no you dont, all you need is a thermometer, a straw, zip tie freezeer bags, hot water and an esky
I sous-vide almost all my red meat and a lot of other stuff at home, and I dont have a controller
Nah, would be less... even with the capability to have that much power they will provide a detuned engine that can handle any fuel that idiots put in it, and then increase the output by like 5kw with each new model