So Mike Monet was looking for this type of tubing for his generator. I was about to share it with him, but then discovered he had removed me from his silver forum for disagreeing with him...on a different forum that that one...go figure...Also, FYI, it turns out he is really suffering seriously from mold related illness and never brought it up here.
http://www.riogrande.com/Product/999-Fine-Silver-Seamless-Tubing-Soft/100930 Anyway, some of you might benefit instead. I will definitely be trying this out in the future with Mike's super low current ideas. These tubes increase surface area by a whole lot. David