Flexwatt is a common way to heat containers on shelves. So I have gathered some How To videos on assembling the Flexwatt.
Assembling with clips..
Soldering the wires instead of using clips
Wiring the heat mats in series ..
Diagrams…
Flexwatt Connectors Flexwatt Wiring Flexwatt in parallel
Where do I get it..
BigAppleHerp.com
BeanFarm.com