Thanks, Triplell. Looks like we're practically neighbors! LOL Princeton here. If your dishes stay open down to -25* then maybe I could try them outside for awhile and see if that helps. I'm sure windchill will also be a factor, but yours are holding out pretty cold, so it's worth a try. I'll let you know how it goes. I'm sure summer has a whole new batch of issues to deal with, but I find myself looking forward to NOT dealing with ice. Well, I guess that means this January is no different that all the past ones. LOL
We have one for the outside dog and he just simply won't come inside for nothing. His choice. It is never froze over but it did have some frost all around the edges. I just bought another one for another coop. Now all I need is one more and then I won't have to worry about breaking the expensive water tanks.