Invest in a submersible stock tank de-icer that makes winter on the farm easier. The Farm Innovators Ice-Chaser Multi-Use Utility De-Icer is designed to keep water from freezing during the winter in a variety of applications. This sinking stock tank de-icer is made from sturdy cast aluminum.Constructed of cast aluminum for ultimate efficiency and safety,Thermostatically controlled to operate only when necessary,Extra watts for extremely cold climates or oversized birdbaths,Safe in all birdbaths