FB, how do you propose to secure the trace against the vessel? On brew belts, the end has a termination with a hole in the heat shrunk part - this might be tricky, but far from impossible, to achieve with the stuff I have.
In fact, thinking about it, I guess one could insert some sort of washer/other thing with a hole/slot in it, and simply encase it as part of the heat shrink process. Idea!
Also, with the constant wattage - does that not just heat up up up your brew? Maybe that's what you want?
But yes, self reg trace will do just that - but it will respond to the ambient of the room it's in, so not sure if that's a good thing either.
Let me know, ok?
Thanks.
Tim