Learn to easily calculate fan speed to get the CFM you want. How to change V-belts properly and safely. Fan problems and maintenance. Practical knowledge for fans and V-belts. Here’s every practical ...

And, if you're a "belt and suspenders" person, you can install a hard-wired attic fan for the occasional super-hot day in San Mateo. Aug 26, 2009 Bill Burnett and Kevin Burnett ...