control heater temperature without WCM-FB

[zenlight777]

Hi

I have a Weishaupt WTC25A heater but don't have a WCM-FB Thermostat or WCM-FS Remote Control unit.

1. Using this repo, is it possible to emulate the WCM-FB thermostat and somehow send the 35..hc1.csv commands to the Heater?
   Probably no, because the WCM-FB acts as a high-level controller and provides much more functions than the Heater. So it is the better way to control the heater.
   But at a low-level it would still send some write messages to the Heater.
   I'd like to avoid buying the WCM-FB.
   Is there any way to send those low-level messages instead? Or is there any forum where they're discussed so I could try to reverse-engineer them somehow?

2. I only have a basic thermostat(Honeywell).
   Tried to ebusctl grab / ebusctl listen / look at raw logs to see what message is sent to the Heater when I change the temperature on the Honeywell Thermo?
   I tried buy no messages appear. Only the Act message is polled every few seconds.
   Probably it's because the Thermostat binds to the H1 port of the Heater instead to eBUS as WCM-FB would do.
   So is there no other way to produce the temperature change messages and intercept them with ebusctl grab?

Thank you!