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, but no. You really should replace your detectors every decade. They will likely work perfectly for twice that, but is it worth the risk over like $100 in smoke detectors?
So it does sort of force you to replace it after a decade, but you should anyhow.
It’s also well worth it, because getting on a chair or ladder and buying new overpriced 9v batteries every year (if you’re all proper about changing them) is a pain in the ass compared to once a decade. The more of a pain it is to get to your detectors, the more a 10 year one becomes worth it.
You’re supposed to hit your test button once a month to check their functions, but I dont think anyone anywhere actually does that. If they tell me they do I’ll just assume they’re a liar.