Details Features a built-in heater that uses only 60 watts of power. The Farm Innovators D-19 Square Heated Pet Bowl features a unique square construction with a 1 1/4 gallon capacity. Comes thermostatically controlled to operate only when necessary. This water bowl is designed for chickens, dogs, cats, and other small farm animals. A heavy-duty anti-chew cord protector deters chewing. Thermostatically controlled to operate only when necessary Square design, easy to re-fill and clean Built-in 60-watt heater keeps water from freezing during the winter.