I'm thinking about doing the 5 gallon bucket with the nipples in the bottom...seems easiest for me to do by myself. It's time for me to think about what to do for the winter too...I've done a lot of reading in here and don't really want to try the cookie tin method or the aquarium heater method. What about this http://www.walmart.com/ip/Farm-Innovators-H-49-5-Gallon-Submergible-Water-Bucket-Heater/19868984 in the bucket? Does it plug into an extension cord? Also, would one big bucket with 3 nipples be enough for 12 hens? Would putting the deicer in the bottom of the bucket prevent the nipples from freezing?