ajriding wrote:
mindless is when people just look up "speed controller" and post a bunch of links, none that are relevant usually.
That Guide to put a controller in is nice, but not anything to do with what I want - to have a controller that uses less energy at lower speeds.
I have my controller feeding the FF, so have control on a wall, not at the fan. I can always put controller at max and run the FF normally. I set FF on High and control the speed by using the controller.
The PWM things have big heat sinks, so are producing heat. IDK beyond that, so am asking any electrical geeks out there who might know
You seem to be contradicting yourself here. The controller in the linked guide is a PWM, as is your controller that burned out. It's about the most efficient speed controller for your fan that you will find. The reason for the big heat sink is so it won't burn out like your old one. You can still mount it remotely from the fan & bypass the local fan switch, or just leave it on high.
And those coils are not "heating elements", they are resistors.