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by MostlyStable 404 days ago
What I want is a thermostat has basic controls on the device such that it can do the basics (heat, cool, circulate air, hold temperature at setpoint), but also passes on all the wire states over either wifi, zigbee, or one of the other home automation standards so that I can make arbitrarily complex control boards and routines through homeassistant.

This probably exists for the really basic 4 wire versions, but I have a more complicated 8-wire Lennox thermostat and I haven't been able to find something like this.
3 comments
floating-io 404 days ago
This right here is why I bought the slightly lower-end two-speed system instead of the variable-speed system (it's a Trane, I believe). I'm just not interested in getting tied into their proprietary ecosystem.

I have a relatively simple Honeywell Z-Wave thermostat, and it works great with Home Assistant.

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asielen 404 days ago
Ecobee may be able to support your system.

https://support.ecobee.com/s/articles/What-do-my-thermostat-...

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MostlyStable 404 days ago
Yeah, this thread got me to re-investigate this again (it's been several years), and Ecobee should support it (although I'd lose connection to the external temp sensor, but that's not a big deal, I have my own weather station already). I may finally pull the trigger because I hate the way that the "smart" thermostat that came with my system works.
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Ecco 404 days ago
Agreed. I really like the hardware (and price point) of Amazon’s smart thermostat. Unfortunately it’s all proprietary and locked to Alexa. I really hope someone unlocks them at some point.
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