K&H Pet Products Pond Heater for Outdoor Ponds with Fish, Thermo-Pond 3.0 Deicer Keeps a Hold in the Ice for Oxygen Exchange for Live Fish, Energy Efficient, Safety Listed - 12in Black 100W

For ponds up to 1000 gallons. The world's most energy-efficient pond heater. Thermo-Pond is a unique pond heater that keeps a hole through the ice in backyard ponds for just pennies a day. In fact, Thermo-Pond can save up to $30.00 a month in electricity VS. those high wattage stock tank style deicers. Just think, Thermo-Pond pays for itself in as little as 2 months. Thermo-Pond floats on top of the water and is thermostatically controlled to never get hot. Unlike some other heaters, Thermo-Pond will never burn a pond liner or plastic pond. It naturally allows the pond to ice over while maintaining a hole through the ice. Allowing that gas exchange can help keep a healthier environment during the winter months Thermo-Pond should be used in ponds that are deep enough to allow plenty of livable water under the iced portion of the pond. MET safety listed..

• LOW WATTAGE: The world's most successful and efficient low-wattage pond de-icer
• HOLE IN ICE: Uses only 100 Watts and maintains a 12" hole in backyard pond ice for just pennies a day (it will not keep other open areas in your pond)
• FLOATING: Floats on top of the water and is completely safe when used with a pond liner or plastic pond
• FISH FRIENDLY: Assists the escape of toxic gases all winter long to help maintain a toxic-free environment for fish living under the ice
• TESTED: Tested in northern Wisconsin at sub-zero temperatures, keeping a 12" hole in the ice of your backyard pond (pond should be at least 18" deep)
• SAFETY: This pond deicer has been tested & certified by MET Labs and exceeds USA/CA electrical safety standards; K&H doesn't just use safety listed parts, we safety certify the entire product - For outdoor use with 110/120 volt electrical current only
• BRAND YOU TRUST: Designed by K&H with OVER 20 years of experience in creating safe, innovative, quality products for pets
• IMPORTANT!!! ALWAYS keep snow cleared from the top of the unit; snow build-up can break the seal causing your deicer to fill with water and/or stop working