Any chance one of these exists? This is the waterer I have in the coop. http://www.tractorsupply.com/harris-farms-double-wall-drinker-5-gal--2167191 I currently do not have electricity hooked up out there. Chipping ice in that thing, especially with that tiny hole that gets blocked with ice... Not fun! Is there a heater I can use to keep the water from freezing without needing an outlet? Also, should I be upping the protein content during the winter? They get sunflower seeds as a treat, but otherwise the flock gets layer pellets, plus whatever table scraps. Not usually meat though, the dog usually winds up with the meat scraps.