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1. HaHa. Tumble-dryer vent.
   In my student days we lived in a flat with electric baseboard heat. We generally left it off unless we were actually in the room, and then we would set it to 60F. The only exceptions were the bathroom, and the kitchen, which was heated to 68F by the first person up and then turned to "just above freezing" by the last to leave in the morning.
   But the laundry had to be done, and every time that machine was rumbling I was sitting there in the next room shivering in my homemade slanket, with visions of the glowing red heating coil that was running next door. We were paying to heat all that air AND THEN PUMPING IT OUTDOORS! What stupidity!
   But I know not to vent the dryer in to the same room containing the dryer, therefore I purchased a new vent-pipe and made a subtle 4" hole through the wall into the living space.
   Of course, while the heat and sauna was a welcome change, we began after half a load to think that the peeling paint might put us on the landlord's bad side, so a new approach was needed.
   Hence plan B: Run the vent into the living-room, but continue the flex-pipe around the perimeter of the room and THEN dump the humid air outdoors.
   Fortunately the vent-hose was waterproof, for halfway through the next laundry load we had condensed enough water in the hose to completely block it.
   It was generally agreed amongst the housemates that although heat was nice, the need to interrupt our study every five minutes to turn off the dryer and empty our still was too high a cost.
   Still, even 20 years later I'm still pondering inexpensive homebrew air-to-air heat exchanger designs that can handle lint and self-drain the condensed moisture.

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2. Douglas- Hilarious story.

   Thanks for reading and commenting.

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