An effective and affordable way to reduce radon levels in homes using side wall venting is available from Tjernlund Products, Inc., a manufacturer of side wall vent systems for gas and oil fueled heaters. Called Radon VAC™, the proprietary system consists of a plug-in fan, exterior hood, and installer-purchased PVC pipe. Because the Radon VAC side wall system evacuates through the basement side wall, homeowners can avoid having PVC pipe run vertically through living areas or outside of their homes to the roof line.
The Radon VAC system is engineered to reduce radon across a variety of sub-slab soil types. It features a sealed, galvanized fan housing and a PSC permanently lubricated, quiet, low watt motor. Unlike traditional radon fans, the motor is not exposed to air stream moisture, increasing motor life. The low-profile, corrosion-proof Radon VAC Variable Aspiration Control Hood dilutes the radon gas with fresh outdoor air as it exits the hood and safely propels it away from the structure. The dilution and velocity are easily adjustable at the hood to enhance the system’s performance in high-pressure drop applications.
Installation of the Radon VAC system requires a 4” hole through the home’s basement rim joist and exterior finish, plus enough 3” PVC pipe to run from the radon extraction point to the Radon VAC hood. The fan is typically installed between floor joists. A rubber isolating mounting bracket eliminates vibration transfer and rotates 360º to accommodate any orientation.