What is the maximum distance between the top of a wall-mounted smoke detector and the ceiling?

The maximum distance between the top of a wall-mounted smoke detector and the ceiling is specified as 12 inches. This guideline is in place to ensure that smoke detectors can function effectively. Smoke rises, and if a detector is installed too far away from the ceiling, it may not detect smoke efficiently, potentially delaying the alarm in the event of a fire.

Installing the detector within 12 inches of the ceiling ensures it can accurately sense smoke that accumulates near the ceiling, where it typically begins to accumulate first. This placement maximizes the detector's sensitivity to smoke particles while adhering to safety regulations and manufacturer recommendations, promoting timely alerts to any fire hazard present.