Radon fans, also known as radon mitigation systems, are saviours and generators of annoying buzzing sounds.
The radon fan buzzes for a variety of reasons. It usually happens when you use the fan for longer than its expected lifespan of 5 to 10 years or when water or dirt gets stuck due to poor maintenance.
However, if you’re wondering how to reduce radon fan noise in your home, we’ve covered you. Sift thru to find all you need!
What Is Radon
Radon is a highly radioactive gas that is naturally emitted into the air and has no color or odor. Radon is primarily produced by radioactive elements such as thorium and uranium decay.
There is no long-term solution to radon emissions. But you do have control over it. In addition, you must monitor your indoor radon level.
The concentration of radon gas is measured in picocuries. According to EPA guidelines, the radon concentration in your home should not exceed 1.3pCi/L. If it exceeds the 4pCi/L limit, you must install a radon mitigation system.
What Is A Radon Fan & How Does It Help
A radon fan is an indoor ventilation system that sits beneath the house’s flooring and traps radon gas. It is also referred to as a radon mitigation system.
The primary function of this fan is to generate a negative force that prevents gas from entering the house and transporting it outside via the vent pipe.
Radon fan uses this mechanism to keep the harmful radon gas at a tolerable level, ensuring the safety of your family members.
What Causes Radon Fan Noise
There are several reasons why the radon fan makes noise. The majority of the noises are technical and easily solvable. We’ve listed the three most prevalent causes of radon fan weird noises.
- Fan noise (Motor noise): The radon fan’s most common noise is airborne fan noise produced by the radon fan. When the motor inside the fan runs at full power, it makes such humming noises.
- Turbulent airflow (Regenerated noise): The fan’s airflow causes regenerated noises. When the air inside the fan flows through the blades, it creates pressure and generates a humming, turbulent airflow noise.
- Fan vibration (re-radiated noise): The vibration is caused when the ductwork and the fan contact the structure or when the blade gets unbalanced. Furthermore, the vibration generates vexing buzzing re-radiated noises.
How To Reduce Radon Fan Noise
If radon fans are not properly maintained, they can produce annoying high-frequency sounds that are annoying and harmful to your health. When using a radon fan to protect your lungs from radon gas-caused cancer, you may not want the noise of the radon fan to cause anxiety. So, here are some of the most effective radon fan noise reduction methods:
Using The Right System and Thick Insulation
It is the most basic method to apply if your radon mitigation system makes a humming noise. You might think that using a more powerful fan will produce better results. This is erroneous because radon gas emits slowly. And a radon fan with lower wattage and power can do the job effectively.
Also, it can save you over 500 bucks a year. If you live in a large house, you will require a larger fan. After installing the fan, you can also use thick insulation around the pipes and motor to reduce noise.
Meanwhile, you have to keep in mind that you are installing the system and the fan in the right place to get effective results. Place it far from dwellings and on a low-level concrete floor slab. In addition, you can also place the system and fan inside a brick wall or on the rafter.
Controlling The Turbulent Airflow
The most effective and difficult way to reduce radon fan weird noise is to control the turbulent airflow. When installing the radon mitigation system, certain considerations must be made to control the turbulent airflow. They are as follows:
- Keep no bends on the pipes or fittings unless necessary. It will relieve pressure on the fan while maintaining natural and noiseless airflow.
- Ensure that the velocities inside the pipe are as low as possible and that pressure drops are kept to a minimum.
Overall, if you keep these aspects in mind when installing the mitigation system, it will be noise-free for a long time.
Keeping The Vibration Under Control
As the radon fan includes a motor, the fan induced vibration is a must. There is no non-vibrating mitigation system available. As a result, the only thing you can do about the vibration is controlled it. Certainly, it is not difficult to control during installation, but it becomes more difficult later on.
Keep the ductwork and fan away from the building’s structure to control the vibration. If it comes into contact, the vibration will travel and make noises.
Another useful solution is to locate the fan and system in a secure location. Furthermore, the strong support will withstand the vibration and keep it under control by keeping it rigidly in place.
Frequently Asked Questions
According to radon experts, the average lifespan of a radon fan is 5 to 10 years. Yet, with proper maintenance, you can extend the fan’s life to up to 20 years. Nevertheless, it is best not to use a radon fan for an extended period. Since it has to deal with many radon gases, the structure deteriorates over time. So, after a certain amount of time, keep changing the fan.
No, you can’t. The discharge of radon gas from the ground is a continuous process unaffected by day or night. As a result, turning off the radon fan at night is not a good idea.
Yes, if the radon fan is in the attic, you can still hear it. As we all know, the radon fan is connected via PVC pipes, which are a great source of vibrations. As a result, you can hear the noise. Consequently, if you wrap the pipes in thick insulation, you may not be able to hear the noise.
You now understand the dangers of radon and how to reduce radon fan noise. It’s time to have your household checked and install a proper radon mitigation system.
Keep in mind that radon gas is responsible for 3 to 14% of all lung cancer cases in the United States, as WHO(World Health Organization) reports. That means that radon kills approximately 25,000 people each year, ranking second only to smoking. So, make your decision now to protect your family.