im in process of getting materials to build the 9 shelf 41q rack. my question is can i run back heating vs. belly heating to cut down the amount of heat tape id need? i was thinking of enclosing the back and half way around the back with a eucaboard style board and was thinking about either one strip of 11watt down the back? would that be enough or should i run the belly heat instead? im trying to do it on a budget and the belly heat is a lot of heat tape....