I mined with ~5kw of gear in an apartment before.  After going through a bunch of fans I eventually got this one.  It is a beast; by simply running it on high with a second window open elsewhere ( otherwise you get mixed pressures ) it would lower the temperature in the apartment by 30 degrees in under a minute.  Can run as intake or exhaust without moving the fan.  One of these should do the trick; 2 of them for sure.

https://www.amazon.com/Lasko-2155A-Electrically-Reversible-16-Inch/dp/B00FXOFNYQ/