I have a LOT of reservations about today’s “ordinary” American (ie - technical numbskulls and TV-educated dimwits) homeowners mixing up the insides of their homes, garages and basements with high-amp DC sources, lead-acid batteries, DC “welding” leads (at 100+ amps) and H2 emitting sources....
Accidents will happen - and those not back & life scarring will be deadly.