BUDERUS LOGANO G234 gas boiler with R2107M controller and 2 BFU line temperature controllers

Dear TADO!

My question is, I have a BUDERUS LOGANO G234 gas boiler with R2107M controller and 2 BFU line temperature controllers. The system also includes 1 Buderus Logalux 300 litre hot water tank.

One BFU thermostat controls the radiator circuit, the other the underfloor heating. The radiator circuit has 2 floors with 4 radiators on the ground floor and 8 radiators on the first floor.

The underfloor heating is only on the ground floor.

My question is which of their devices can I use for the Buderus system I have described.

I look forward to your reply.

Best regards