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Reusing natural heat/cold should really be more common... Free energy. I remember seeing designs for a shower whose drainpipe wrapped around the cold water pipe
by Partyboat 16y ago
Reusing natural heat/cold should really be more common... Free energy. I remember seeing designs for a shower whose drainpipe wrapped around the cold water pipe. The heat transfer through the pe between the two made for a 30ish percent energy reduction.
- DaniFong 16y agoThis is a very good idea -- one can increase the heat exchange quick dramatically, actually. This works also for washing machines, driers, and dishwashers.
- joezydeco 16y agoHere's one place that sells them. Pity that copper is so expensive.... http://gfxtechnology.com/ http://gfxtechnology.com/