The companies that manufacture these products NEED to market them responsibly, and recommend CLEARLY on the packaging that they should not be used without a rheostat or thermostat, if they don't place a rheostat on the cord (which would be the most ethical solution).

Claims that people are not using them 'according to directions' don't cut it. Substrate WILL be pushed aside by any animal, even if it does provide some protection from the heat of the UTH. Therefore, the product is a hazard to the animal, even when used as directed, as it is intended that the animal be in the cage, with access to the substrate, and is therefore able to move the substrate.

My personal issue with these companies is not that they make these products, but that their packaging fails to provide accurate instructions to consumers on how to SAFELY use them. I don't want them to pull their UTHs off the market, I want the to change their package text to provide proper instructions for pet owners.

I'm glad to see people doing these experiments to prove that the company's claims are deceptive.