Ok I got a cl650 around one year ago no problems so far all works as it should. Some of the things I did not consider were the fact that this is in my living room and when its on it blows heat across the living room.And another thing I did not plan on was that it added 4' of head pressure on the main pump. That said I am happy with performance so far.On a scale of 1-10 on noise I would say its a 6.
Hey auqua man, You could do what im getting ready to do and attach a dryer vent hose to the chiller and pipe it up behind the tank or out if you can cut a hole in your ceiling. Better up then across the room.