| 摘要 |
The de-icer apparatus uses the warmer water below an ice cap on a fishpond to maintain an opening in the ice cap for venting gases generated below the ice cap. The de-icer apparatus uses a low voltage heater to warm the water entering the lower end of the apparatus and moves the water by convection to the upper end of the apparatus. In one embodiment, the heated water is moved out of the upper end of the housing to prevent the formation of ice. In another embodiment, the housing provides a chimney effect for venting gas and melting snow.
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