Can anyone recommend a thermostat system that is self-hosted (no third-party cloud) and integrates into homeassistant nicely? Something tasmota based would be even better.
This is the final bit of home automation that’s been difficult to solve. I’ve got a heat pump system and there are very few smart thermostat systems that aren’t beholden to a public cloud service.
It’s more of DIY solution, but works fine, did you check with https://esphome.io/ if your heat pump system couldnt be connected ?
Most of them have a way to communicate as they already have an offline thermostat
Unfortunately my current thermostats are very simple / just basic Honeywell heat pump controllers