all, if the high tech stat won't control my A/C properly, why have it. Looking Pretty Isn't Good Enough!

Setup an account [...] and follow a few setup questions on the touch screen thermostat. Just need to make sure you have a C wire 24 volts. It only took me a few minutes to get the thermostat registered. Really like the online program and the phone app.Will buy again next time!The thermostat failed 18 months since purchase. It has a short and blew a fuse. Honeywell will warranty it however it will take 6 weeks if it is in stock. So I am now stuck buying another one since I cannot wait 6 weeks!

Although the description states there is a five year warranty, you are not able to exercise the warranty if you have an issue. Honeywell makes you go through your installer or dealer for warranty and will not honor it directly. Honeywell makes a similar model for homeowner installs. Buy that one.

Very complicated install and directions in comparison to store bought

I liked the product fine while it worked. Just over two years (25 months to be exact) after I installed it, the temperature wouldn't go above 61 degree with the thermostat set at 70. This went on for over a week. I thought something was wrong with the furnace, so I called the repair guys (not cheap for me because I live very far out in the country and the repair guys have to drive over 30 miles to get to me). Anyway, they looked it over and said the furnace was operating fine. On a whim I turned the thermostat to 80 and the temperature came up to 70. A thermostat of this quality should last much longer than two years.

Easy to install however the room temperature appeared to be at least 3 degrees higher that it actually was. I compared it 2 thermometers that I placed in the same area as the Lux unit. I know are very accurate. Don't waste your money. I decided to return it for refund. I later ordered an Emerson unit. Much more accurate and more user friendly and less money.

I gave this device several months of trial. However, it has proven to be almost impossible to program and certainly impossible to see in normal lighting conditions. Even the backlit surface which only lights when you touch the screen has very little contrast between the so-called numbers and letters and the background.In programming you have about 4 to 6 seconds to enter your data to program the machine. Then the light goes out and you can go longer see it. It proved it proved impossible for me to program properly and certainly to check my data out. I have not returned it, but I have purchased a replacement.

The thermostat looks nice but unfortunately has flaws. When powered from the AC when back light is on it emits annoying high frequency pitch. I would have accept that but the thermostat was failing to maintain temperature within the programmed range. The shift was up to 2 degrees. I had an older and cheaper RITE TEMP that was working better and which I put back in place.

The thermostat "works" in the sense that it reliably turns the furnace on when the temp is a few degrees below the set temperature, and turns it off again when the temperature is a few degrees above the set temperature.However, the temperature sensor is inaccurate and unreliable. The thermostat routinely displays the current temperature as 3 or 4 degrees warmer than the actual temperature (as verified by independent measurement). That forced me to redo my heating program and set higher values for all of the temperatures. This took about 5 minutes, which is not a huge deal, but it was something I've never had to deal with on any other thermostat.More importantly, the device emits a high-pitched whine whenever you activate the touch screen. The noise isn't terribly loud, and it goes away as soon as the screen shuts off again, otherwise I would have returned it already.Given the bugs, I fully expect this device to fail soon. When it does, I will not be replacing it with another from this manufacturer.

Do not buy this. It is only under warranty if a contractor installs it, which is nowhere on the description. Mine broke after 2 years and now I have to buy another one because Honeywell will only replace it if I have a contractor install it. Crazy.

I purchased and installed this unit on my own. Once connected the unit did not power up. I called Honeywell customer support and am told this unit is only to be installed by a licensed electrician. Otherwise the 5 year warranty is voided. They were "unable" to help me further. Amazon, why is this unit being sold to the public with absolutely no indication of this stipulation?!? I am told by Honeywell tech support the RTH9580WF is an "equivalent" unit meant for residential use and DIY installation.

