> LFP batteries are as likely to burn down your house as a stack of wood is.

LFP batteries are much safer than past chemistries, but this statement is way too broad.

High power batteries are always more dangerous than something like a stack of wood, because batteries will gladly dump their entire energy capacity very rapidly into a short.

Even if the battery itself [mostly] won't self-immolate, the entire installation can be a fire hazard.

Treat them with proper respect.