Honeywell TH6220WF2006/U Lyric T6 Pro Wi-Fi Programmable Thermostat with Stages Up to 2 Heat/1 Cool Heat Pump or 2 Heat/2 Cool Conventional

Works Perfectly with Honeywell C-wire adapter. Auto changeover, filter change reminder, compressor protection and the backlit display are great features. Easy to install and program. Resideo technical support is super.

Excellent product, fast shipping.

First off the listing I now see for this Honeywell T6 Pro I purchased as I write this review now looks like some cheap old fashioned basic thermostat. And there is no multicolored handheld remote that is shown in the second picture in the listing???? This is (was) a high-end wireless smart thermostat at a great price. Perhaps Amazon made a mistake and will correct the listing by the time you read this review. whatever - I don't know.Anyway I replaced my Honeywell Lyric Round with a Schneider Wiser smart thermostat when my Round died 2 years and 1 month after I bought it (one month out of warranty). The Lyric Round had another major flaw (other than dying) that soured me (see below) so I decided to try the Schneider Wiser instead of another Honeywell product. However when I came home on three different occasions to find my home at around 47, 52 and 55 and the Schneider indicating it was 67 in the house (therefor NOT turning the furnace on) that was enough. Had I been away longer my pipes and possibly my cat would have froze.The Schneider doesn't offer the geofence feature which was a real plus for me with the Honeywell. You can download an app for your android to monitor the temp and provide some type of geofence with the Schneider but it is a generic app that Schneider doesn't really support. Either way I wouldn't risk my cat or pipes freezing again. So I returned the Schneider Wiser. I really liked the Honeywell Home app with built in geofence so I ended up buying a Honeywell Lyric T6 wireless that works with the Honeywell Home app.The Honeywell Lyric T6 also doesn't have the flaw that the Lyric Round had when using a lithium battery without a C wire because you don't have the option to use a battery in the first place. I replaced the first battery after about a year with no problems being it wasn't dead or even indicating weak.You see the problem is that Honeywell in its ultimate wisdom feels a dying battery only rated a 'notice' on your phone. A notice that gets buried under hundreds of other notices. However Honeywell thinks the humidity dropping below 31 rates an ALERT that you can't miss on your phone and in the app. When I found the weak battery notices buried under all the other notices (user has gone outside the geofence. user is home, etc.) after the heat went off (while I was home thankfully) I couldn't believe Honeywell designed such garbage. That to me is a major flaw. That to me is just plain STUPID.Using a C wire eliminates the battery and the major flaw the Lyric Round had if you used the lithium battery option (just a bad choice that shouldn't even be offered in the first place). With the Lyric T6 you have to use a C wire (no battery option). Both the Lyric T6 and Schneider Wiser came with a C wire adapter. So I decided to give Honeywell another chance.With the Lyric T6 we can fly to Vegas for a week in the winter after filling the auto-cat feeder, liter box and setting up my web cams to check up on the cat AND monitor the temp with the Honeywell Home app. I wouldn't try that with the Schneider after the first time it screwed up.The Lyric T6 hasn't tried to freeze my cat . . . yet.

Fyi only - I take no responsibility for any work anyone does. I finally got the thermostat working after much effort. I really wanted it to work so I could control both thermostats in my house with one app. My previous thermostat was battery operated and didn’t require 24 vac to operate. This one does. I almost returned it. The thermostat wiring had a blue wire C wire but it wasn’t connected at the hvac unit. I had to pour through web posts and hvac manuals to find the wiring panel, which didn’t match the diagram in the manual. Fortunately in my case I read that the C wire had to be connected to one of two 24 Vac output terminals of a transformer- the terminal that is grounded to the metal frame of the unit.I wish the scheduler could set the mode so that ac is on for hot days and heat is on whenj cold At night but most or all ac apps don’t permit that. Follow up: my Google Home app for my nest router permits switching heat cool mode on schedule. Apple Home will too but requires hardware Homekit. I appreciate the Matter smart appliance support- lots of options to choose for future smart home set ups

I recently purchased a house and what they used was not good, So I bought this to replace it and it worked great.

I bought 4 for my 4 zones. I unboxed and installed 1 and it was easy to mount the plate on the wall and wire it, and then the thermostat snapped on and looked good. I got the Honeywell Home app installed on the phone and walked through the configuration (FYI, the phone connects tot he thermostat during configuration via WiFi directly to it.), this and the need for a C-wire if you don't have one is where the professional installation would be needed because the questions are very in depth. Fortunately I installed my own furnace (as well as built the house) so I knew the answers. Then at the end the final step is to configure the WiFi and register it in your account. It had no trouble actually getting the thermostat onto the network, but when the phone switches back to the LAN WiFi it looks for the thermostat to complete the configuration. It timed out and said it was unable to find it and asks to verify i was on 2.4G network. Well, I use the Eero (owned by Amazon) brand mesh network that has both 2.4 and 5G on the same SSID and you have to call tech support to have them turn off the 5G remotely (max 15 minutes). I tried that twice and it would still fail, and each time i had to start all over. Then I found that if I said i was a contractor I could configure everything but the WiFi and the thermostat worked fine, just no remote control, etc. Gave the WiFi only config as home owner a try several more times. Unplugged my Eero network, reinstalled my old NetGear 2.4G only router, which my phone and laptop could use. Ran through the thermostat config several more times trying to use that network, and again always failed with just the 3 devices on the network beside a couple that auto jumped on because I used that same SSID and password hoping that it would just switch over to the Eero netwrok once I got it configured. I literally tried this at least 15 times, many times in various network configurations, finally going so far as to factory reset everything and use the most basic network setup. I am a computer engineer with a minor in networking and couldn't get it to work. What kills me is that when using the Eeros, I could use the Eero App to see the thermostat had joined the network and see it periodically hit the Internet ... which Honeywell tech said was trying to check into the cloud for its registration which is what never got there ... I asked if he could manually add it to my account: "No because of security reasons " ???I'm not sure how adding information to an account is a security issue, vs seeing devices in an account and being able to hit them. Anyway, I spent 2 longs days screwing with this and gave up and carefully removed the one from the wall and repacked it and returned all 4 to Amazon this afternoon. I just got my Eero network back up, and I'm not one to generally review stuff but because I don't think I've ever been so frustrated with something that should be easy, I couldn't wait to bash this crap setup process. I give it 1 star across the board.

We replaced our original Honeywell T6 non-wifi tstat with the WiFi version. I had it installed within 30 minutes. Didn’t even touch the wiring harness; the new unit plugged in. Download the Resideo app to control the tstat remotely or use Alexa. Great purchase!

Perfect. And came as expected