Thermo-Pond
The best thing you can do for your fishpond in the winter.
The Thermo-Pond™ unique patented design maintains a hole in backyard pond ice for just pennies a day. Unlike stock tank heaters that use up to 1600 watts, the Thermo-Pond™ is so efficient that it uses only 100 watts, saving you as much as $30 to $50 a month in electricity. Thermo-Pond™ floats on top of the water and is completely safe when used with a pond liner or plastic pond. The design of the Thermo-Pond™ assists the escape of toxic gases all winter long to help maintain a toxic-free environment for fish living under the ice. Thermo-Pond™ has been tested to 30º below zero Fahrenheit. One year limited warranty. Patented.See below for calculating how many heaters you need.
How many heaters do you need?You should have one Thermo-Pond™ for every 1000 gallons in your pond. You can calculate the size of your pond by multiplying the average Length x Width x Depth x 7.5. This will give you the number of gallons your pond holds.