Hello,
im new in HA, i have a old Barn with a Water heating System, I have a Wood Stove to Heat the Water, and a Wood Gas Oven, Also a 1000L Storage Tank.
Also i have a 5 Station Water distributer with Pumps and Mixers,
The Andino works with Reisenbauer Solutions Software and works Fine but i can only press buttons on the app or web interface, the Programmer have no time for me and now i serch for alternetive software or hardware to controll my heating system with heating curves idealy with digital inputs, the current system has only analog temp inputs and digital outputs.
my question is, knows anyone a system was is open source easy and idealy works on andino and HA ! 
Actual i have modbus modules on the andino.
idealy a reisenbauer integration for HA but my hope is not so high for this.
Sucsessfuly Integrated Systems:
-Homematic Thermostats
-SMA solar Inverter
-Panasonic Split Klima Heatpump
Integration To Do:
-Victron
-Heating Controler