Hello everybody! Hey, I just installed some cup drinkers and they work great. These actually work with a float valve and keep a cup full of water in them. Anyway, I got to thinking about how going to winterize them.here are my thoughts.I will put a fish tank heater in the five gallon reservoir, and then I will put 2 250watt heat lamps fairly close above the cups themselves. Critique and put your opinion forward. Oh, and I live in nebraska, so it can get to around zero easily during the winter. And yes, the drinkers will be inside the unheated coop and the pipes are insulated as they were made that way. Thanks in advance!