He's away from his computer about 90% of the time at the moment, so thats probably why you haven't been able to get a response via email. The way he has it heated is he has individually wired 11" flexwatt heat on each level. Last time I asked about it he said its working great. I have the same shelf built in my snake room and I have back heat running rather then individual level heat (Its in a heated room) I also have a neonate rack made from smaller shelving with back heat, and both work great but I highly suggest covering the backs and sides of any shelves with reflectix with either heating type (especially if you go with back)

Here is a pic of mine before the heat tape was attached (you can see the reflectix along the back)

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Randall L Turner Jr.
Boas make the world go round.

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