Smoke Detectors

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What are the different types of smoke detectors?

The two main types of smoke detector use ionization and photoelectric sensors to detect smoke and trigger the alarm. Ionization detectors are faster to activate, while photoelectric detectors are better for warning you when there's a slow fire. If you want the best protection, having both types installed in your home is a good option.

How does a smoke detector work?

Photoelectric smoke detectors have a light source that will be deflected onto a sensor when smoke enters it. Ionization detectors use a small radioactive source to create current between two plates, which is disrupted when smoke enters, triggering the alarm.

Are there any smoke detectors that detect carbon monoxide?

There are, and they're a great way to expand your protection and awareness of any noxious gasses or leaks in your home.

Where should I place smoke detectors?

For optimum coverage and the best level of protection, there should be at least one smoke detector on every level of your home. There should be a smoke detector near sleeping areas, one near your furnace, and one near the kitchen. You may not want to place a smoke detector in the kitchen, as it might be triggered too often while cooking. Placing smoke detectors near stairways is a good idea.

Should smoke detectors be on a wall or ceiling?

The rule of thumb is to place smoke detectors on the ceiling, as smoke tends to rise. Wall-mounted smoke detectors should be within 12 inches of the ceiling for best coverage.