Consider the hot pipe example. Sounds like free energy, right? Hot pipes leak heat energy, it’s what they do. However, pipes are also usually suspended in the a

Consider the hot pipe example. Sounds like free energy, right? Hot pipes leak heat energy, it’s what they do. However, pipes are also usually suspended in the air, and air is a really good insulator. You put this device on a pipe, you might start wicking heat away from the pipe faster, making your boiler or whatever need to expend more energy to keep the pipe hot.