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How many smoke alarms do I need in my home?

July 30, 2008

On average, families have less than three minutes from the time the first smoke alarm sounds to escape a fire.  The sooner you hear an alarm, the more time you will have to get out. Install smoke alarms on every floor of your home, in hallways, inside bedrooms and outside of sleeping areas.  In compliance with the National Fire Protection Association (NFPA), smoke alarms will cover a radius of 21 feet, and an area of coverage of 1,385 square feet.  The maximum distance between two smoke alarms should be 30 feet.  If a hallway is greater than 30 feet, a smoke alarm must be installed at each end. 

Alarms can be sensitive to smoke from a kitchen and steam from a bathroom.  Consider installing alarms away from these rooms if possible to avoid potential nuisance alarms. 

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