K&H Thermo-Pond 3.0 Pond Heater 100 watt

The world's most successful and efficient low-wattage pond de-icer.

•  Uses only 100 Watts
•  Maintains a hole in backyard pond ice for just pennies a day.
•  Floats on top of the water.
•  Thermostatically controlled never to get hot.
•  Completely safe when used with a pond liner or plastic pond.
•  Fish friendly - helps toxic gases escape to maintain a healthy environment for   fish living under the ice.
•  Tested in northern Wisconsin at temperatures of 30° below zero Fahrenheit.
•  One-year limited warranty.