yea I would agree with you, however this is my position. My local snake breeding buddy is moving and getting rid of his hole collection. So i am buying a 20 tub cb-70 rack from him with flexwatt and a helix 1000. This will make my life so much easier but right now, I am working with what I have. Is there a really cheap temporary therm out there somewhere? And do you think the 100 degrees would transfer threw the glass at 100 or would it be less?