The beginning of Daylight Savings Time is a great time to change the batteries in all of your smoke detectors and give them a quick check-up. These units have a limited life span, so they may need to be replaced if they are more than 6 or 7 years old.
If you’re doing that, think carefully about where they are installed. Remember that fire, heat, and smoke rise, so smoke detectors should always be installed on or near ceilings in as many rooms as possible. Install them at the top of all stairways and in the center of rooms and hallways
Remember, never place a detector in a corner, near a vent, or a window opening. And finally don’t forget to include smoke detectors in your basement, attic, and garage.