This is a completely valid test, 99% of new BP owners who use an unregulated UTH will simply stick the UTH to the bottom of the tank, throw in some aspen and call it a day. Even if they follow the directions to the letter (which can be found here: http://www.zoomed.com/Library/Produc...tankheater.pdf )they still aren't going to do much different. (add in a piece of Reptile Carpet)
A FEA a foot out isn't going to get you much data as UTH's really don't effect the surrounding air all that much... (this can easily be proven by hovering your hand 1/2" above a UTH that has been on for a few hours... you really aren't going to feel any heat radiating off of it)
This thread hasn't said anything negative about these products at all... simply that they get to a certain temperature that in all reality is far too hot for a BP... My thread that you are referring too is not trying to say that these products are bad, but that I feel that their packaging is misleading and should be changed. I have no issue with the product itself (as it is nearly identical to flexwatt or any other resistive heating pad on the market today) I feel that they are overpriced and that is why I do not use them. I do have an issue with a company not being upfront about something that can (and has) lead numerous reptiles to get burned.