this post was submitted on 31 Oct 2025
        
      
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Dumb thermostats last for multiple decades.
As do smart thermostats that don't rely on the continued goodwill of any corporation to function.
Which ones are those?
My Honeywell one is not Internet connected, but it seems plenty smart. It knows the time and day, is programmable for four different periods each day, can handle all sorts of heating and cooling equipment. It also learns how long it takes to get your house to the right temp, then starts working before then to make it happen when the time arrives.
https://a.co/d/0oAyZ7q
I saw the photo with a person for scale and I thought…why?
One of the apartments I lived in had a Honeywell wifi connected one that worked pretty well.
https://a.co/d/fMJGrh2
Anything that supports HomeKit should work indefinitely. I have an ecobee4 that works great with Home Assistant via HomeKit.
Same with Matter. Home Assistant has a Matter module too. And, Matter is designed to be open!
Z-wave thermostats don't require Internet connectivity to function or control remotely. They do require something like Home Assistant for that remote control.
Yup, this is what I just did. Replaced my two first generation Nests with Z-Wave Honeywells.
A simple open api could extend the life of these things by decades.
I think legally this suggestion makes you a pirate, a thief, a terrorist and a mass murderer.
I’m already on a bunch of lists. What’s a few more. I should collect them like steam cards.
I've got one of those with bi-metallic strips, it's 35 years old, works no problem.
Uhh, isn't this just turning them into dumb thermostats? It says you can't control it via phone. Not that it stops working altogether.
Surprisingly, these still work as dumb thermostats after the cutoff date.