K&H Pet Products Thermo-Pond 3.0 Outdoor Pond Heater Deicer Black 100 Watts

Low power consumption, only 100 watts Keeps a hole in the ice of backyard ponds for only pennies per day Thermostatically controlled and never becomes hot Safely use with any pond or pond liner Friendly to fish-allows the release of toxic gases from under the ice Thermo-Pond 3.0 has been tested & certified by MET Labs to exceed USA/CA electrical safety standards One-year limited warranty