Yeah... there are lots of things I can do myself, but electrical wiring is a) not something I already know how to do, and b) not something I'm terribly interested in learning.
Not that I *couldn't* figure it out by reading the instructions and watching YouTube videos... but there are only so...
Like just about everyone else, I started out heating water on a propane camp stove and stopping before every scald to get the temperature right before dunking the birds. I also tried an electric heating element, but with no thermostat it had the same problem of fiddling with the temperature...