Efficient Dupont Radon Mitigation

Selecting the correct replacement fan requires knowing your pipe diameter - typically 3 or 4 inches - as well as the airflow and static pressure requirements of your specific system. A diagnostic test performed with a manometer can help determine whether your system needs a high-flow or high-suction fan based on your soil conditions and sub-slab communication. Simply matching the brand and model number of the old fan is a reasonable starting point, but upgrading to a higher-performance fan may be warranted if the original system underperformed. When in doubt, consult a certified radon contractor who can evaluate the system and recommend the most appropriate fan for your home.

No, radon fans vary significantly in airflow capacity, static pressure, motor size, and power consumption. The right fan for a given home depends on the soil permeability beneath the foundation, the size of the suction pit, the pipe diameter, and the total pipe length and number of bends in the system. Installing the wrong fan, whether too weak or too powerful, can lead to inadequate radon reduction or unintended consequences like over-depressurization. A certified radon contractor can conduct a diagnostic evaluation to recommend the best fan for your specific system.

A non-functioning radon fan allows radon gas to accumulate inside the home, often reaching levels far above the EPA's action level of 4 pCi/L. Radon is the second leading cause of lung cancer in the United States, responsible for approximately 21,000 deaths annually, making prolonged exposure a serious public health risk. The danger is particularly high in lower levels of the home, such as basements, where radon concentrates most heavily. Prompt repair of a failing system is one of the most important steps a homeowner can take to protect their family's long-term health.