Herpstat or rheostat?

[Bogertophis]

.... If you spend money on a snake and want to skimp on the proper equipment, then people don't have any business owning a snake.....

I hesitated to respond to this question because I knew one of you would say this (& you're wrong & you don't know me-!) but that's why I qualified carefully
what I said. I'm busy & I'll leave it at that for now. I just felt that the information given was a bit one-sided...rheostats do have their uses. I would however
stay far away from the cheap brands I've seen in pet stores (can't remember specific brand, tried one ages ago), ironically they do seem to have issues, if
one can generalize from a single poor quality item (& for safety, one should).