So in the quest for more rack space I started looking at my closets only to realize the framework for adult racks were right in front of me all along! I had put these wardrobe cabinets in a bunch of years ago and I barely use them. One is 22" wide and the other is 39" wide. Here are some pics of the 22" wide converted into 10 28/32qt slots. the wiring concept is thanks to George of GLK Herp.
This is the 22" wide one
Cabinet before:
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removed all the hardware, started on shelves, used CD's for spacing
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because the back is right up against the wall I ran the flexwatt out the side and drilled for the probe
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I used this Terminal Block strip to make the connections (George's idea, Thanks!) This allows for each shelf to have it's own strip of flexwatt with only one cord to the T-stat and super easy to make all of the connections
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I know it looks crazy, but it is safe and any single shelf can be easily disconnected for repair (if necessary) or if I only want to run a few shelves. I cut one wire too short so the wiring wasn't as neat looking as I originally planned, but it does go in the closet after all. . .
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the shelves are installed w/ heat and it's back in the closet
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You can see the other cabinet next to it, that's the next project to convert it for 9 slots of 41qt tubs! Gotta dig the green Paisley shirt (I don't wear it but I just can't manage to give it away ) Thanks for looking!! Let me know what you think!