Hi everyone... I have a question about heating a snake rack. I recently built a 6 foot rack for 28 qt. bins. I am keeping corns, milks, and kings. On each shelf (there are 8 sheleves)there are two 28 qt. bins side by side. Should I run two 11 inch Flexwatt tapes down the back (left and right side) or just one 11 inch flexwatt down the middle? Thanks in advance for your help....ELvy


