Do my smoke detectors ever need to be replaced?

Smoke detectors have a normal life expectancy of 10 to 15 years. If you are getting false alarms from your detector, it may need to be replaced. When having problems with your detector, always remember to check the battery. Read through the Smoke Alarm safety Tips (PDF) for more information on how to maintain smoke detectors.

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1. How often should I check my smoke detectors?
2. How often should I change the batteries in my smoke detector?
3. Do I need to clean my smoke detector?
4. Do my smoke detectors ever need to be replaced?
5. Should I clean the chimney in my wood-burning fireplace or wood stove to help prevent chimney fires?
6. When I clean the ash from my fireplace, is it necessary to put them in a metal container?
7. When doing home refinishing projects, how should I dispose of rags used for staining?
8. When am I required to have a CO detector?