~ In each bedroom or sleeping area. 

~ Directly outside of each bedroom or sleeping area.

~ On each story of the dwelling, including basements, but not including crawl spaces and uninhabitable attics. 

~ Smoke alarms should be mounted on the ceiling 4 inches from the wall, or on the wall 4 to 12 inches from the ceiling. Do not install near drafty areas such as windows.

~ Directly outside of each bedroom or sleeping area.

~ On every level of a dwelling, including basements. 

~ Any location where propane appliances are used. 

~ The lowest conditioned space and any crawl space in the dwelling.