Searching: HA-Controlled HVAC Controller which can use Zigbee Temperature Sensors/HA averages as current temp

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I am on the hunt for the perfect HVAC controller - and so far it seems like one may not exist in the consumer market (or I don’t google as well as I used to). I’d appreciate thoughts from anyone out there with advanced HVAC automation, please share your experience on this journey and where you stand today.

Goal List:

  • Zigbee/ZWave/Other local protocol required
  • Preferably no cloud option at all, but acceptable if optional
  • Should still support basic thermostat functions, setting/holding temp, changing mode, maybe schedules etc, from the device itself (so that it can still be operated locally in the event of HA outage)
  • Should be able to use any external Zigbee temperature sensor to control the “current temperature”, which would also be displayed as the current temperature on the local device

Ultimately my perfect device is one where I can capitalize on the Zigbee temperature sensors that I already have in every room in the house, combining and averaging their temps to dictate back to the HVAC Controller what the “true” upstairs average temperature is. This would eventually be combined also with either motorized dampers or smart vents/registers to reduce airflow to rooms which are too far outside of an acceptable +/- threshold.

With most of the devices on the market today, it seems I am either limited to using their proprietary sensors (Nest, Honeywell, Ecobee) or there are a few cheaper models out there that seem to support zigbee or zwave (seems mostly zwave, unfortunately), but none seem to support controlling/averaging temperature to then be displayed on the device.

Am I doomed to a future where my HA automations just need to set my AC/Heat setpoints at very high numbers until the HA averages reach my “true” temp, and then have HA turn off the unit? Surely there has to be a better way?

Thanks in advance

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Hi,
there is ‘out of box’ solution:

Also, there are plenty of custom solutions, i.e.:

Best regards,

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Sorry, maybe I am missing something - but I don’t see how this addresses my post. Generic thermostats are cool, but I’m referring to controlling actual HVAC hot/cool zones within my house, not using separate devices/switches that act as stand-alone heaters or coolers.

I want a single thermostat, on the wall, that can work independent of HA, but that can also let HA take the lead and leverage third party sensors/virtual sensors within HA to gauge the current temperature of the space to determine whether or not the HVAC should be running.

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Sorry. I misunderstood your needs.

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I’ve seen this question asked many times, an out of the box method to get the same result would to build an automation that calls the set temperature service and adjust the set point accordingly.
Usually the reason this question is asked is due to an area of the home becoming cooler or warmer than the specified set point. It this is your situation you can achieve more granular control of the system by splitting the difference of the two readings and call the service to change you set point the difference. All types of conditions can be added to the logic it is versatile enough you shold be able to get the best result for your situation.