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Tornado

variac with thermostat

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 thanks

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i have a variac but it's manual, you can't automate it imo. you would be better off buying a purpose made controller like an smscom one

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Check out my simple fan controller thread it's pinned at the top of the page.  It's several years old now and I have no idea where to source cheap variacs any more but it should give you a good start.  I'm still using mine!

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