Meet the fan curve.
Radon gas exhaust fan.
The pvc duct system is through where the radon fan exhausts the harmful radon gas from your basement.
The critter and the fan rarely survives.
It s not a problem everywhere but the bedrock in some regions produces enough radon for it to concentrate on basements enough to raise the risk of lung cancer.
One end of this pvc duct is connected directly into a hole drilled in your basement s concrete floor or it can be connected to your sump pump pit.
The rn4 4 is equiped with a speed controler that can be used to dial in the fan as required.
When installing an asd system for radon reduction any openings major cracks and penetrations in the building slab or membrane must be sealed.
If you have a radon level of around 4pci l the level of radon being pushed out of the exhaust side of the fan can be many times higher even into the 100s of pci l.
It happens all the time.
Fan curves tell you how much cfm you re moving at a given resistance or suction measured in inches of water column pressure.
When planning your radon exhaust location be sure that windows on a 2nd or 3rd story that over look the vent are at least 10 feet away.
The purpose of a radon fan is to draw radon from out of the soil below the home and release it safety above the house.
A varmint guard or critter guard will keep acorns hail stones and yes small animals out of the fan.
Fantechs rn4 4 is the most powerful model in the radon family the the rn4 can create 4 3 of vacumm while moving 20 cfm of air or move 490 cfm air at 0 5 of suction.
Think of it as the core of your complete radon risk control strategy since it s the only way to remove the gas from your home actively.
Quality radon exhaust fan.
Radon is a radioactive gas and known to be a carcinogen.
The primary role of a radon exhaust fan is to remove the radon from below your home to an outdoor area in the safest most efficient way possible.
Radon test kits are readily available online and in home centers.
The radonaway rp145c radon fan is built to resist moisture and can be mounted inside or outside on a 3 in.
Schedule 40 pvc vent pipe using 3 in.
Its potentially life saving roles.
Radon suction pipes are installed in the collection chamber and continue to the radon vent fan.
Don t forget a cap for the pipe.
The intention of that design is to keep it far enough from open windows to prevent the radon gas from re entering the home but that is unnecessary and can work against you.
Steps for installing radon mitigation.
Draintile depressurization is the means of pulling the radon gas and other soil gas by creating a vacuum within the existing draintile network of a sump or drainage system.
This duct is in most cases 4 in diameter.