Honeywell CH/DHW via RF - evohome, sundial, hometronics, chronotherm

[EgbertB (Egbert)]

@JoepW

known ~and unknown~ list in HA for EvoHome. I’m stuck

Tell us what you already tried, copying the formatting from the Wiki example.
As it says, start with your HGI (bridge), which I don’t see listed in your screen shot.