2012 International Mechanical Code (your area may use a different code, but they're usually similar) requires 3/4 CFM per square foot of floor area which works out to 840 CFM for your footprint. That's still not a huge fan. A 12" propeller fan with 1/4 hp motor will put out that much air. You can probably buy one for less than $200.

Last edited by klhansen; 10/15/2019 9:47 PM.

Kevin
1951 Chevy 3100 work truck
Follow this saga in Project Journal
Photos
1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.