Why are my battery powered smoke detectors not good enough?

Answer: The National Electrical Code which sets the minimum safety standards for the electrical system in your home, requires that each smoke detector in your home be hard-wired into your electrical system, battery back-up, in case your power goes out, and interconnected with your other smoke detectors. So if one goes off, they all go off. A smoke detector is required in each bedroom and one is required within six feet of your bedroom door. A C.O. detector is also required to be installed within 15 feet of your bedroom door is you have natural gas, propane or an attached garage.