What is the minimum distance a smoke detector must be placed from a supply air grill?

The minimum distance a smoke detector must be placed from a supply air grill is 3 feet. This guideline is important to ensure that the smoke detector operates effectively and is not influenced by airflow from the grill. When smoke detectors are placed too close to air supply grills, they may experience airflow disruptions that could affect their ability to detect smoke accurately.

At a distance of 3 feet, the smoke detector can function properly without interference, allowing it to provide an early warning in the event of a fire. This helps to maintain the integrity of its detection capabilities and ensures the safety of the environment it is monitoring.

If the detector were placed further than this distance, it might still operate efficiently, but guidelines specifically recommend a minimum of 3 feet to minimize false alarms caused by air movement. Understanding this placement is crucial for effective fire safety measures.