I’m currently in the process of getting this setup I am planning to replace the main controller for the boiler with a WiFi relay and create my own touch screen control panel for around the house. Plus the use of the openhab app.
I don’t even know what this is LOL. My guess, from what you are saying is you’re going to piece something together? I’m not that savvy. Looking more for a zwave thermostat that works and is easily added to the system.
I second Markus’ suggestion in case you would like to control radiators. I have the Eurotronic Spirit thermostats myself and I am very satisfied with them.
However, I suspect you are looking for a control device for your boiler?
right, now I made the same mistake US guys make all the time: they assume their counterpart has the same notion as they do.
But in (almost) the rest of world a “thermostat” include a valve and a handle (the British call that a ‘TRV’)
I use for the wall heating Eutronic Spirit and for the underfloor heating MCO Home (MCOEMH7H-EH2). In the MCO documentation also boilers are mentioned.
Both works with openhab (tested with 2.5.9, 3.1.0).
It’s “just” a way to see the current demand temperature, and can show the current room temperature too. It won’t (by itself) control anything, or be controlled by anything other than your fingers if you walk up to it. For that, you need some sort of cleverness, in my case provided by the vendor’s own hub, but could be an OpenHab server too, I guess (I’ve never tried).
You can just replace your current thermostat with a sonoff basic and a DH11, A thermostat is just a switch, all you need to do is turn the switch on and off. The photo is what I’ve replaced my old 3 wire mechanical thermostat with. You can add a DHT11 temp sensor to the gpio on the sonoff basic, flash the sonoff with Tasmota, and connect it up to openhab. all for around £10
I’ve got 11 of these in my house and they have been working flawlessly for months. I would consider myself a novice too.
FYI if you are going to attempt this then make sure you turn the electricity supply off!! I didn’t and it wasn’t pleasant.