Crushed stone dehumidifier? Answered
We have a house in Maine and when we bought it there was a big built-in box in the basement 3' X 8' by 4' tall filled with crushed stone. It is huge. It has an electric fan that pulls air down through the stone and pipes it upstairs to a sun porch. Unfortunately the fan has never worked for us so we are unable to "test" the system. This basement does get damp in the spring and we would like confirmation that this is probably a home-made dehumidifier. What do you think?