recover heat from clothes dryer?

 

Has anyone found a way to recover the heat without
too much humidity and lint?

 



Most of the heat generated by a clothes dryer is used to evaporate the water
contained in the clothes - to get it back, you'd have to condense the vapor
back to liquid water.  Such machines exist - they're called condensing
dryers.  They're not cheap.

If you just direct the vent from a normal dryer inside, the amount of
humidity is the same as you'd get if you hung the clothes up to dry inside,
though it probably gets dumped into the room in a shorter amount of time.

I'd worry more about lint - breathing it in.