This all season drinker is unique in design and solves the problem of frozen drinkers in the winter. This is a thermo statically controlled drinker that keeps water from freezing in sub-zero temperatures. The base itself has a built in electrical connection. Simply plug in your extension cord and your ready to go. Keeps water from freezing in sub-zero temperatures when winter is over. Just unplug and use the drinker like any other. To fill, you flip upside down and it will stand alone. Remove the rubber plug and fill. Includes an easy grip carrying handle. The base is 12 3/4 in. in diameter and the whole unit is in the see through tank. We suggest it be placed out of the wind. 3 gallons. 100 watts. Heated Poultry Drinker