I live in northern WI. can you say chilly? Brr! We have been using the galvanized 5 -10 gallon founts on a heated base for years, but they rust, develop holes and they seem to break readily. I've replaced three in five years. Looking for a better solution. The red plastic founts say not to put them on a heated base so I've never tried. Can you do it? I tried a cooler where a placed horizontal nipples, but the dang chickens ate the silicone and the nipples flew out with a woosh of water! The run was sorta wet for a few days after that disaster. Can't bring out enough water for them twice a day, my back won't let me. Someone can help with their experiences please?