> there’s a fridge, a boiler, the A/Cs, burners with gas, etc… everything could get on fire. Most of these appliances don't actually have flammable materials r

> there’s a fridge, a boiler, the A/Cs, burners with gas, etc… everything could get on fire. Most of these appliances don't actually have flammable materials right next to the active components that can catch fire. A circuit board can catch fire but it'll likely self-extinguish because it's in a metal enclosure away from anything flammable.