My herp vet gave me a great solution: Go buy a large mister at the hardware store - the kind you use on a large area. It mists a very fine mist... then fill it with the hottest water from the tap you can. Once you mist the cham with it, the tiny droplets will be just the right temp. Always test it first - mine is never too hot. I start misting the plants and cage first, then work toward my cham. I try to go over her head so it falls like rain. She usually runs at first, but usually always stops and sits for a bottle. Sometimes she will take two full bottles! There are always those days that she wants nothing to do with it, but if you mist daily, these are few. Good luck!