It'd be fun to play with something like this for the learning, but I wouldn't actually run one unless it was in its own shed, many dozens of yards from the nearest anything else. Lithium fires are no joke.
But also, on the video, they shows each pack of cells he uses has individual over and underchange and temperature sensors, so the system is able to tell if any individual section is going bad. It's a pretty neat, and external installation, so I don't think it is very harmful on a "massive heat incident".
Notice how many qualifiers are used in that statement.
Also, could there be a thermoelectric powered fan to slow down the heat rise when cell(s) starts to fail or burn ?
Thanks nonetheless for the return