I’m a bit out of my depth here and the plumber doesn’t know either. I have a combi boiler with OpenTherm support. What thermostat/controller should I get if I am a typical Mastodon user, i.e. don’t want to use some proprietary app, someone else’s cloud, or pay a subscription for my own hardware?
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@Gargron get a normal thermostat. What does OpemTherm have to do with anything? Do you already have an automation system? I assume not?
@jason I don’t know what it has to do with anything, but I figure it might be relevant for fine-grained control and sensor readings from the boiler, since the more general control is basically just an on/off switch from what I understand.
@Gargron It seems to be out of stock currently, but the DIYless OpenTherm V3 is BY FAR the best nerd-friendly option. I have one and it's fantastic.
It talks OpenTherm to the boiler and connects via WiFi, pushing all sensor data to your local MQTT broker, from where Home Assistant can interact with it. It supports external temperature sensors, via Bluetooth or MQTT. No cloud dependency at all, fully local and made in Europe.
“What you’re asking for doesn’t exist, you should get a dumb thermostat” is also a valid answer to my question, just to be clear. I don’t know what I don’t know.
@Gargron is this thermostat dumb enough, I mean... a thermostat has to do one thing 😉
Can I show you this ... Hugz
I will take no responsibility for any obsession it causes
Oh, it not the thing you really want but you want to control it and play around
Hugz & xXx
@DenOfEarth Having it running all the time would not be economical, so it needs to at least have a programmable schedule.
@Gargron
I personally have an Ecobee, but I deliberately did not connect it to the internet. It still supports weekly or daily programming and separate programs for heat or cool.
@Gargron
The first gen Drayton Wiser stuff is capable of running over the LAN with their app, and has also been widely reverse engineered - I poke mine with an assortment of manky python scripts. They're onto 2nd gen now I believe which I know nothing about, but might be worth researching?
@Gargron Here's a great thread on that:
@Gargron imo, browse Zigbee2MQTT's support list and pick the one with the highest amount of community support. don't bother with anything that has an app, just work on bare metal zigbee. easy to route, and easy to connect into homeassistant.
@Gargron I do not have a recommendation for a controller for this particular unit, but if you decided to go down the Home Assistant route (to interact with the controller), then I'm more than happy to show my set up etc. should that help.