my aqua logic 1/3 hp chiller sits outside the house right next to the wall where the end of the tank is on the inside, so i just ran the plumbing and electrical plug thru the wall. then, i made a small box to shelter the chiller from weather (still havent had a chance to paint it yet). i made that box just big enough so that the foam insulation (1/2" blue foam from lowes) fits snugly against the sides and top of the chiller.