Does anyone out there have information about dish heaters. I have a Directv Slimline-5 dish, and it seems to be happening with more regularity that my dish gets caked with snow during snowstorms and I lose my signal. This happens anytime I get a wet, heavy, snow. I have seen some info on line, but would like to know if anyone has any experience with them. I would love one where I could just throw a switch when I need to.