The first thing to note is that pond heaters and pond de-icers are the same thing.
That’s right. Two different names, but it’s the same product and it achieves the same outcomes. So, whether you buy a pond heater or pond de-icer, you will be getting a product that is designed to keep your pond from completely freezing over in frigid temperatures. The choice you must make is whether to purchase one that is submerged or floating.
* Floating pond heater/de-icer: located on the surface of your pond, these floating pond heaters/deicers use heat to keep an area of your pond’s surface open during the winter. In addition, they are temperature-programmed, so they only run when the water temperatures hit a certain point. Floating pond heaters/de-icers won’t keep your entire pond surface free from ice, but they will create a big enough hole for the exchange of gases to occur.
* Submerged pond heater/de-icer: these placed in the bottom of your pond and are used to heat the water at your pond’s lowest point. These are most beneficial in ponds less than 18 inches deep, because they will give your fish enough warmth to prevent them from freezing to death. You’ll want to monitor your pond’s surface closely, though, because a submerged heater can’t guarantee that it will generate enough heat to keep the surface of the pond from freezing over. If you notice that it isn’t doing enough on its own, you may need to purchase a floating version as well.
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