I dont have a rack yet, but my friend is building me one. It uses v70 tubs from vision. There is heating film under one end, and the tops of the tubs are covered and ventilated with 25% holes on top. It is 10 tubs high.
I have opted to have each heating cable separate from one another so i can adjust the rack using multiple controllers if i need to. To start with they will all be plugged into the same controller. The controller i have chosen allows for 2 separate heating systems, so the tubs down lower will be controlled differently than the tubs up higher (heat rises....all controlled the same then the lower tubs may be too cold, and higher tubs too hot).
I have attached a pic of another one he has made.
This rack is costing me a pretty penny, but should be really nice.
rack.PNG
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