Originally Posted by |MaguS|
Well you make the exhaust through the back of your case, not into it.
There is still going to be a lot of ambient heat because the card itself is, literally, burning up.
The heatpipes are not enclosed therefore they are dumping heat into the case as well.
Yes the air will be exhausted but anyone with a closed case is likely going to see a nice pocket of heat where the cards reside simply because of physics.