Ive just has a Lion fire

[SparkyJJO]

So, you're using the rack style then? I guess you can't put a fuse on each cell (pack) on the large wall mounted batteries that are sealed. I was wondering about cement board. Basement is where you're going to install, would you vent this so if something happened the gasses won't fill up the home?

Nope not rack style. DIY metal box. But if I had my druthers, I may go with a DIY box "kit" like Luyuan as it might go a little faster.
As far as venting, I have no real plans for it. Not sure how I'd accomplish that. But I don't see any reason the cells would start venting as I'm preventing any sort of overcharging, undercharging, current dumps, etc. LFP doesn't just vent for the fun of it, something has to cause it right, and the main cause is overcharging.