I have a 55 gallon water barrel set up for spring, summer, and fall watering and it really saves on time spent servicing the chickens. Winter! Thats another story and filling a heated water dish a couple times a day and evening is a real drag! A few good tips and ideas on here construct one for winter use. I hadnt thought that warm tap water would be like you and I drinking a cup of hot cocoa! I will definitely start giving it to my birds to warm them up inside.