Here are some things to keep in mind when you are installing your smoke alarm:
Follow the manufacturer's installation instructions.
On the ceilings, mount the device away from corners and walls, which have dead air space nearby.
About eight to 10 inches is the recommended distance.
On walls, install the alarms high, because smoke rises, and place them eight to 10 inches away from corners and ceilings.
Install smoke alarms at least three feet from vents, which might recirculate the smoke.
Never place smoke alarms on uninsulated walls or ceilings.
Extreme temperatures can ruin batteries and prevent smoke from reaching the alarms.
Exit drills in the home Smoke alarms provide an early warning system to allow you and your family extra time to get out of the house fast during a fire.
If the alarm sounds be sure each family member knows what the alarm sounds like and what to do.
Families should regularly practice Operation EDITH - Exit Drills In The Home. This means having a prepared escape plan, with two possible escape routes from every room, and a prearranged meeting place outside the house. Families should actually run through a fire drill at least twice a year.