Yesterday while cooking I set off the smoke detector, no I did not burn anything. They go off when I cook over a high heat. And yesterday once they started going off they would not stop. I ended up having to disconnect them all (they are hard wired with an interconnect) and I replaced them this morning. Aaaaaaaand let me tell you, I had a sleepless night last night knowing there were no detectors installed.
https://www.southernliving.com/how-often-should-you-replace-smoke-detectors-8774122
Yes.
Not only that, the current generation of smoke detectors have sealed batteries so you can’t even open them up to change batteries or anything. So once they expire in 10 years they start their incessant “I’m dying” non-stop beeping - that’s when you dispose of the entire smoke detector and buy a new one.
I’ve read that they don’t detect smoke as well after 10 years anyway (e.g. even more false alarms) so it’s probably for the best to get rid of old ones.