Installing Smoke Detectors

Ask Danny, Home Improvement, Safety and Security, Video by Danny Lipford

I’d like to add some extra smoke detectors to my home, but I want to make sure they’re reliable. Do I need to have them hardwired? - Amy from Ohio

Smoke alarms are one of the best safety features you can buy for your home and can be purchased for as little as $7. While smoke detectors are hardwired into houses in new construction, battery powered unit are best for existing homes. They are easy to install, but you need to remember to changes the batteries about twice a year. Install at least one smoke alarm per level of your home near the bedrooms, and another in the garage.

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2 Responses to “Installing Smoke Detectors”

  1. Ann Lapierre Says:
    August 6th, 2008 at 2:49 pm

    Danny:

    I have an older nutone hardwired smoke detector that is buzzing or humming. This has just started and I’d like to know if you have any suggestions on what could cause this and any possible fixes. The detectors were installed with the house in 1975. Nutone Model S180.

    Thanks for any help
    Ann

  2. Daven Gus Says:
    August 13th, 2008 at 7:36 pm

    Ann-
    Smoke detectors should be replaced every 10 years as the sensor inside of them becomes unreliable after this length of time. Consult a licensed electrician about replacement.

    Danny-
    Smoke detectors should not be installed in a garage; due to false alarms. A heat detector is the better choice, following the manufacturers instructions.

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