I live in Maine, where it has been below freezing at night for a couple weeks now. I hadn't noticed a problem with the water freezing until this morning. I went to my local Feed Store and they had a heated waterer, but it was $63 and it was huge, I think 3 gallons! I only have 10 chickens and as it is they do fine with a 1 gallon waterer right now. I don't want to buy one that is so big and I need to do something to keep the water from freezing at night (and before I know it durring the day as well!) now. I've looked all over the web to see what else is out there or if there is a 1 gallon heated waterer, but I have come up empty handed. I found people that have improvised and used different tricks to keep the water from freezing. I DON'T want to have to go out and change their water more than 1x/day. Someone told me to get a hot plate and put my current waterer on it, but it is plastic and I'm not entirely comfortable with leaving something like that on all night. I've also heard putting a heat lamp on over the waterer works, but doesn't the light on all night upset the chickens? Does anyone have any ideas or advise??