NancyNurseCxMama
Songster
Chewy.com has a 96 oz heated water bowl for less than $14. I am going to order one soon because there will be a few days when we will have to be away from home for the whole day. Right now, we put a one-quart container of very hot water inside our chicken waterer and it keeps the water from freezing for about three hours. Then we go and switch out the waterer. Repeat as needed.
https://www.chewy.com/kh-pet-products-thermal-bowl-pet-bowl/dp/54450
https://www.chewy.com/kh-pet-products-thermal-bowl-pet-bowl/dp/54450