25
Thermostat questions
(partizle.com)
Home Assistant is open source home automation that puts local control and privacy first. Powered by a worldwide community of tinkerers and DIY enthusiasts. Perfect to run on a Raspberry Pi or a local server. Available for free at home-assistant.io
I have been very happy with my venstar colortouch. It has a well documented local API, with a cloud option and mobile app if you're comfortable with that. The HA integration is great as well.