Hi everyone... I was at the office today and noticed that I had one of those cheap (WalMart $2) coffee cup warmer on my desk, and I started thinking....(always dangerous when Aussies start thinking)... Has anyone thought about using these under their chickens water to stop it from freezing? It has two settings...low and high....and the low setting seems to not heat up the pad so its too hot to touch. My big concern is that it will melt my plastic water holder... Anyways...any comments of ideas? G.