Fixed Gas Detector Mounting Height

August 3rd, Sioux Falls, SD –

A frequent question we receive is, “At what height should I install my gas detector?” The answer depends on the density and weight of the gas you’re monitoring. In this post, we’ll guide you through the most common types of gases and recommend the proper mounting locations for Macurco gas monitors to ensure safety.

Gas detectors come in various types, each designed for specific applications. This article serves as a reference for Macurco gas monitors. For detailed installation instructions, always refer to the product manual and adhere to local codes and Authority Having Jurisdiction (AHJ) requirements. If you have any questions about mounting, we recommend emailing us at [email protected] or contacting Macurco directly at 877-367-7891.

Please see the chart below for information on mounting heights for common gases. Click here to download the chart as a PDF.

Things to Consider:

The optimal height for mounting a gas sensor is determined by both the application and the gas’s density compared to air. Sensors for heavier-than-air gases should generally be positioned 6 inches (15 cm) to 12 inches (30 cm) from the ground, as these gases tend to settle near the floor. For lighter-than-air gases, sensors are best placed near the ceiling or on high surfaces as these gases rise. Gases with a similar density to air, like carbon monoxide, should be detected within the “breathing zone,” which is typically between 4 to 6 feet (1.2 to 1.8 meters) from the floor—where most people breathe. This zone is often the most effective location for monitoring, as gases in this range tend to mix evenly with the surrounding air.