I have made the box using plexi glass and plywood. I used the search to get the idea on the box. My question is what type or size motor to use. I read about using a box fan motor, ordering one from Granger, use a furnace blower motor, which would be most efficient and do the job. I have access to 2 of the 3. And what is the best type of wheel to use once I get the motor part figured out. I would appreciate any info I could get. Or if you know of any web sites that might help me out. I did a google search but didn't really come up with any info on motors.