I checked out the link... "Heating is not drying." I guess that's true... but they're going to have to do better than that to get me to shell out more than the $20 my dry box cost me: A couple of homemade desiccant bags are keeping things drier than Melissa Ethridge at a Limp Bizkit concert in there. The two bumps are from opening the box for a few minutes. I'll add two more rolls today or tomorrow and see what that does to the %.