I agree. I have had 2 of them and will not use them again. I too had one short out. And I had one nearly burn a hole in the floor of the enclosure. Both of them had appropriate amounts of water too.
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1.1 Cal. Kings
1.0 Ball Python
0.0.1 Jungle Carpet Python
0.0.2 African House Snakes
0.0.1 Oketee Corn Snake
0.1 Salmon Boa Constrictor
0.0.1 Marbled Salamander
0.0.1 Japanese Fire-Bellied Newt
0.2 Labs