Chicken watering nipples, that is. I water my chickens outside the coop to keep the water mess, outside. The water is outside the coop proper but in an enclosed covered run. Last winter I believe it hit about 20 below, normally down to 0 or so. I have my waterline heat taped and a metal bucket and valve (float) so it's automatically kept filled. The bucket sits on a homemade heater. The bucket may have a skim of ice on it on the coldest mornings. For continuous extreme cold it gets a heat lamp over it. So..after this long story, how can I convert this setup to use nipples? How can I keep them from freezing up. Most of the set-ups I see use plastic buckets or pipe and I don't see how I can keep that stuff heated. Any help would be appreciated. Thanks and regards, Woody