Pushing air into the room is more effective & efficient than trying to exhaust it. Give it a try both ways and take temperature readings, youll be surprised. Good luck!
I am considering placing my 4 x L3's in my garage to assist with cooling and air movement. I live in the Northern hemisphere and my garage in between the sun and my house so usually in the shade.
I am wondering about humidity, dust and -30* temperatures, as humidity, dust levels and temperature changes outside, how much of an effect will this have on the units?
Also If I use an air intake approach, I am concerned about intaking snow and/or rain, anyone have experience with the above?