Today my dad and I were putting together a shopping list of what will be needed to build a 6 tub single stack of 41qt sterilite tubs. It will be a standard 38"ish deep by 18"ish wide with 3 full walls. What I need to know is what size of THG heat tape will I need to purchase? 4" or 6"? I've read that when choosing a UTH for a glass terrarium the heat source should cover 1/3 to 1/2 of the floor space. Is the same thing true for plastic tubs? Or will the fact that racks hold heat better reduce the need for a larger heat source? The rack is going to be a bedroom without any additional heat. If ambient or cool side temps aren't high enough I will include a plexiglass door to trap heat. Mine is going to look similar the one pictured. Any input from builders will be appreciated.
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