Radon Fans High Volume

With the exception of the Rn4EC, most radon mitigation fans fall into two categories: high-suction or high-volume.  High-volume radon mitigation fans typically move more air with less resistance.  These fans work best with high pressure field extension and porous soil conditions. Radon fans in this high-volume category include the HP 220 (Rn3) and the RP 265 by RadonAway.  When these fans encounter low pressure field extension or “tighter soils”, they tend to “max out” quicker.  As always, utilize a micromanometer, the pressure field extension diagnostic kit, or PDS by phone to properly size your fan.