I have everything on UPS’s, my Synology NAS contacts me if there’s an issue, etc. My fear of fire stemmed from being out of town when a co-worker texted to tell me my apartment building was on fire. Luckily, my unit was fine, but not so the people in back. The fire was started by idiots smoking on the rooftop deck. After that I installed cameras so I could see what was going on. But I don’t worry about my equipment per se. As others have suggested, there’s all sorts of things that can start a fire, large appliances, hot water heater, wiring in the walls, flames from the house next door, burglars, arsonists, plane crashes, ghosts, zombies, etc. You will never be safe! Bwhahahahahaha! Happy Halloween!