larmen
Head Pro
I checked with a work colleague who has the same system we have. They have it indoors in a cupboard. She says they have to air it regularly or it goes off in flames. she was probably dramatic. On the other hand, hers cycled well in the last week when ours 'froze' out..Would it be a fire hazard.. esp if you forget to remove it in the summer... i have never checked, but i assume the batteries would be warming up during cycles.
If you look at Robert Llewelyn on fully charged, he has his Tesla power walls in the garage. So have others. I think it's possible, but there are restrictions. People used to install them in lofts as well.