Quote:
Originally Posted by hikerbob
You will also want some kind of controller, a range of options (I've made my own and published details in the Projects area as have others). Getting things too hot wastes power.
DIY generally involves some kind of PWM (Pulse Width Modulation) device,
Bob
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Bob, (and others that make the same claim), why does a heating set-up necessarily need PWM.
I built mine without one and it's worked fine for the last few years. What is the need for it?
Sounds to me like an unnecessary item to make the DIY build even more complicated.