WIFI. Horrible Wifi implementation. I love Honeywell but this is pure crap.The thermostat will not connect to ANY wireless network if your SSID (network name) has any spaces, special characters, or is too long (I don't recall the length), and it doesn't matter how new or old your thermostat firmware is.Mine arrived with firmware 02.01.07.00. With this firmware, you cannot use numbers in your wifi password if you are using WPA2_AES. For example, 12345678. The device will say "Connection Unsuccessful" " The password you entered is invalid". However, if you change the password to "abcdefgh", it will connect. According to the WPA2 standard, passwords can be any combination of printable ASCII characters (basically, anything that is on your keyboard) that are 8 to 63 characters in length. The Honeywell cannot handle this. Tech support doesn't have any solution for this, according to them.FIRMWARE. Once it connected, the firmware updates started rolling in. After a few minutes, I was up to 02.03.00.00. What is the newest firmware available, you might ask? There isn't anyway to know and Technical Support will not tell you. They also cannot push updates if you aren't receiving them. Anyways, now with this new update, you cannot join ANY wifi network using WPA2_AES regardless of what password scheme you try. You must roll back your security to the less secure legacy WPA TKIP. WPA isn't considered secure anymore by any respectable IT administrator.TEMPERATURE. There are also several other issues with this thermostat. I had to adjust mine to "-2°F" in the Advanced Options menu to get a close enough to accurate room temperature. Several owners report that the temperature isn't accurate no matter what they do. I have noticed this as well and it has not been addressed in any firmware releases. This is likely because it is a physical hardware design failure. For instance, when the device boots up, the reported internal temperature rises about 5°F. If the back-light is on for too long at any decent brightness, the temp rises 1°F to 2°F. The temperature rise also occurs during automatic firmware updates.DEAD THERMOSTAT. Speaking of firmware updates, you have no control over them whatsoever. Did the power flicker, glitch, or brownout during an automatic firmware update during the middle of the night? All you know is you woke up or came home from work and your thermostat won't turn on. Congratulations, you know have a "bricked" thermostat that is useless. Hopefully it wasn't in the dead of winter and all of your pipes froze and exploded. You can bet your bottom dollar that Honeywell won't pay for any of the damage, or even give you a new thermostat. It's in the user agreement that you must accept to use this thermostat.SECURITY. Would you like to know if you have the latest firmware? Too bad. It is important to know if you have the latest firmware from a security standpoint as vulnerabilities are reported all the time and it is up to the manufacturers to publish security updates to their firmware. Want a changelog from Honeywell to see what they are fixing and what they aren't? Too bad.FEATURES. It doesn't have any options for automatic or scheduled "circulation mode". You have to do that manually (why? It's friggin digital!). You can't calibrate the thermostat past ±4°F. You cannot turn off automatic updates and you don't get notified of any updates. The outside temperature and humidity information on the display is derived over the internet and often gives error messages. According to Honeywell Technical Support, there is nothing wrong with the thermostat and all the blame rests with accuweather.com. The thermostat also has this awesome feature where it drops the wifi connection randomly, even though it is only 25 feet away from a Netgear R7000 router. The thermostat also don't mount securely to the wall. If touch the thermostat too hard, it separates from it's mounting plate on one corner and you must click it back into place.SCREEN. Way too small. Deceptively small. Even the $15 trac-phones you get nowadays have bigger displays. The display also has a weird display refresh rate. I can see very high frequency flashing or jittering on the screen. I guess it could be the backlight for the display as well. They could be using PWM to control power to the backlight LEDs, hence the perceived "vibration" of the screen. I would only expect this in cheap Chinese gear.BOTTOM LINE. I'm switching back to Honeywell's 7-Day programmable thermostat without Wifi, the Honeywell RTH7500D Conventional 7-Day Programmable Thermostat. It has saved me THOUSANDS of dollars since I have owned it (I used to live in Guam where some peoples electricity bills were $800-$1000 A MONTH! Mine was under $200. I like Honeywell in general but the 9000 series thermostat is just pure fail.And yes, I have contacted customer support so please, Honeywell customer support reps, please don't leave me a "copy and paste response" telling me to contact you knowing darn well you don't have a solution. If you do, I'm all ears.

This thermostat is horrible. I installed the thermostat last winter and it would take forever to get to the temperature (just the last one degree up to the set point), so the unit was running far more than the old one. And then when it finally got to the temp, it would jump about 3 degrees above the set point. As far as I could see there is not adjustment for that and the MFR told me that also. Also, I could never get the A/C to work correctly as the unit always erred out. Of course, all these things happened after the date at which I could return it. So now I have a $200 thermostat that sits in a box ready to be thrown out.

DO NOT BUY THIS ITEM.This item is listed as having a 5 Year Warranty. I purchased 2 of these Honeywell Thermostats from Amazon.com December 2014.They were installed and worked until June 2015. One Thermostat shorted out causing the fuse on the air handler to blow.I contacted the Honeywell Support line and was repeatedly told that the item is a 'Contractor' model, it should not have been sold directly to a residential customer, should have been 'professionally installed, and that they refuse to honor the warranty.THERE IS NO INDICATION THAT THERE IS NO COVERAGE FOR A RESIDENTIAL CUSTOMER IN THE WRITTEN WARRANTY WHICH COMES WITH THE PRODUCT OR IN THE PRODUCT LISTING ON AMAZON.COM.I contacted AMAZON.COM who agreed to do a product replacement, but, did not agree to work the issue with Honeywell, or alter the product listing.The replacement thermostat just arrived. Unfortunately, the replacement is an open box return which has visible scuffs, glue on the back as if previously incorrectly installed, and most importantly, missing the MAC address card needed for connecting to the internet.I Called AMAZON.COM for a 2nd replacement and was told they cannot issue a 2nd replacement that I would need to get a refund and re-purchase the item.

Well, to make this review short, Honeywell should stick with what they know and not venture in areas where they lack basic expertise and I am talking here about SW development. This product has so much potential but it is very poorly designed and supported. Its indoor temperature indicator is grossly malfunctioning: so many times, although the house was getting hotter, it was simply indicating same initially temperature, forcing me to manually stop it. Other times it is jumping few degrees higher or lower without any reason. If a thermostat cannot provide its basic functionality right, who is even interested in its additional features. Which by the way could have been much much better implemented.Have been tested this version as well the 9580, consumer version, both have the very same basic issue, look for this on forums or other Amazon reviews. Big disappointment. Will get Ecobee Smart Si a try

This Thermostat produces a very annoying low pitch noise any time the back display lights up. First I thought my unit was defective, so I ordered another one. Same thing. Brand new out of the box issues. So if you are sensitive to hearing I wouldn't recommend it.

I connected this thermostat exactly as the instructions said.I set the temperature to 71°F and set the set point to 80°F. I flipped it to HEAT and the fan came on right away but no heat came on.I reset the set point to 45°F and flipped it to HEAT again and the fan came on right away and didn't go off.I reconnected the old thermostat and it worked just the way it is supposed to.

didn't work after two months.......

Doesn't even look remotely as bright as you make it look here?........first one failed haven't even tried the replacement. The first one cost me $202 just to have my old one put back in.because of a defect in the first one!

So poorly made that one of the screws you need to loosen to insert the wires is too tight to loosen (even with two people and vice grips!). Even their own instructions tell you not to tighten it too much. Pathetic.

This thing is garbage. Easy enough to install and set up but will not hold temperature. I set unit to 69 and it will drop all the way to 65 and run secondary heater. Switches won't relay to turn fan on. I tried calling customer service/tech support at 4pm and left my phone plugged in was on hold for 2 hours until they eventually disconnected me at their closing time 6pm. This thing is junk.