Radon Gas Exhaust Fan

Fan curves tell you how much cfm you re moving at a given resistance or suction measured in inches of water column pressure.

Radon gas exhaust 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. 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 radonaway rp145c radon fan is built to resist moisture and can be mounted inside or outside on a 3 in. The pvc duct system is through where the radon fan exhausts the harmful radon gas from your basement.

Its potentially life saving roles. Radon is a radioactive gas and known to be a carcinogen. Radon stacks are often brought up through the walls and vented out through the roof like a plumbing stack. This duct is in most cases 4 in diameter.

Quality radon exhaust fan. A varmint guard or critter guard will keep acorns hail stones and yes small animals out of the fan. Radon test kits are readily available online and in home centers. When installing an asd system for radon reduction any openings major cracks and penetrations in the building slab or membrane must be sealed.

Don t forget a cap for the pipe. Radon exhaust stacks placement to avoid freezing in cold climates. Radon suction pipes are installed in the collection chamber and continue to the radon vent fan. Steps for installing radon mitigation.

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. However with radon fans you re at the mercy of soil conditions sub slab fill suction pit sizing and much more. 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.

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. It happens all the time. The critter and the fan rarely survives. Schedule 40 pvc vent pipe using 3 in.

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. 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. Meet the fan curve.