I have kept several glass cageswith good results here is what I do. I use a foil faced insulation with air holes cut in it to cover the screen, then I use a uth on a thermostate under the hot hide. I use a infrared (red ) bulb on a dimming device so I can fine tune the ambiant temps. The red bulb stays on 24/7 and I have found that placing the bulb directly over the water dish keeps my humidity at a constant 50-60% hope this may help you.