Got some good data to work with now. Seems like with the background room temp of 64 deg these are the following results...

1. Direct on glass with aspen covering = 117 deg
2. Top of aspen bedding (1.5" = 76.9 deg

3. Direct on Ceremic tile with aspen = 111 deg
4. Top of aspen bedding but with light layer (.25" = 83.7 deg
5. Almost bare ceremic = 81.6 deg
6. moved the aspen bedding away from the core center of the hotspot (with some remainingon the ouside area of the tile = 80.5 deg

Havn't used the lamp dimmer that I got for 10 bucks at homedepot yet.

Thanks for the tip on the flexiwatt sources... Just looked up one vender and appears I could get 3 feet of 11" with 2 kits assembled and shipped for $25. Thats cheap! Wish I knew that before buying my UTH oh well... Said must use with thermostat but could a lamp dimmer be used, mine is rated up to 300watts.

So you have the flexiwatt with tile on top of it and that works fine for you? Why the back flexiwatt taped up vertically? I guess I was thinking of 11" by 1.5ft bottom running along the back and the other one along the back horizontally so the edges align up with each other.

Mind me asking what type of reptile collection you have?

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