Keep your Smidley automatic waterers ice-free all winter with reliable replacement heaters and adjustable thermostats. These rugged, easy-install components are built for barn, pen, and pasture use—delivering steady freeze protection, consistent water temperature, and efficient power use. Pair a new heater with a matching thermostat to restore fast recovery and protect valves, floats, and lines in extreme cold. Backed by our family-owned shop with fast shipping and friendly support.