yes, if one of your connection is bad, it's not letting the same power reach your lower levels. plus heat rises and it would close the difference in your temps. the hard wood floor will also cool your bottom racks more than what you would think. I would get something in there to help insulate it some. and I would get someone to solder all the connections. there shouldn't be that big of a difference with new heat tape
How do you solder the wires to the heat tape without damaging the plastic parts? Is there a video showing how to do this?
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How do you solder the wires to the heat tape without damaging the plastic parts? Is there a video showing how to do this?
don't know if there's a video on the old style heat tape but reptile basic website was info on the new THG heat tape. the other stuff you have to either cut the plastic or melt it away with a soldering iron.