Title: Keeps water from feezing
Review: I bought this to place in a large plastic bin that I use to keep water for two miniature horses. It has performed well, and last winter was one of our coldest. We had several nights of -24 F. To cold for this area, but in any case it kept the water from freezing all the way. Some of it did freeze, but the water directly over it did not. This winter I hooked it up again, and it's working. Great value.
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