Honeywell TH6320ZW2003 T6 Pro Series Z-Wave Stat Thermostat & Comfort Control, Smart Home (Renewed)

Excellent replacement for older cloud/Wifi Honeywell thermostat
I replaced a Honeywell Wi-Fi thermostat with this because of the periodic unreliability of their cloud network – they do not offer local control of their Wi-Fi thermostats beyond the physical controls so everything else goes through their cloud and it seems to throw errors and be partially or completely down at regular intervals – every week or two. (no, it is not me) Sometimes for a few minutes, sometimes longer. After the last glitch I decided I wanted local control with a different non-Wi-Fi product.This paired easily (as a secure device, so write down the PIN before you pair) with my Zooz 700 based Z-Wave network and Home Assistant saw it immediately and created appropriate entities. You can either use the internal scheduling feature or turn that off and manage it in your home automation, which is what I did. I have it connected to a C wire (any 24V DC source will work) and it takes 3 AAs as a backup. If your furnace doesn’t have a live C Wire you can just create one at the furnace end by breaking out the black wire and using a 24 VDC wall wart power supply.I would give it 5 stars except that I had wanted to manage it with a separate temperature sensor and there is certainly nothing built in to be able to do that – I’d prefer to override both temperature and humidity sensors externally and expected that would be an included capability – if you are geeky enough to have a Z-Wave network, you probably want your sensors somewhere else, or be able to average a few of them. This doesn’t appear to be able to handle that.I bought this as refurbished and certainly it looked new to me and worked perfectly. A good savings.

Know what you’re getting – There’s a reason it’s discontinued
This is a Z-Wave thermostat. Z-Wave has a lot going for it, but KNOW WHAT YOU’RE GETTING INTO. It does NOT have WiFi. The wireless connection is Z-Wave. Z-Wave is a long range system that is part of a Smart Home mgmt system. Z-Wave devices can ONLY be connected to ONE mgmt system. If you connect to Z-Wave, THAT is how you have to control it – through the app you use in your home. So, if you’re using Home Assistant, that’s how you’ll need to control thermostat. Not a Honeywell app. If it’s Alexa, than it’s ONLY Alexa. Same with Hubitat or the Apple Home. One system. Many of them are pretty cumbersome, especially if you JUST want to check temperature. It’s a lot of money for what ends up being a fancy looking thermostat you can’t control remotely. AND it assumes a pretty high level of geekness. I’m VERY geeky, but sent it back. The combination of using one app, linked into another app and other issues just made it too clunky for anybody else in the house to use.

Great with home assistant
My apartment uses Honeywell thermostats and I wanted a drop in replacement for a smart thermostat.This works perfectly for that and gives me network connectivity. I was also able to replicate the settings from the previous to this one so I know it should be running the same commands.Just watch out on locking yourself out, if you forget the code you have to do some combination with numbers off the back