Hi, I am looking for recommendation to replace my current Thermostats. I currently have 1 baseboard heater in each room of my house controlled by 1 thermostat. All thermostats function independently.
- UC1: Central control in HA - I would like to be able to control all of the thermostats using home assistant: adjust the temperature centrally (when I leave the house), and also adjust the temperature per room if required: for example, only heat bedrooms at night
- UC2: Physical control - I would like to keep the “physical” aspect of it, meaning someone in a room can do manual adjustments using the wall thermostat. It doesn’t need to be a screen on the wall, it can be a scroll or buttons. The temperature change would replicate in HA. This is because I have old people in this house that will not be able to use HA
- UC3: No Internet dependency - I would like to be able to control the thermostats (physically and/or in HA) even if the Internet is down
About my current smart home setup:
- HA running in Docker on a dedicated host. Zigbee support with MQTT (zigbee2mqtt). I’m open to use other protocols (e.g. Z-Wave). Bluetooth supported but not ideal given size of the house.
- Unifi based network - I have a dedicated network and SSID for Wi-Fi connected devices (2.4Ghz and 5Ghz support) with no Internet access for security reasons
- Honeywell “physical” thermostats in the rooms (not connected, not programmable)
- I have basic ESP8266 to control aquarium temperature, I know how to flash them using ESPHome and reuse other people’s project but I’m not an embedded software specialist
- I live in Canada (but can wait days/weeks for shipping)
I found this project that looks like to support what I want to achieve from a software point of view, now I’m looking for the hardware: https://github.com/tpacri/multizone_generic_thermostat
I’ll do a proof of concept with 1 new thermostat, and if it works well, replace them all. Budget is not a limitation if the solution is solid and can last 10+ years.