Ok I am going to chime in. I believe this is a battery operated model? It is also an U/S style as well correct? There should be no problem with its use during a shed. They are quite notorious for bacteria over time and need to be cleaned SUPER well REGULARLY. I would also be concerned about spillage.

I use room humidifiers to hold humidity and opt for ventilation over stagnation. I don't like tubs for small collections as they really need to be in warm rooms not cool ones like what is common to small a snake or two collections. Exchanging humidity problems for heating problems is not wise, humidity is generally not a life threat where as temps can be.

Ideally you won't need the humidifier I think it is a band aid solution to a complex problem. It will work but I feel there are better approaches. The idea of the animal basking is not generally correct with Royals they don't tend to unless there is a gradient issue. That being said UTH do not help ambient air temps much or at all so often in cool room situations a secondary heat is needed.

I have a a couple of suggestions the first one is a bit of work but often solves the ambient temp issues and can go a long way to solve the humidity issue. The open top is the problem you loose heat and humidity to the top. Covering the top is not something I like to suggest tanks do not vent well as it is and restricting that down more can lead to problems. The real issue is there is too much height.

I can up with this design, it is one way but this kind of treatment can solve both the addition of a light inside the enclosure (fluorescent light) adds lots on ambient temps and insulating it a bit helps to keep it.


http://ball-pythons.net/forums/showt...arium-Solution

Coco coir (eco earth) substrate adds tons of humidity it may be an alternative that can help too. Humid hides also can solve the problem too. They are the easiest but you are left with what looks to be an ambient temp issue. Your choice there is no hard and fast answer every case is different.