Farm Innovators Model HPF-100 "All-Seasons" Heated Plastic Poultry Fountain, 3 Gallon, 100-Watt Three gallon water capacity in reservoir Thermostatically controlled to operate only when necessary Keeps water from freezing down to 0 f Easy fill from bottom Designed to hang Thermostatically controlled to operate only when necessary Prevents water from freezing down to 0-degree F Ideal for year round use 100 Watts