So I have five hardwired detectors in my house that are 17 years old. They can be a real pain, especially during winter when the furnace runs. It seems like just hot air blowing on them will make them chirp, and it's worse when the batteries are not new. I feel like I'm constantly replacing 9volts back-up batteries even though the detectors are powered.

Have these things gotten better over the years? Will new replacements eliminate the problem?

10 years.

I was having issues w/ my smoke detectors as well after around 20 years so replaced all of them a few years ago and it was plug and play, super simple. No issues since

I replaced mine with the exact same brand. It was a quick snap out, snap in for each unit.

UnderoosAg said:

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They can still chirp after you remove the battery.

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if they're in the trash outside, who cares?

62strat said:

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UnderoosAg said:

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They can still chirp after you remove the battery.

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if they're in the trash outside, who cares?

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It's the first few minutes until they get tossed, especially if you are replacing to get rid of beeping. Swap out the first one, start moving the ladder for #2 and the old one beeps. If you don't realize it's the old one beeping, you'll chase ghosts.