There is available unofficial integration for older Prana 150/200 Bluetooth recuperators. It offers most of the device functions and sensors integration with HA, but this is depending of you exact model.
It can be installed thru HACS. Install it and follow configuration flow.
It is tested only with with the Premium Plus model so if you find that a feature is missing or something shouldn't be there for different model, open an issue and hopefully it can be fixed.