They replaced older Honeywell smart thermostats. These are much easier to use and set up. We've been using them for a couple of months now and have no complaints.
Installation was simple, and the app and interface are clean and easy to use. Setting a schedule with different priority rooms at different times and the fan recirculate setting were the two things I was most interested in (I have 8 sensors across 2 T9s) and I’ve been able to keep the house much more comfortable with a lower cost.
I was really excited about installing two of these thermostats with the extra room sensors for each level of my house. However, within two weeks of installing, we realized it was triggering our aux heat constantly. It would only be 40 degrees out and we would adjust the temperature by 1 degree and the aux heat would come on. I contacted support and they advised I adjust some settings which I did but it didn't fix the problem. I threw out the boxes since I was initially happy with them before realizing they were regularly triggering our aux heat and raising our electricity bill instead of lowering it like smart thermostats are advertised to do. I removed them and reinstalled our old "dumb" thermostats to avoid our aux heat coming on all the time and now I am stuck with two T9s that were a waste of money. Don't buy if you live anywhere where it gets to 40 degrees or lower on a regular basis in the winter...I live in Virginia so its not like I live in a very cold place.
No, I would not recommend this to a friend.
Response from resideo.comBy Joey, Customer care, February 26, 2024
Hi, thank you for taking the time to rate the T9 Smart thermostat, we appreciate the feedback and will utilize your comments.
The system works as it suppose to give you two zones for temperature control. Works great! Schedule is easy to set. The only thing is history is delay for two days to be posted..