In reply to MG:
> They don't really say, typically.
Yeah, I guess not.
That said, if you can bring yourself to look at the Gnifetti hut website - just on the off chance, you understand- you will see that it says:
"Winter opening: Please note: in winter, when the hut is closed, the winter room is available (unmanaged). The reservation is not required."
Serendipity! Who'd have thought it!