Local Polling Thermostats

Hi All - I’m looking for thermostats that cleanly support local polling without too much middleware or complexity - and no cloud or vendor user account dependencies.

Doubtful anyone would recognize the Proliphix thermostat I’ve been using for years, but it is dying.

I’m aware of Venstar (which appears to be on perpetual backorder).

Other suggestions?

My automation approach is to have a dedicated controller for critical house functions such as the thermostat and lighting control (very happy with Lutron) so not really looking to use the HA thermostat functions - plus not as family friendly as I would need.

Thanks for any feedback, pointers, and discussion!

Steve

Your other option is to find a thermostat that supports Apple’s Homekit protocol.

Home Assistant’s Homekit Controller integration supports the Homekit protocol, allowing you to receive status from the thermostat and control it, all via Wi-Fi. The Homekit Controller integration supports ‘local push’ which means it instantly receives status reported by the thermostat (more responsive than polling).

I know Ecobee’s thermostats support Homekit as well as the Honeywell’s T9 (there are undoubtedly others).

Be advised that the thermostat’s manufacturer may not expose all of the thermostat’s features via Homekit; some of the device’s more unique features may not be included (either because they chose not to or the feature doesn’t exist within Apple’s Homekit thermostat model).


FWIW, I know of the Proliphix thermostat. I’m using an old school HAI Omnistat/2. It communicates via RS-232 to my co-existing home automation software (Premise), via a custom driver I wrote over a decade ago, which talks to Home Assistant via MQTT. All local-polling and still works.

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Thanks for the suggestion - yeah, I was pretty cool when I got that thermostat a long, long time ago. And who doesn’t love RS-232 :- )