Are you sure you want a ERV and not an HRV. An ERV is a recovery wheel and a HRV is a plate exchanger. The ERV will recovery the indoor humidity and blow it back into the basement. The HRV is will vent all the air outside, but on a humid day you may bring in more humidity than your exhausting. Unless you live in a dry climate like Utah, you will need a huge amount of outside air to dry out your basement.
Dehumidifiers are only designed to dry rooms, ERV are made to recover air conditioned rooms.
Last edited by Silent Bob; 09-04-2008 at 06:25 PM.