Minimum Distance Generators Should Be From Air Intakes?

Generators and Carbon Monoxide Safety

Carbon monoxide (CO) is a colorless, odorless, and tasteless gas produced by generators, especially when they run on gasoline or propane. It’s essential to prevent CO buildup around air intakes to ensure a safe environment.

Ventilation Requirements

The National Fire Protection Association (NFPA) recommends a minimum distance of 20 feet between generators and air intakes. This distance helps to reduce CO concentrations near air intakes, minimizing the risk of poisoning. For larger generators or those with higher CO emissions, a greater distance may be required. Typically, a 25-foot distance is recommended for generators with 1-2 kilowatt ratings, while those with 5-10 kilowatt ratings require at least 40 feet of clearance.

Measuring CO Levels

To ensure safety, CO levels should be measured near air intakes. A CO detector with a sensitivity of 30 parts per million (ppm) is recommended. Regularly monitoring CO levels will help you determine if adjustments to generator placement or ventilation are necessary. Keep in mind that CO detectors can be affected by temperature and humidity, so it’s essential to follow the manufacturer’s guidelines for placement and calibration.