Working on KWB Easyfire Sensor

Mostly interesting for the german speaking area, I’m working on support for KWB Easyfire pellet central heating units.

That’s that thing: . Also see .

It has a RS485 port over which it sends status info like temperatures and relais state.

Seeing as it’s a bit of a hardware hacking thing and quite regional, is that something that it makes sense to add to homeassistant or is my custom_components folder the appropriate place?

Pushed as PR 5760