I just placed my order, but I've used these stills in the past, and they do work. so some tips for everyone- you can't use a closed container for cold water unless you intend to sit and add ice or replace the water. the water HAS to be cold at all times. not warm not kinda cold but cold cold. I hook my water hose to the inlet port and just drain it as it stays filled. you just have to find the balance. seems to work fine. for the guy using induction heat- you are heating it without liquid in it. of course it's going to warp. wtf. with liquid in it the metal won't get any hotter than the boiling point of the liquid inside. simple thermodynamics. heat your product low and slow. I prefer a propane turkey fryer burner. leaks will kill it. it must be sealed. at around 180 185 you should see liquor. at and after 200 you're getting into water boiling territory. I've never used stainless condenser coil only copper but either way keep it cold! don't overheat too fast! good luck. I'll post a review after I use mine