Reclaiming Waste Heat

http://nextbigfuture.com/2008/11/low-temperature-energy-harvesting-new.html

http://venturebeat.com/2008/11/18/need-more-power-try-recycling-what-youve-already-used/

http://www.grcblog.com/?p=884 http://www.chpcenternw.org/Library.aspx
http://www.northeastchp.org/nac/sitemap.htm

http://www.cyclonepower.com/


Electrotherm

http://www.electratherm.com/recycled-energy.html
http://www.popsci.com/bown/2008/product/electratherm-green-machine




Casten wrote a book on this.

http://www.greentechmedia.com/articles/tapping-americas-secret-power-source-5259.html

http://www.greentechmedia.com/articles/will-waste-heat-be-bigger-than-solar-5577.html