DIY Heating Cables


 >> I would love to hear from anyone who has blazed this trail ahead of me.

I'm sure there are instructions on this on the net.  But I have built low
wattage systems and have written a file detailing how, and including
calculations for a wide range of tank sizes using either 12V or 24V
transformers.  If you are interested let me know and I'll email you the file.
It also includes mail order sources.