I keep (2) 60watt ceramic heat bulbs on in a vision 632. When she goes of feed she will spend alot of time at the cool end of her cage. She doesn't have a wheeze but a real audible hissing sound when I have her out or if I disturb her. She is about the easiest python to handle and shows no interest in biting but is as vocal a snake as I have ever had. Usually a mild RI can be aided by bumping the temp up and correcting or changing humidity. I've only had RI in some Ball Pythons and was able to move them to a smaller tank with warmer ambient temp for about a week or two with a temp of 90-95 on the warm side.Hope this helps some.