Forum Discussion

rrev's avatar
rrev
Explorer
Jul 14, 2015

Reversible roof vent fan

I need to replace my roof vents with new fans. I want to do something that is multi speed with forward and reverse. I know there are some out there but they're expensive and I'm cheap. Has anyone done anything like this without spending a fortune? If I can modify something, that's fine too.
  • rrev's avatar
    rrev
    Explorer
    Aug 18, 2015
    Well, I didn't make it reversible. I ended up replacing it with a Vortex II fan with the PVM that Lynnmor linked to an above reply. I LOVE IT!!! Nothing like being able to have a multi speed fan for a lot less money. I highly recommend this mod.
  • budwich's avatar
    budwich
    Explorer
    Jul 14, 2015
    I think if you have a "standard fan" (ie. one that is DC, operating on 12v) then it basically just needs to have the leads reversed to turn in the opposite direction. It then can be done with a dpdt switch.
  • Skid_Row_Joe's avatar
    Skid_Row_Joe
    Explorer
    Jul 14, 2015
    rrev wrote:
    I need to replace my roof vents with new fans. I want to do something that is multi speed with forward and reverse. I know there are some out there but they're expensive and I'm cheap. Has anyone done anything like this without spending a fortune? If I can modify something, that's fine too.
    Fan motors should be available for replacement via the Internet.

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