I am looking at getting a 1/15 HP price chiller for my 35 gallon hex and have a setup question - Reading the info, it states that I need 24" clearance on all sides (front, back and sides)...is that true? I have space open on the right side and front, but the back would be more like 3-4" from a wall, and the left side would be next to my hex stand. Would this be acceptable, or should I not buy the chiller?