pipd ~ I wasn't planning on purchasing one; I took a photo of an all-in-one model to post since many members have been discussing ways to keep water from freezing. I am home enough that I can keep an eye on the water bowls. I occasionally used a heated dog water bowl last year and they all survived, so I can use that again when needed.
I agree with Leahs Mom on the dismantled heated water bucket. I looked at the bottom of mine and
there isn't any sealant or water stripping or anything to block water from getting in there as far as I can tell. At least the duct tape would slow the water down. I can't see how that's any more dangerous than leaving the water dish in one piece. I, of course, will look things over carefully before I do anything, though.
Speaking of makeshift water heaters and etc, though, I wanted to post a warning to those using the kind with light bulbs. I recently read about Teflon-coated light bulbs producing a gas that will kill birds of any kind when they are lit.
Sometimes they are not labelled as Teflon-coated, just as "shatter-proof". Please be careful and read closely if you're going to have light bulbs of any kind in the coop!