What type of power source is required for a smoke alarm in a one and two family dwelling?

o  Structures built before July 1, 1975 shall have a 10 year lithium battery powered smoke alarms or combination alarms that are sealed and tamper-resistant.

o  Structures built between July 1, 1975 and June30, 1990, shall have an AC primary smoke alarms or combination alarms.

o  Structures built on or after July 1, 1990 shall have an AC primary with battery backup smoke alarms or combination alarms.

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1. How often do smoke alarms, smoke detectors, carbon monoxide alarms, and combination alarms have to be replaced?
2. What are the required UL listings for smoke and carbon monoxide alarms?
3. On what levels of a dwelling are alarms to be installed?
4. Where are alarms to be installed near bedrooms?
5. Are the alarms to be interconnected?
6. Are carbon monoxide alarms to be interconnected?
7. What type of power source is required for a smoke alarm in a one and two family dwelling?
8. What type of power source is required for a smoke alarm in a three family dwelling?
9. What type of power source is required for a smoke alarm in a four or more unit dwelling?
10. What type of power source is required for carbon monoxide alarms?
11. What type of smoke alarm or carbon monoxide alarm is required for deaf or hearing impaired occupants?
12. How close can a smoke alarm be to the corner of the wall and ceiling?
13. Where can a smoke alarm be installed on a wall?
14. Where is a smoke alarm to be installed when you have a peak ceiling?
15. Where is a smoke alarm to be installed on a sloped ceiling?
16. Where is a smoke alarm to be installed on a tray-shaped ceiling?
17. Are smoke alarms allowed to be installed near cooking appliances?
18. Can smoke alarms be installed near bathrooms?
19. Can smoke alarms be installed near ceiling fans?