Her cage is heated by a space heated that has a built in thermostat. The heater is blocked off by screen so she can't hurt herself with it. Her basking area stays at about 80 and the lower areas of the cage stay at about 75. My house tends to be a very dry place, so the last time I tried a screen cage my vet told me to use a glass one. Her cage gets misted 3 times a day, drying out between each misting. I am measuring the temp with a reptile thermometer. I haven't been dusting her food with anything either because I don't know which one is the right one, so if someone could suggest what to get that would be great.