My heated bowls are in a plastic dog crate I picked up at an estate sale. Had no idea what I needed it for at the time but it sure did come in handy. I have a blue tarp over it to keep the winds & snow out. The water gets frozen around the rim of the bowl but the water is lower than that so the girls can still drink. I put a glass cup inside the water bowl so they don't walk in the water. But I keep catching Lucy standing in the feed bowl. I have it up on a block so they would not walk in it. But she didn't get the memo. Guess I need to put a glass or bowl inside that heated dog bowl as well.Well heated dog bowls is a bust had to move water and food back inside the coop. This spring I'm going to build a shallow 3 sided box just enough to fit the food and water in. I was wondering why chickens wasn't out eating and drinking all day and turns out the FF and water was frozen on top. Had enough cold wind to out do the dog bowls. Once I broke the ice and mixed the FF it was game on. I had to kick one ee out of water because she was standing in it like a hot tub. Well now to go work on frozen pipes and busted pipes.
Good luck on the frozen pipes. -10 here with the windchill & it doesn't look like its going to warm up anytime soon.