Radon Fan Attic Noise
I have discovered the problem.
Radon fan attic noise. When installed through the attic space the radon fan and its electrical components are located within the attic. I have never found a radon fan more than a bit warm even if the motor has been stalled by some blockage so there appears to be no concern about causing a fire from the fan overheating. Instead of having the fan and venting pipes on the outside of the home the only visible component on the outside is the vent stack that rises through the roof. This location is more innaccessible to children who may turn the fan off or play with the system components.
Is your radon fan starting to get loud. Make sure the fan has rubber dampers between it and the pvc use a dimmer switch to run the fan at a lower speed use a smart switch to put the fan on a timer. Although radon systems installed through the exterior are quiet installing the fan inside attic space can prevent all noticable system noise. The radon system is hidden.
Air flow and vibration. This makes it more inaccessible to children or animals to get at. The amount of cfm cubic feet of air per minute the size of the pipe determines how much airflow can be pushed through the system. If that helps enough find some weather resistant material to wrap around it or maybe put it inside a constructed shell that matches your house exterior.
Set timer to go off at bedtime replace fan with quieter fan secure pipe better to reduce vibrations. If your fan stops working it needs to be replaced as soon as possible. If the radon fan is located in the attic of the house or garage you can wrap the fan with fiberglass insulation. There are two noises that are generated by the radon system.
If your radon fan sounds like this. Electrical components are out of reach. Can replace the old fan with a new one. Try wrapping a blanket around the fan just to see how much it reduces the noise.
When a radon system is installed in the attic space the fan and all electrical components are also located in the attic. It also might work to put some kind of wall covering on the inside wall next to the fan. This video will compare a new radon fan to the noise created by an old radon fan. After documenting the temp and rh in both the house and crawl space i have discovered the radon fan is somehow bringing humidity outdoor air into the building envelope.
Thanks everyone on the feedback concerning humidity and attic insulation. Radon protection systems inc. I noted the rh and temp in both the crawl and home with the radon fan running and i did it in the evening hours so the. The air flowing through the fan will maintain the fan temperature.