Just wondered if anyone on here is using a HA compatible one.
Zigbee or Z-Wave would be fine.
Unfortunately, the controllers I got with the main control unit are Heatmiser.
They use Zigbee, but the manufacturer’s own implementation which requires buying and running a proprietary hub (and sod that!)
Rather annoyingly, the controllers are pretty functional!
The manifold wiring centre itself (UH4) just works by connecting 240v lines, so shouldn’t be too hard to have HA connecting the right loops at the right time.
I’ve considered just doing this with shelly relays and setting up a thermostat in HA, so if anyone has homebrewed an interesting solution, I’d also be interested to hear!
Im doing this with esphome, i replaced the thermostats with dht22 sensors and wired the valves via solid state relays (one for each zone) to the esp. Im using an esp with ethernet (wt32-eth01 clone), but wifi can work, if you can place it outside of the metal box of the heating system.
For control you can use a pid controller. I think there are some, which can run directly on the esp if everything is connected to the same esp.
Note: Dont use dht22 in the bathroom, it will slowly get less accurate when exposed to high humidity. Running the onewire of the sensors straight through existing 5 conductor thermostat wire/1.5mm^2 wire works reliably