This isn't a widely available system. There are a few web reviews and YouTube videos that helped me cobble together a rough spec. These are only estimates from those sources.
Mashtun/kettle size: 27 liter
Preboil volume: 24 to 25 liter
Boiloff is about 3.5 liters/hour
Loss to trub: 1.5 liter
Batch size is 20 liter
I couldn't tell what the brewhouse efficiency is, but starting at 70% seems reasonable. The mash style is closest to BIAB.
Please carefully check your measurements against my estimates. Feel free to post more accurate specs as you learn your system.