variac

Looking on a single variac setup to control my exhaust tornado box fan wouldnt mind been abit more automated to go slow and faster when need to So what would i need to buy thermostat and some sort of relay Then the wiring what goes where? Should i wire the intake in so slows down with outtake...

i have been looking at a 7.5 amp variac speed controller for a 10 inch 4250m3 6amp 550 watt tornado box fan shown in the picture its to powerful for my needs so its either a speed controller to lower the speed or buy something different like 10 inch isomax something like that..anyway Has any...

Hello, I recently bought a variac fan speed controller which I have wired and installed a single socket onto today. The problem is when I went to take off the speed controller built into the wire of my fan This fan, its the 200mm version with 3 speed control...