New here, so sorry if this sounds crazy. We're looking to our first winter with the chickens in New England (15 miles north of Boston), and we obviously need something to keep the water from freezing. We'd like to avoid running electricity to the coop, so that eliminates traditional heated waterers. I haven't come across a solar heated waterer either. BUT, they do make birdbaths with solar-powered pumps. Presumably the movement of the water would keep it from freezing even when temps dip below freezing. For example: http://www.birdbaths.com/bird-baths/ceramic-bird-baths/ceramicfrogsolarfountain.cfm What do people think? Would this work? The water would probably freeze at some point, and could damage the pump and fountain. Interesting, though, no?