Uh huh. I enjoy blonde marketing statements. Put a fan facing outward from your basement window and suck the warm air from upstairs to lower your humidity in the basement. True, drawing cold winter air from outside through the cracks around doors and windows lowers the humidity in the house as effectively as opening a window and only requires enough extra heat to replace the heated air going out the blower.
However, I prefer the TinFoilHat condensing exchanger - a metal box the same size as a window placed to hang outside like a window air conditioner. The warm, moist air condenses in the cold box and drips out a hole on the bottom to the outside. It uses no electricity, lowers the humidity, and covered with a decorative grill can sell for some thousands of dollars - as much as the suede shoe can bear.
Even with that, many provinces require a mechanical air exchanger just for that purpose of a too-tight house. It's better than legislating that people should open their windows a crack.
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