Only have had the Honeywell T9 for a month or so . So far it has helped even out the temp in our home very easy to install. It will let you know what is going on with your system like humidity to high in home great purchase
Great thermostat. Love that I can control it while not at home and have it turn on and off with the geofence feature! And maybe it’s all in our head, but the wife and I think it does a better job maintaining a comfortable temp in our home then our older thermostat.
This thermostat greatly improved the heating of our second floor. We were able to place sensors in to separate room and made them the priority for the T9. Prior to this there was only one thermostat in the hallway which was thrown off by the 1st floor heat.
Readout is large, but two issues experienced: (1) Doesn’t connect to all brands of routers/modems, picky. (2) If you connect an accessory, such as additional room temperature sensor, the screen on the T9 doesn’t display which temperature you’re looking at, unless you go deep into menus to find it. A more efficient interface would help. (3) I also found it would also too quickly cycle on and off my heating/cooling equipment, which I think would lead to premature wear on the compressor. Overall, I wouldn’t buy another one.