re: venting dryer indoors? SOLAR.KnowledgePublications.com

re: venting dryer indoors?
4 aug 1997
i wrote:

>...maybe condense the water vapor from the clothes back into water in some
>sort of heat exchanger, for instance two long concentric tubes, with dryer
>air flowing out into the room through the outer tube, and room air flowing in
>the opposite direction through the inner tube into the dryer intake.

or fill the inner tube with water... a 4 kw dryer running 20 minutes makes
enough heat to warm 50 pounds of water in a sealed $4 10' x 4" d pvc sewer
pipe about 90 f, from say 70 to 160 f. this might slowly heat a room, after
the dryer is done, or heat water via a loop through a water heater upstairs. 

nick