The only way I see it being practical is to design some
sort of heat exchanger to use the outgoing hot, humid
air to heat the incoming cool, dry air.

Might be useful in an airtight house. A 55 gallon drum with a dryer feed at
the top and a removable lid and some cheesecloth under the lid and over 27
3'x4" capped vertical thinwall PVC water pipes with air and water outlets
near the drum bottom might be more efficient for the rest of us.

Nick