Houston's weather is actually very similar to the Tampa area... Hot and Muggy in the summer, cold and wet and in the winter. I mean, "cold" not really but we usually get snow once every 10 years or so. This winter it got down to the 30s, the heaters were able to keep it warm just fine.Wow! Amazing!
I am in central FL, and I had no idea this could work! An outdoor tank!!! Way to think outside the box/home
My tank sits under a roof, probably a good 3 feet from the edge, so that does help. It is not "out in the open"