Yes. I do, and they work wonderfully well even during awful cold snaps. (I get mostly rain in Oregon where I live, but each winter we usually get 2 or 3 weeks of horrible cold, below freezing, sub freezing weather).
I bought 2 cheaply off of Amazon (one for the first winter, then bought another the second winter because I liked the first so much. They have lasted years.)
I got these.
https://www.amazon.com/Farm-Innovat...id=1505772245&sr=8-1&keywords=heated+dog+bowl
I picked up 2 of these bowls about a month ago. I currently use large water bowls, so no learning curve will be required hahaha. The heated dog bowls flare out a bit at the bottom and will be more tip resistant than the bowls I normally use, but even those haven't been a problem. I will put one inside the coop on the feedbox where their current bowl is -- I put it here so the chickens don't have to drink muddy duck water. The other will go outside in the run for the ducks.
In addition to an increased risk of tipping over and getting filled with bedding material, it's more likely the wattles will get wet when the chickens drink and then freeze during really cold temperatures.
This is my first year with chickens, so not looking forward to any frostbitten combs or wattles. I plan to coat their combs and wattles with bag balm or vaseline to help prevent frostbite.
I do too -- 2 Pekins and 10 chickens. The ducks really make a huge mess in the coop if allowed water in there, so have the chickens water up where they can't get to it and the duck water is in the run.I do that too unless it's too far in the negatives. I have ducks so they'll make a huge mess if it's in the coop.