Works exactly how I needed it to work. Bought a new to me home, and I wanted to be able to adjust the thermostat without walking down and back up the stairs... Now I can adjust from the comfort of my bed. Love that it monitors the outside temps and gives me that info. A big improvement on setting up the programming from the older style thermostat I had.
Easy to set up and program. Remote sensors are easy to add and configure. Everything is intuitive and the app works great. The thermostat has the ability to average sensor readings. Ended up buying one extra sensor so that I had the same number of sensors on each floor for when we are living on both floors. I use the adaptive recovery setting, but find I still need to adjust my programs by about 30 min. Still much better than any other programmable thermostat I’ve used in the past.
Easy to install, we had few questions and the call service was very helpful , knowledgeable and professional! Very pleased with Honeywell T-9. Is fantastic to finally control and get the desired temperature in the desired rooms in our 25 yr old home!
Was hoping this was going to be plug and play replacing my old non-programmable thermostat, but I ended up having to call tech support. I’m happy to say that the tech support was the best I’ve ever experienced. I needed to use one of the spare wires on the cable from my furnace to the thermostat, and that was a bit overwhelming at first, but the tech did a “FaceTime” session with me, had me show him the furnace, and the cable where the thermostat was being installed, and he had me up and running in less than an hour. The new programmable thermostat works great, the app is very helpful, and having the additional sensor in the master bedroom works great !
Lots of things to like about my new T9 thermostat, with the multiple sensors being foremost. The T9 is mounted near the return (as it should be), one sensor is in the master bedroom, the second in the kitchen. Because the temperature sensors also sense motion I dreamed of a warm winter kitchen only when we were using it, followed by an automatically warmed bedroom when we retired. No wasting heat on uninhabited rooms! The reality is a little different. Furnaces typically do not have the ability to shoot hot air at individual rooms, so the best the T9 can do is prioritize the sensor of interest, even if it means making the rest of the home warmer or cooler than the set point. Nevertheless, it is an improvement in my case and I like it. The second feature I like the most is the fan setting "Circulate". This runs the fan periodically even when the the furnace is not heating just to circulate the air. I like to think it's worth the electricity to even out the home's climate a little. Finally, I was really impressed with how easilly I got it to connect to my home wifi (5G even!). Next was easy installation into Homekit (Apple's home automation on my iPhone) so I could check and change the thermostat without spending 15 precious seconds walking to the unit. A minor convenience feature that geeks like me love. So why did I mark this solid performer down to 4 stars? It's because you can not use Homekit without installing the Resideo app! I don't want another app! My irrigation, stove, car, door camera, door lock all have apps, and in the future I fear my toe clippers will come with one! APPLIANCES SHOULD BE SET AND FORGET, not pick a USER NAME and PASSWORD, SIGN a waiver, UPDATE every 30 days, disclose your verified EMAIL address so they can send you surveys and marketing junk, and by the way support is ENDING as soon as we sell the company! And the reason you have to install the app is trivial, it is because when you connect wirelessly you CAN NOT SET THE TIME ZONE. That's right, your T9 assumes it is on London time and all your energy-saving schedules are off by 8 hours (or whatever)! Ironically the time setting screen has a daylight-savings time switch, but as Resideo support confirmed, no ability to set the time zone to adjust the time coming over the internet. Only the Resideo app gets the time right. So it's all (Homekit and Resideo app) or nothing (manual entry, no connectivity). Come on, Resideo, how can you overlook that? And Resideo, if you are listening, I have more suggestions. Put the sensor temperatures on the home screen, too. I want to see at a glance how my entire home is doing. Allow dimming the backlight at night, that thing is bright! And make the mounting bracket larger. The three mounting screws are intelligently arranged for easy leveling, but they are so close to the wire entry cutout that the fragile sheetrock in-between crumbles. As much as my frustrations pained me, full disclosure, I drank the Kool-Aid and bought another T9 for our 2nd furnace.