55 degree water out of the well is warm compared to air
temp, it doesn’t have to be ‘HOT’ not even warm to the touch
so far as your hand is concerned. To a horse water warmer than the
air is great and they will drink more. Even toping off the buckets in the
barn after removing the crust of ice with a small bucket of hot water from the
house makes is warm for a long time. They have one tank with the heater
outside and get warmed buckets in the barn, they drink nearly a bucket
overnight and the 4 horses nearly empty the tank every other day.