Hot water freezes faster than cold.
That depends. The whole "hot water freezes faster than cold water" has not been easy to prove consistently in lab experiments.
"It all depends on how fast the cooling occurs, and it turns out that hot water will not freeze before cold water but will freeze before lukewarm water"
https://www.scientificamerican.com/article/is-it-true-that-hot-water/
So yeah. I stand behind my hot water comment. (mainly because it worked for me).
Edit: Lukewarm water, not hot. But hot water doesn't freeze before cold water.

It also doesn't hold enough water for my birds. So now I'm thinking of purchasing either a larger dog dish or a heated base. Does anyone have experience with the metal heated bases likes this one?

